Journal articles: 'Bases Loaded 2'

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Antonov, S. A., R. V. Bartko, P. A. Nikulshin, A. Yu Kilyakova, B. P. Tonkonogov, and А. M. Danilov. "Review of Recent Research on Grease." Chemistry and Technology of Fuels and Oils 624, no. 2 (2021): 50–56. http://dx.doi.org/10.32935/0023-1169-2021-624-2-50-56.

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Based on the analysis of scientific, technical, and patent literature, the main directions of the development of greases are described: super-alkaline calcium greases for highly loaded friction units, research into the possibilities of nanosized particles as additives to multifunctional greases, and the production of low-temperature greases on biodegradable polyester bases.

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Ersoz, M., S. Yildiz, and E. Pehlivan. "Separation of Nucleosides and Nucleic-Acid Bases by Ligand-Exchange Chromatography Using Cu+2- and Ni+2- Loaded Glyoximated Diaminosporopollenin Derivatives." Journal of Chromatographic Science 31, no. 2 (February 1, 1993): 61–63. http://dx.doi.org/10.1093/chromsci/31.2.61.

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Ohtani, Bunsho, Yosuke Goto, Sei-Ichi Nishimoto, and Tomoyuki Inui. "Photocatalytic transfer hydrogenation of Schiff bases with propan-2-ol by suspended semiconductor particles loaded with platinum deposits." Journal of the Chemical Society, Faraday Transactions 92, no. 21 (1996): 4291. http://dx.doi.org/10.1039/ft9969204291.

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Tong, Gengshu, and Guoran Xing. "A Comparative Study of Alternative Approaches for Stability Design of Steel Frames." Advances in Structural Engineering 10, no. 4 (August 2007): 455–66. http://dx.doi.org/10.1260/136943307783239354.

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Approaches for stability design of steel frames include the traditional and the modified effective length methods and the notional load approach. This paper presents a storey-based stability factor approach in which storey slenderness and a stability coefficient for a storey are defined, the stability of a storey is checked as a whole. Also presented are detailed comparison of the modified effective length approach, the notional load approach and the proposed storey-based method with FEM. Seven frames, with different bases or beam-to-column connections, one or two spans, one or two stories, with or without leaning columns, uniformly or unevenly loaded, are analysed. Various imperfections are considered. All frames are assumed to be axially loaded to serve as benchmark problems for checking the priority of available methods. It is found that the notional load approach is ideal for frames that are uniformly loaded, and if the modified effective length factors of columns are within 1∼2. The modified effective length is not accurate enough in considering the inter-column interaction of a storey failing in an elastic-plastic state. The proposed storey-based stability factor approach shows good agreement with FEM for all the frames analysed.

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Zhang, Wei-Ming, Jin-Long Chen, Bing-Cai Pan, and Quan-Xing Zhang. "Competitive and Cooperative Adsorption of Aromatic Acids and Bases onto a New Aminated Macroreticular Adsorbent." Adsorption Science & Technology 23, no. 9 (November 2005): 751–62. http://dx.doi.org/10.1260/026361705776316541.

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The adsorption behaviour of three aromatic acids [phenol, benzoic acid (BCA) and 2-naphthalene sulphonic acid (2-NSA)] and of one aromatic base (aniline) on an aminated macroreticular adsorbent (NDA103) were investigated employing single or binary batch systems at 293 K and 313 K, respectively. All the adsorption isotherms in the studied systems could be adequately fitted by the Langmuir model, thereby indicating the existence of an exothermic adsorption process for phenol, BCA and aniline. At low equilibrium concentrations, the individual uptakes in the single-component systems were higher than those in binary-component systems because of competition between the two types of adsorbate molecules towards the adsorption sites. On the other hand, it is noteworthy that the total molar uptakes of adsorbates in the binary-component systems at high equilibrium concentrations were larger than the uptakes in the single-component systems. In binary-component systems, a large excess of aromatic acids was noted on the adsorbent surface at saturation, presumably as a result of a cooperative effect arising primarily from acid–base interaction between the loaded adsorbates.

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Boonme, Prapaporn, Kamon Panrat, and Wiwat Pichayakorn. "Pseudolatex from STR 5L Block Rubber for Drug Delivery." Advanced Materials Research 844 (November 2013): 166–69. http://dx.doi.org/10.4028/www.scientific.net/amr.844.166.

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Pseudolatex is colloidal dispersion containing spherical solid or semisolid particles and can be prepared from any existing thermoplastic water-insoluble polymers. It is useful for drug encapsulation and controlled drug release. In this study, pseudolatex base was prepared from STR 5L block rubber. The various parameters such as speed and time of homogenization, type and concentration of surfactants, amount of mineral oil, and type of drug loading were studied to prepare the stable pseudolatex. These preparations were evaluated in particle size, pH, viscosity, emulsion stability, drug encapsulation, and in vitro drug release. It was found that the most stable formulation contained 3.5% block rubber, 0.2% methyl cellulose, 6% mineral oil, 4% dibutyl phthalate, 2% sodium lauryl sulfate, and 2% Uniphen P-23 using the speed and time of homogenizer as 20000 rpm and 20 minutes, respectively. Furthermore, the pseudolatex bases reduced the protein impurity form 0.5516% to 0.2108% in formulation with mineral oil and to 0.1781% in formulation without mineral oil, that could decrease contact allergy caused by the protein allergens. Dichloromethane residues in pseudolatex bases were 22.05 mg/L and 7.85 mg/L in formulations with and without mineral oil, respectively, that were satisfied from USP recommendation value of lower than 600 mg/L. Propranolol HCl, lidocaine HCl, and indomethacin could be loaded into pseudolatex only in the concentration of 1%. However, lidocaine base in the concentration of 1-5% could be loaded into pseudolatex which had the similar physical properties and stability to pseudolatex base. The in vitro drug release from pseudolatexs provided the controlled drug release for more than 24 hr.

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Suckling, David Maxwell, Mailee E. Stanbury, Ox Lennon, Kate M. Colhoun, Fabio Chinellato, and Ashraf M. El-Sayed. "Kairomone and Camera Trapping New Zealand Flower Thrips, Thrips obscuratus." Insects 11, no. 9 (September 11, 2020): 622. http://dx.doi.org/10.3390/insects11090622.

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This project investigated how kairomone lures, camera traps, and counting software could together contribute to pest management. Images of cumulative daily catch of New Zealand Flower Thrips (NZFT) attracted to a ripe peach lactone (6-pentyl-2H-pyran-2-one; 6-PAP) were automatically loaded to the internet and compared with scanned bases checked weekly using in-house software and manual counting. Camera traps were able to provide thrips counts equivalent to delta traps, but daily and remotely. An 11-fold greater NZFT count occurred within 24 h in passive traps after polyethylene sachets loaded with 250 mg of 6-PAP were placed in trees. Intensive trapping, by placing 1, 2, 4, and 8 traps per tree (500 mg/trap), resulted in a maximum 32-fold increase in thrips per tree. While 6-PAP has proved to be a useful tool for monitoring NZFT numbers, our results suggest that it is not likely to be suitable for mass trapping. Future research should investigate NZFT behavior to better understand population movement on an area-wide basis. Camera traps can be a valuable tool for recording insect flight activity remotely, but the number of traps required for statistically reliable estimates may be prohibitive.

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Mohanty, Debasis, and Shashadhar Samal. "Selective Removal of Toxic Metals like Copper and Arsenic from Drinking Water Using Phenol-Formaldehyde Type Chelating Resins." E-Journal of Chemistry 6, no. 4 (2009): 1035–46. http://dx.doi.org/10.1155/2009/195721.

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The concentration of different toxic metals has increased beyond environmentally and ecologically permissible levels due to the increase in industrial activity. More than 100 million people of Bangladesh and West Bengal in India are affected by drinking ground water contaminated with arsenic and some parts of India is also affected by poisoning effect of copper, cadmium and fluoride. Different methods have been evolved to reduce the arsenic concentration in drinking water to a maximum permissible level of 10 μg/L where as various methods are also available to separate copper from drinking water. Of the proven methods available today, removal of arsenic by polymeric ion exchangers has been most effective. While chelating ion exchange resins having specific chelating groups attached to a polymer have found extensive use in sorption and pre concentration of Cu2+ions. Both the methods are coupled here to separate and preconcentrate toxic metal cation Cu2+and metal anion arsenate(AsO4–) at the same time. We have prepared a series of low-cost polymeric resins, which are very efficient in removing copper ion from drinking water and after coordinating with copper ion they act as polymeric ligand exchanger, which are efficiently removing arsenate from drinking water. For this purpose Schiff bases were prepared by condensingo-phenylenediamine witho-,m-, andp-hydroxybenzaldehydes. Condensing these phenolic Schiff bases with formaldehyde afforded the chelating resins in high yields. These resins are loaded with Cu2+, Ni2+2+, and Fe3+ions. The resins and the polychelates are highly insoluble in water. In powdered form the metal ion-loaded resins are found to very efficiently remove arsenate ion from water at neutral pH. Resins loaded with optimum amount of Cu2+ion is more effective in removing arsenate ions compared to those with Fe3+ion, apparently because Cu2+is a stronger Lewis acid than Fe3+. Various parameters influencing the removal of the arsenate ion from drinking water to a concentration level below 20 μg/L are studied.

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Vinokurov, Vladimir A., Anna V. Stavitskaya, Yaroslav A. Chudakov, Aleksandr P. Glotov, Evgeniy V. Ivanov, Pavel A. Gushchin, Yuri M. Lvov, Anton L. Maximov, Aleksandr V. Muradov, and Eduard A. Karakhanov. "Core-shell nanoarchitecture: Schiff-base assisted synthesis of ruthenium in clay nanotubes." Pure and Applied Chemistry 90, no. 5 (April 25, 2018): 825–32. http://dx.doi.org/10.1515/pac-2017-0913.

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Abstract Natural halloysite clay nanotubes were used as a template for clay/Ru core-shell nanostructure synthesis. Ru-nanoparticles were produced via a ligand-assisted metal ion intercalation technique. Schiff bases formed from different organic compounds proved to be effective ligands for the metal interfacial complexation which then was converted to Ru particles. This produces a high amount of intercalated metal nanoparticles in the tube’s interior with more that 90% of the sample loaded with noble metal. Depending on the selection of organic linkers, we filled the tube’s lumen with 2 or 3.5-nm diameter Ru particles, or even larger metal clusters. Produced nanocomposites are very efficient in reactions of hydrogenation of aromatic compounds, as tested for phenol and cresols hydrogenation.

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Tokgoz, Selen, Arda Ozdiler, Burc Gencel, Ergun Bozdag, and Gulbahar Isık-Ozkol. "Effects of Denture Base Thicknesses and Reinforcement on Fracture Strength in Mandibular Implant Overdenture with Bar Attachment: Under Various Acrylic Resin Types." European Journal of Dentistry 13, no. 01 (February 2019): 064–68. http://dx.doi.org/10.1055/s-0039-1688533.

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Abstract Objective This study aimed to assess the effect of reinforcement, denture base thickness, and acrylic resin types on dynamic and static fracture strength in mandibular implant overdentures with bar attachment. Materials and Methods One hundred and eight experimental mandibular implant overdentures with bar attachments were fabricated in three main groups, namely unreinforced (control: C), reinforced with unidirectional glass fibers (FR), and Co–Cr cast metal (MR). Each group included denture bases of 2-, 3-, and 4-mm thicknesses and produced with conventional (CA) and high-impact acrylic (HIA) resins. Specimens were thermocycled (5,000 times, 5–55°C) then subjected to a 400,000 cyclic load regime. Unbroken specimens were then loaded until fracture by a universal testing machine. Differences in mean fracture resistance among the groups were compared using the one-way analysis of variance (with post hoc Tukey's honestly significant difference test) and Student's t-tests (α = 0.05). Results Fracture strength increased significantly when the denture base thickness was increased (p = 0.001). The 2-mm denture base thickness was not enough for reinforcement. The fracture strength of the FR groups was significantly higher than other groups for 3- and 4-mm thicknesses (p = 0.001). The fracture strength of the HIA resin was significantly higher than CA resin in FR groups (p = 0.029 and p = 0.001). MR groups showed the weakest fracture strength. Conclusions The 2-mm denture base thickness had sufficient fracture strength without reinforcement and a positive relationship between acrylic resin thickness and fracture resistance was found.

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Cao, Li, Yi Xiao, Wei Lu, Shiyuan Liu, Lin Gan, Jiahui Yu, and Jin Huang. "Nanomicelle drug with acid-triggered doxorubicin release and enhanced cellular uptake ability based on mPEG-graft-poly(N-(2-aminoethyl)-L-aspartamide)-hexahydrophthalic acid copolymers." Journal of Biomaterials Applications 32, no. 6 (November 13, 2017): 826–38. http://dx.doi.org/10.1177/0885328217741522.

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In order to achieve the passive tumor targeting and acid-triggered drugs release in lysosomes, optimized delivery system for doxorubicin based on pH-sensitive complex nanomicelles with suitable particle size was developed in this research. Particularly, poly(L-succinimide) was thoroughly ring-opened by ethylenediamine to give the poly(N-(2-aminoethyl)-L-aspartamide). Then, graft copolymer mPEG-graft-poly(N-(2-aminoethyl)-L-aspartamide)-hexahydrophthalic acid (mPEG-g-P(ae-Asp)-Hap) was synthesized by grafting mPEG-2000 and hexahydrophthalic anhydride onto poly(N-(2-aminoethyl)-L-aspartamide). In vitro studies revealed that mPEG-g-P(ae-Asp)-Hap copolymer was stable in neutral solutions but tend to be hydrolyzed under acidic condition, which was attributed to the acid-sensitive properties of hexahydrophthalic amides (β-carboxylic amides). MPEG-g-P(ae-Asp)-Hap copolymer with critical aggregation concentration of 0.166 mg·mL−1 could self-assemble into stable blank nanomicelles with an average particle hydrodynamic diameter of 98.1 nm, but the hydrodynamic diameter of doxorubicin-loaded nanomicelles (mPEG-g-P(ae-Asp)-Hap·Dox) was smaller and approximately 77.5 nm. MPEG-g-P(ae-Asp)-Hap·Dox nanomicelles showed sustained drug release profiles over 34 h, and the cumulative drug release showed a tendency to increase from 25% to 62% with the pH value decreasing from 7.4 to 5.0 due to the acid-triggered disassembly of nanomicelles. The cytotoxicity of mPEG-g-P(ae-Asp)-Hap·Dox nanomicelles against A549 treated with 40 mM NH4Cl (lysosomotropic weak bases) was decreased significantly than that without NH4Cl treatment, further confirmed the drug release from the nanomicelles was triggered by the low pH value of lysosome (pH 5.0). Compared with doxorubicin HCl, mPEG-g-P(ae-Asp)-Hap·Dox nanomicelle drug showed enhanced cellular uptake ability during 2 or 4 h of incubation due to the endocytosis mechanism of nanomicelle drug. In summary, the cleavage of pH-sensitive β-carboxylic amides bonds on the hydrophobic branch of mPEG-g-P(ae-Asp)-Hap copolymer triggered the disassembly of the nanomicelles and release of doxorubicin in the acidic lysosomal compartments of cancer cells. These nanomicelles exhibited excellent potential for drug delivery due to their smart properties-PEGylation, suitable size, and acid-triggered drug release.

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Warrier, Anup, and Arun Wilson. "Phylogenetic Analysis of Candida auris Isolates From Clinical Samples of Surgical Intensive Care Units." Infection Control & Hospital Epidemiology 41, S1 (October 2020): s349—s350. http://dx.doi.org/10.1017/ice.2020.965.

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Background: Between January and September of 2019, 15 patients acquired Candida auris infection in our surgical intensive care unit (SICU). Although the outbreak was controlled by enhancing horizontal measures and a change of the environmental disinfectant from a quaternary ammonium compound to a peroxide-based product; we wanted to understand whether patient-to-patient spread was occurring or the environment was the major contributor. Methods: We submitted all the 15 isolates from clinical samples for WGS and phylogenetic analysis; along with operation theater (OT) and ICU environment random swabs for metagenomic analysis. DNA sample QC DNA extraction was done using a Qiagen QiAmp DNA mini kit (cat. no. 51306). The DNA samples were subjected to QIAXPERT and Qubit for quantifying the amount of DNA in the extracted sample. Also, the 260/280-nm ratio was examined for the purity of the same. They were also subjected for agarose gel electrophoresis. For the DNA library prep protocol, whole-genome libraries were prepared from 21 samples using NEBNext Ultra IITM DNA Library Prep Kit (Cat. No: E7645L). The adapter sequences were added to the ends of DNA fragments to generate paired-end libraries. The resulting adaptor-ligated libraries were purified and index tags were added by amplification, followed by purification. Libraries were assessed to check the quality and quantity using Agilent 2200 Tape station (cat. no. 3-PM 863NA). For the sequencing protocol, prepared libraries were quantified using Qubit High Sensitivity reagent. The obtained libraries were diluted to final concentration of 2 nm in 10 µL and were subjected to cluster amplification. Once the cluster generation was completed, the flow cells were loaded on to the sequencer. Sequencing was carried out in Hi Seq X10 to generate 2X150-bp sequence reads at >100X sequencing depth (~1.5 Gb). A minimum of 75% of the sequenced bases were of Q30 value. Sequenced data were processed to generate FASTQ files and were uploaded on the FTP server for download and secondary data analysis. Results: Overall, 2% of the DNA from the OT and SICU environment showed Candida auris. The phylogenetic analysis confirmed 2 different clusters. Furthermore, 13 of the clinical isolates belonged to the same cluster, confirming that patient-to-patient transmission had occurred, which was subsequently confirmed by line listing the patients. Conclusions:Candida auris can efficiently spread from patient to patient, resulting in outbreaks. It can also persist in the healthcare environment causing ongoing propagation of these outbreaks.Funding: NoneDisclosures: None

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Xu, Kang, Xiaojun Liu, Leran Bu, Hena Zhang, Caihong Zhu, and Yuling Li. "Stimuli-Responsive Micelles with Detachable Poly(2-ethyl-2-oxazoline) Shell Based on Amphiphilic Polyurethane for Improved Intracellular Delivery of Doxorubicin." Polymers 12, no. 11 (November 10, 2020): 2642. http://dx.doi.org/10.3390/polym12112642.

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Polyurethanes (PUs) have various biomedical applications including controlled drug delivery. However, the incompletely release of drug at tumor sites limits the efficiency of these drug loaded polyurethane micelles. Here we report a novel polymer poly(2-ethyl-2-oxazoline)-SS-polyurethane-SS-poly(2-ethyl-2-oxazoline) triblock polyurethane (PEtOz-PU(PTMCSS)-PEtOz). The hydrophilic pH-responsive poly(2-ethyl-2-oxazoline) was used as an end-block to introduce pH responsiveness, and the hydrophobic PU middle-block was easily synthesized by the reaction of poly (trimethylene carbonate) diol containing disulfide bonds (PTMC-SS-PTMC diol) and bis (2-isocyanatoethyl) disulfide (CDI). PEtOz-PU(PTMCSS)-PEtOz could self-assemble to form micelles (176 nm). The drug release profile of PEtOz-PU(PTMCSS)-PEtOz micelles loaded with Doxorubicin (DOX) was studied in the presence of acetate buffer (10 mM, pH 5.0) and 10 mM dithiothreitol (DTT). The results showed that under this environment, DOX-loaded polyurethane micelles could release DOX faster and more thoroughly, about 97% of the DOX was released from the DOX-loaded PEtOz-PU(PTMCSS)-PEtOz micelle. In addition, fluorescent microscopy and cell viability assays validated that the DOX-loaded polyurethane micelle strongly inhibits the growth of C6 cells, suggesting their potential as a new nanomedicine against cancer.

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Koolen, Pieter G. L., Dylan Haas, Kuylhee Kim, Sharon Fox, Ahmed M. S. Ibrahim, Peter Kim, David L. Kaplan, and Samuel J. Lin. "Increased Osteoid Formation in BMP-2–Loaded Silk-Based Screws." Plastic and Reconstructive Surgery 137, no. 5 (May 2016): 808e—817e. http://dx.doi.org/10.1097/prs.0000000000002080.

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Goepel, Michael, Ruben Ramos, Roger Gläser, and David Kubička. "Novel Polymer–Silica Composite-Based Bifunctional Catalysts for Hydrodeoxygenation of 4-(2-Furyl)-3-Buten-2-One as Model Substance for Furfural–Acetone Aldol Condensation Products." Applied Sciences 9, no. 12 (June 14, 2019): 2438. http://dx.doi.org/10.3390/app9122438.

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Novel bifunctional metal-loaded polymer–silica composite (PSC) catalysts were investigated in the hydrodeoxygenation (HDO) of 4-(2-furyl)-3-buten-2-one (FAc) as a model substance for furfural–acetone aldol condensation products. PSC catalysts were synthesized via a sol–gel method with different polymer contents and subsequently doped with different noble metals. The product composition of the HDO of FAc could be tuned by using catalysts with different polymer (i.e., acidic properties) and metal content (i.e., redox properties), showing the great potential of metal-loaded PSC materials as tunable catalysts in biomass conversions with complex reaction networks. Furthermore, high yields (>90%) of the fully hydrodeoxygenated product (n-octane) could be obtained using noble metal-loaded PSC catalysts in only 8 h of reaction time.

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Shu, Tong, Qiming Shen, Yu Wan, Wei Zhang, Lei Su, Xueji Zhang, and Michael J. Serpe. "Silver nanoparticle-loaded microgel-based etalons for H2O2sensing." RSC Advances 8, no. 28 (2018): 15567–74. http://dx.doi.org/10.1039/c8ra02215a.

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Silver nanoparticle (AgNP)-loaded poly(N-isopropylacrylamide)-co-acrylic acid (pNIPAm-co-AAc)-based microgels were generated and used to make etalons. The etalons were shown to exhibit optical properties that depended on the concentration of H₂O₂in solution.

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Chen, Dar-Hao, Younho Rew, Anand Bajarang Tapase, and William Crockford. "Experimental study of base stabilization with fibrillated fiber." International Journal of Pavement Research and Technology 13, no. 6 (November 2020): 591–600. http://dx.doi.org/10.1007/s42947-020-6005-6.

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AbstractPotential benefits in applying polypropylene fiber to stabilize expansive soils and cement treated bases is already been reported in previous studies. So a critical need exists to incorporate the use of fiber into the Texas Department of Transportation’s (TxDOT’s) Guidelines for Modification and Stabilization of Soils and Base for Use in Pavement Structures. The present paper discusses the results collected from the first experimental test section on FM897 in the TxDOT Paris District. Three 500-ft (152.4m) test sections were constructed with 2 percent cement on FM897 in February 2020 in the north bound lane loaded truck direction which includes a new sandstone base, full depth reclamation (FDR), and control. However, only the new sandstone base and FDR sections were built with fiber. In this project, two types of fibers were used —(a) fibrillated fiber Fibermesh300, and (b) macro-synthetic fiber Enduro 600. The surface and base layers from the new sandstone base section were removed and used for the edge widening area of the FDR and control sections. Based on the laboratory tests, the optimum fiber contents were found to be 0.6 percent and 0.4 percent for a new sandstone base and FDR, respectively. The laboratory Unconfine Compression Strength (UCS) results showed significant improvements (<112.36 percent) when fibers were added to the sandstone base. To have better control, fiber and cement were manually distributed, following the US Army Corps of Engineers’ recommendations. Becaus e of unexpected construction equipment failure that caused compaction delays of approximately 5 hours, cement was in contact with moisture for approximately 5 hours before compaction. UCS results showed an approximate 55 percent reduction when there was a 5-hour delay from the time water was introduced (resulting in the start of the hydration process) until the time of compaction. It indicated that there are detrimental effects on UCS if there is delay on compaction. There were significant reductions on the normalized W1 deflections at 5 months after construction. In particular, the FDR and new sandstone base sections (with fiber) experienced over 52 percent reduction as compared to 1 week after construction FWD data. Furthermore, the averaged W1 deflections were lower than before construction for both FDR and new sandstone base sections (with fiber). This indicates that there were rapid increases in structural capacity and significant strength developed in the fiber sections between 1 week and 5 months. Further research is needed to explain the mechanism and phenomena.

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Jia, Zhi Fang, Fu Min Wang, Ying Bai, and Ning Liu. "Photocatalytic Reduction of CO₂ to Methanol Using the InVO₄-Based Photocatalysts." Advanced Materials Research 396-398 (November 2011): 2033–37. http://dx.doi.org/10.4028/www.scientific.net/amr.396-398.2033.

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The InVO4-based photocatalysts loaded with metal oxides (Fe2O3, CuO, NiO) were synthesized by wet impregnation method. The prepared samples were characterized by X-ray diffraction (XRD), scanning electron microscopy(SEM), UV-vis diffuse reflectance spectroscopy(DRS). The influence of different metal oxides loading (Fe2O3, CuO, NiO) on the photocatalytic activity for photocatalytic reduction of CO2 was discussed. It is found that Fe2O3-loaded InVO4 significantly enhance the methanol yield through promoting the effective separation of photoinduced electron-hole pairs.

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Pitilakis, Alexandros, and Emmanouil E. Kriezis. "Longitudinal 2 x 2 Switching Configurations Based on Thermo-Optically Addressed Dielectric-Loaded Plasmonic Waveguides." Journal of Lightwave Technology 29, no. 17 (September 2011): 2636–46. http://dx.doi.org/10.1109/jlt.2011.2162227.

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Tek, Daniel E., Miquel Poyatos-Moré, Marco Patacci, Adam D. McArthur, Luca Colombera, Timothy M. Cullen, and William D. McCaffrey. "Syndepositional tectonics and mass-transport deposits control channelized, bathymetrically complex deep-water systems (Aínsa depocenter, Spain)." Journal of Sedimentary Research 90, no. 7 (July 15, 2020): 729–62. http://dx.doi.org/10.2110/jsr.2020.38.

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ABSTRACT The inception and evolution of channels in deep-water systems is controlled by the axial gradient and lateral confinement experienced by their formative flows. These parameters are often shaped by the action of tectonic structures and/or the emplacement of mass-transport deposits (MTDs). The Arro turbidite system (Aínsa depocenter, Spanish Pyrenees) is an ancient example of a deep-water channelized system from a bathymetrically complex basin, deposited in an active tectonic setting. Sedimentologic fieldwork and geologic mapping of the Arro system has been undertaken to provide context for a detailed study of three of the best-exposed outcrops: Sierra de Soto Gully, Barranco de la Caxigosa, and Muro de Bellos. These locations exemplify the role of confinement in controlling the facies and architecture in the system. Sedimentologic characterization of the deposits has allowed the identification of fifteen facies and eight facies associations; these form a continuum and are non-unique to any depositional environment. However, architectural characterization allowed the grouping of facies associations into four depositional elements: i) weakly confined, increasing-to-decreasing energy deposits; ii) progradational, weakly confined to overbank deposits; iii) alternations of MTDs and turbidites; iv) channel fills. Different styles of channel architecture are observed. In Barranco de la Caxigosa, a master surface which was cut and subsequently filled hosts three channel stories with erosional bases; channelization was enhanced by quasi-instantaneous imposition of lateral confinement by the emplacement of MTDs. In Muro de Bellos, the inception of partially levee-confined channel stories was enhanced by progressive narrowing of the depositional fairway by tectonic structures, which also controlled their migration. Results of this study suggest that deep-water channelization in active tectonic settings may be enhanced or hindered due to: 1) flow interaction with MTD-margin topography or; 2) MTD-top topography; 3) differential compaction of MTDs and/or sediment being loaded into MTDs; 4) formation of megascours by erosive MTDs; 5) basin-floor topography being reset by MTDs. Therefore, the Arro system can be used as an analog for ancient subsurface or outcrop of channelized deposits in bathymetrically complex basins, or as an ancient record of deposits left by flow types observed in modern confined systems.

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Amato del Monte, Alessandro. "Seismic petrophysics: Part 2." Leading Edge 34, no. 6 (June 2015): 700–704. http://dx.doi.org/10.1190/tle34060700.1.

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In Part 1 of this tutorial in the April 2015 issue of TLE, we loaded some logs and used a data framework called Pandas to manage them. We made a lithology-fluid-class (LFC) log and used it to color a crossplot. This month, we take the workflow further with fluid-replacement modeling based on Gassmann's equation. This is just an introduction; see Wang (2001) and Smith et al. (2003) for comprehensive overviews.

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Zhang, W. J., B. G. Li, C. Zhang, X. H. Xie, and T. T. Tang. "Biocompatibility and membrane strength of C3H10T1/2 cell-loaded alginate-based microcapsules." Cytotherapy 10, no. 1 (2008): 90–97. http://dx.doi.org/10.1080/14653240701762372.

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Su, Yue, Peng Chen, Pengjian Wang, Jing Ge, Shi Hu, Yuxin Zhao, Gang Xie, Wenjie Liang, and Peng Song. "Pd-loaded SnO2 hierarchical nanospheres for a high dynamic range H2S micro sensor." RSC Advances 9, no. 11 (2019): 5987–94. http://dx.doi.org/10.1039/c8ra09156k.

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The sensitivity of Pd-loaded SnO₂ nanosphere sensor to H₂S gas: micro gas sensors based on Pd-loaded SnO₂ nanospheres have credible gas detection abilities down to 10 ppb and 4 orders of magnitude concentration detection ranges.

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Farhat, M., J. Munisami, M. Abdul-Niby, and M. Nahas. "A Compact Quint-Band Bandpass Filter Based on Stub-Loaded Resonators." Engineering, Technology & Applied Science Research 7, no. 3 (June 12, 2017): 1694–98. http://dx.doi.org/10.48084/etasr.1208.

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This paper presents a planar quant-band bandpass filter with a high out-of-band rejection. The filter is based on inter-coupled stub-loaded resonators, where pairs of resonators are electromagnetically coupled to each other and the feed lines. This results in excitation of passbands, where the first and the third passbands are generated by λ/4 stub-loaded resonators. The second and the fifth passbands are excited by λ/2 stub-loaded resonators. And the fourth passband is generated by λ/2 resonators. The proposed technique provides sufficient degree of freedom to control the center frequency and bandwidth of the five passbands. In addition, the seven transmission zeros created around the passbands results in a quant-band filter with high selectivity, sharp 3dB cut-off frequency, high isolation, and low passband insertion-loss. Design methodology and simulation results of the filter are provided.

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MIRSANEH, MEHDI, BEATA ZALINSKA, OLIVER P. LEISTEN, and IAN M. REANEY. "BISMUTH NIOBATE-BASED GLASS-CERAMICS FOR DIELECTRICALLY LOADED MICROWAVE ANTENNAS." Functional Materials Letters 01, no. 01 (June 2008): 25–30. http://dx.doi.org/10.1142/s179360470800006x.

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A castable, low melting temperature glass-ceramic system (30% Bi 2 O 3, 30% Nb 2 O 5, 30% B 2 O 3 and 10% SiO 2, in mol%) suitable for microwave applications is fabricated and characterized. Depending on heat treatment temperature, the glass ceramic exhibits permittivity, 15 ≤ ε r ≤ 41, temperature coefficient of resonant frequency of -160 ≤ τ f ≤ +100 MK -1 and microwave quality factor of 300 GHz ≤ Qf ≤ 15000 GHz . The highest Qf occurs at 960°C heat treatment with ε r = 15, τ f = -80 MK -1 and Qf = 15000 GHz . Applications are envisaged such as castable dielectrically-loaded antenna pucks, removing the need for complex ceramic processing.

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Sutrisno, Eka Mulya Alamsyah, Ginanjar Gumilar, Takashi Tanaka, and Masaaki Yamada. "Improved strength properties of LVL glued using PVAc adhesives with physical treatment-based Rubberwood (Hevea brasiliensis)." Open Agriculture 5, no. 1 (November 6, 2020): 711–25. http://dx.doi.org/10.1515/opag-2020-0072.

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AbstractThe properties of the laminated veneer lumber (LVL) composed of the boiled veneer of Rubberwood (Hevea brasiliensis) using polyvinyl acetate (PVAc) adhesives in various cold-pressing time and various conditioned time with loaded and unloaded were studied. Five-ply LVL was produced by boiling veneer at 100°C for 90 min as pretreatment and cold-pressing time at 12 kgf cm−2 for 1.5, 6, 18, and 24 h then conditioned at 20°C and 65% relative humidity (RH) with loaded (12 kgf cm−2) and unloaded for 7 days as physical treatment. Especially for the delamination test, the specimens were immersed at 70 ± 3°C for 2 h and dried in the oven at 60 ± 3°C for 24 h; then, the specimens were solidified at room temperature (20°C and 65% RH) with loaded (12 kgf cm−2) and unloaded for 7, 10, 12, and 14 days. To determine the performance of LVL, the density, moisture content (MC), delamination, modulus of elasticity (MOE), modulus of rupture (MOR), horizontal shear strength, and formaldehyde emission tests were conducted according to the Japanese Agricultural Standard (JAS 2008) for structural LVL. The MOE and MOR values were significantly influenced by the physical treatment, however, neither to horizontal shear strength nor to formaldehyde emission. The best performance of LVL has resulted from unloaded LVL with cold-pressed time for 18 h; the MOE and MOR values were 9,345.05 ± 141.61 N mm−2 and 80.67 ± 1.77 N mm−2, respectively. The best value of the horizontal shear strength was obtained from the LVL with 18 h cold-pressing time and conditioned with loaded (13.10 ± 1.47 N mm−2) and unloaded (12.23 ± 1.36 N mm−2). The percentage of delamination values decreased with an increase in the cold-pressing time and conditioning time. The lowest value of delamination (19.06%) was obtained from the LVL with 24 h cold-pressing time and conditioned with loaded for 14 days. Except the delamination test, all other properties fulfilled the JAS.

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Zhao, Tong, Fuguo Liu, Xiang Duan, Chunxia Xiao, and Xuebo Liu. "Physicochemical Properties of Lutein-Loaded Microcapsules and Their Uptake via Caco-2 Monolayers." Molecules 23, no. 7 (July 20, 2018): 1805. http://dx.doi.org/10.3390/molecules23071805.

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Lutein is one of the most important carotenoids that can be utilized in foods as a natural pigment and nutraceutical ingredient to improve eye health. However, its utilization is limited due to its poor solubility. Chemically, the highly unsaturated structure of lutein makes it extremely susceptible to light, oxygen, heat, and pro-oxidants and therefore easily oxidized, decomposed or dissociated. In this study, we aimed to imbed natural lutein to improve its storage stability and enhance its water dispersibility. As two commonly studied water-soluble and water-insoluble food-grade surfactants, lecithin and sodium caseinate (NaCas) were chosen as the wall materials, and lutein-loaded lecithin microcapsules and NaCas microcapsules were prepared, the results revealed the lutein-loaded NaCas microcapsules not only exhibited better solubility and stability than those of lutein-loaded lecithin microcapsules, but also were more stable when stored at 4 °C, 25 °C, 37 °C. Moreover, the lutein-loaded NaCas microcapsules were more easily absorbed by the intestinal Caco-2 cells than natural lutein. Considering the dispersibility, stability and cell absorption effect, the NaCas-based microparticle is a potential carrier for lutein.

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Zhang, Hongyuan, Changfa Guo, Jiabin Ren, Jiqiang Ning, Yijun Zhong, Ziyang Zhang, and Yong Hu. "Beyond CoOx: a versatile amorphous cobalt species as an efficient cocatalyst for visible-light-driven photocatalytic water oxidation." Chemical Communications 55, no. 93 (2019): 14050–53. http://dx.doi.org/10.1039/c9cc07835e.

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A versatile and efficient cocatalyst based on amorphous Co species (a-Co-E) is reported, and various Bi-based semiconductors loaded with a-Co-E exhibit impressively higher photocatalytic O₂ evolution activity than their CoO_x-loaded counterparts.

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Liu, Guan-Lin, Hsin-Wei Wu, Zheng-Ian Lin, Min-Gan Liao, Yu-Chia Su, Chih-Kuang Chen, and Bao-Tsan Ko. "Synthesis of functional CO2-based polycarbonates via dinuclear nickel nitrophenolate-based catalysis for degradable surfactant and drug-loaded nanoparticle applications." Polymer Chemistry 12, no. 9 (2021): 1244–59. http://dx.doi.org/10.1039/d0py01755h.

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Functional CO₂-based polycarbonates via efficient catalysis strategies using well-defined dinickel catalysts and their biomedical applications for the synthesis of drug-loaded nanoparticles were reported.

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Kida, Tetsuya, Hiroyuki Kurachi, Masayoshi Yuasa, Kengo Shimanoe, and Noboru Yamazoe. "Deposition of Pd onto SnO₂ Nanoparticles-Based Gas Sensors Using a Pd Complex as the Precursor." Advanced Materials Research 47-50 (June 2008): 1506–9. http://dx.doi.org/10.4028/www.scientific.net/amr.47-50.1506.

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The deposition of Pd nanoparticles onto thiol-functionalized SnO2 nanoparticles was carried out at the aqueous/organic liquid/liquid interface to prepare Pd-loaded SnO2 nanoparticles for high-sensitive sensor materials. The method is based on the self-assembly deposition of Pd onto dimercaptosucinic acid (DMSA)-functionalized SnO2 nanoparticles (mean diameter: 4 nm) prepared by a hydrothermal method. Pd nanoparticles of 2-3 nm in chloroform were prepared by thermal decomposition of a Pd complex at high temperature (170 °C). Thin film-type device using the prepared Pd-loaded SnO2 nanoparticles was fabricated and tested for its sensing properties.

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Peng, Yin, Lei Wang, Xiao Feng Jiang, Feng Ling Zhang, and Gui Xiang Xiao. "Vision-Based Deformation Measurement of Loaded Three-Ring Chain." Advanced Materials Research 490-495 (March 2012): 865–70. http://dx.doi.org/10.4028/www.scientific.net/amr.490-495.865.

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The deformation measurement of loaded Three-Ring Chains is of great significance for production safety. In this study, a machine vision system for measuring deformation of loaded Three-Ring chains is developed. The measuring system uses a back diffuse light illumination and a CMOS industrial camera. A measurement algorithm based on sub-pixel edge extraction, contour segmentation, contour fitting is designed. The system can measure the long axis length of outer diameter (OLL) of the each ring of loaded three-ring chains. For the visual system, the absolute error is 0.004 mm, the standard deviation is 0.0024 mm. For the whole system, the absolute error is less than 0.015 mm, the relative error to the full-length of chain is less than 0.25 ‰, the relative error to the total amount of the stretching deformation is less than 2‰.

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Li, Fei-Fei, Fu-Lin Chen, Huan Wang, Shi-Bin Yu, Ji-Hong Cui, Yin Ding, and Xue Feng. "Proteomics based detection of differentially expressed proteins in human osteoblasts subjected to mechanical stress." Biochemistry and Cell Biology 91, no. 2 (April 2013): 109–15. http://dx.doi.org/10.1139/bcb-2012-0021.

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Mechanical stress is essential for bone development. Mechanical stimuli are transduced to biochemical signals that regulate proliferation, differentiation, and cytoskeletal reorganization in osteoblasts. In this study, we used proteomics to evaluate differences in the protein expression profiles of untreated Saos-2 osteoblast cells and Saos-2 cells subjected to mechanical stress loading. Using 2-D electrophoresis, MALDI–TOF mass spectroscopy, and bioinformatics, we identified a total of 26 proteins differentially expressed in stress loaded cells compared with control cells. Stress loaded Saos-2 cells exhibited significant upregulation of 17 proteins and significant downregulation of 9 proteins compared with control cells. Proteins that were most significantly upregulated in mechanically loaded cells included those regulating osteogenesis, energy metabolism, and the stress response, such as eukaryotic initiation factor 2 (12-fold), mitochondrial ATP synthase (8-fold), and peptidylprolyl isomerase A (cyclophilin A)-like 3 (6.5-fold). Among the proteins that were significantly downregulated were those involved in specific signaling pathways and cell proliferation, such as protein phosphatase regulatory (inhibitor) subunit 12B (13.8-fold), l-lactate dehydrogenase B (9.4-fold), Chain B proteasome activator Reg (Alpha) PA28 (7.7-fold), and ubiquitin carboxyl-terminal esterase L1 (6.9-fold). Our results provide a platform to understand the molecular mechanisms underlying mechanotransduction.

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Yeole, K. V., I. P. Agarwal, and S. T. Mhaske. "The effect of carbon nanotubes loaded with 2-mercaptobenzothiazole in epoxy-based coatings." Journal of Coatings Technology and Research 13, no. 1 (October 9, 2015): 31–40. http://dx.doi.org/10.1007/s11998-015-9730-z.

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Li, Ying Hua, Chun Xin Dong, Ji Ying Zou, Hui Liu, Jing Hai Guo, and Wen Long Lu. "Influence of TiO₂ on Noble Metal Based Catalysts for Lean NO_x Reduction with CO." Applied Mechanics and Materials 675-677 (October 2014): 149–53. http://dx.doi.org/10.4028/www.scientific.net/amm.675-677.149.

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The performance of various noble metal based catalysts for the NOxreduction in the CO-rich conditions of simulated post Euro-IV diesel emissions at low temperature was investigated in this paper. Pd loaded catalyst showed higher catalytic activity than Ir or Rh loaded catalysts. Titania, as one of the support material, clearly promoted the deNOxprocess due to the synergy with alumina and Palladium. The TiO2loading was optimized subsequently. As a result, Pd/TiO2/Al2O3catalyst with Pd loading of 2.0 wt.% and TiO2loading of 10 wt.% showed the NOxconversions of 25~46% in the temperature range of 200~250°C.

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35

Kalinov, Kalin N., Milena G. Ignatova, Nevena E. Manolova, Nadya D. Markova, Daniela B. Karashanova, and Iliya B. Rashkov. "Novel antibacterial electrospun materials based on polyelectrolyte complexes of a quaternized chitosan derivative." RSC Advances 5, no. 67 (2015): 54517–26. http://dx.doi.org/10.1039/c5ra08484a.

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Novel antibacterial materials based on polyelectrolyte complexes of quaternized chitosan (TMCh) and poly(2-acrylamido-2-methylpropanesulfonic acid) or poly(acrylic acid) (PAA) were prepared by electrospinning. AgNPs were loaded in TMCh/PAA fibers.

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Deng, Xiao Feng, Yu Wen, Liang Wu Lin, Li Xiong, and Xiong Ying Miao. "Preparation, Characterization and Phototoxicity of Photosan-Loaded Hollow Silica Nanospheres for Photodynamic Therapy." Advanced Materials Research 622-623 (December 2012): 930–38. http://dx.doi.org/10.4028/www.scientific.net/amr.622-623.930.

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In this study, Photosan (PS) was loaded onto hollow silica nanospheres using one-step wet chemical-based synthetic route method. Polydispersive index of the Photosan-loaded hollow Silica Nanospheres (PS-loaded NSs) is 0.121±0.01. The photobiological activity of the PS-loaded NSs was evaluated on human cholangiocarcinoma QBC939 cells. Cells were incubated with free PS or PS-loaded NSs for 2 h and then washed with phosphate-buffered saline. Culture medium was added to the wells containing the cells. Finally, the cells were exposed to red light (630 nm) with a light dose of 10J/cm2. The cellular viability was determined after 24 h of incubation. PS-loaded NSs and free PS eliminated about 96.4%±2.0% and 54.7%±1.9% of QBC939 cells, respectively. The phototoxicity was time dependent up to 2 h and concentration dependent at 1-7.5 mg/l. The cells viability decreased with the increase of the light dose in the range of 5-15 J/cm2. In conclusion, PS-loaded NSs are the release systems that promise photodynamic therapy use.

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Imran, Mohammed, Ariful Rahaman, Aabid H. Shaik, and Mohammed R. Chandan. "Stability enhancement of highly loaded nano-clay-based flexible polyurethane foams using hollow glass microspheres." Journal of Cellular Plastics 56, no. 5 (March 26, 2020): 547–57. http://dx.doi.org/10.1177/0021955x20912203.

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Addition of fillers in polyurethane foams enhances the mechanical properties of polymeric foams. However, fillers can be loaded to a certain extent, as higher percentage of fillers in polymeric foam causes structural instability leading to the collapse of foam. In this article, we report the use of hollow glass microspheres as a possible co-filler which enables higher loading of nano-clay in flexible polyurethane foam. It has been observed that the structural and mechanical properties of nano-clay-loaded foams were found to cause instability at 5 wt% loading of nano-clay. Therefore, upon addition of hollow glass microspheres in 5 wt%, nano-clay-loaded polyurethane foam shows remarkable enhancement in terms of stability and mechanical properties of the resultant foams. A 100-fold increment in tensile strength has been observed for 2 wt% hollow glass microspheres and 5 wt% nano-clay-loaded flexible polyurethane foams as compared to conventional (unloaded) polyurethane foams.

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Sharifi, Farrokh, Apratim Jash, Alireza Abbaspourrad, and Syed S. H. Rizvi. "Generation of ironized and multivitamin-loaded liposomes using venturi-based rapid expansion of a supercritical solution (Vent-RESS)." Green Chemistry 22, no. 5 (2020): 1618–29. http://dx.doi.org/10.1039/c9gc04018h.

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Lee, Ki-Sun, Yu-Sung Jeon, Sang-Wan Shin, and Jeong-Yol Lee. "Effects of rhBMP-2 Loaded Titanium Reinforced Collagen Membranes on Horizontal Bone Augmentation in Dogs." BioMed Research International 2017 (2017): 1–8. http://dx.doi.org/10.1155/2017/7141296.

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The aim of this study was to evaluate the efficacy of growth factor loaded collagen membranes on new bone formation during horizontal bone augmentation. Mandibular defects (4 × 4 × 4 mm) were surgically prepared in six male beagle dogs, which were then protected with one of three types of membranes: (1) titanium mesh, (2) titanium reinforced collagen, or (3) rhBMP-2 loaded titanium reinforced collagen. Animals were euthanized 8 and 16 weeks after surgery, and nondecalcified specimens were prepared and histomorphologically investigated to determine the degree of osteogenesis. Data were analyzed with Friedman test. With respect to the degree of osteogenesis at earlier stage (8 weeks after surgery), there was significantly higher new bone ratio in rhBMP-2 loaded membrane group (p>0.05). However, with respect to the long-term results (16 weeks after surgery), there were no significant differences among the three membranes (p>0.05). Based on histomorphometric analysis, there were no significant differences in horizontal bone gaining ratio (p>0.05).

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Kizaloglu, Abdullah, Ebru Kilicay, Zeynep Karahaliloglu, Baki Hazer, and Emir Baki Denkbas. "The preparation of chitosan membrane improved with nanoparticles based on unsaturated fatty acid for using in cancer-related infections." Journal of Bioactive and Compatible Polymers 35, no. 4-5 (July 2020): 328–50. http://dx.doi.org/10.1177/0883911520943222.

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This study includes the design of a chitosan membrane decorated with unsaturated fatty acid–based carrier system for cancer treatment and antibacterial application. For this, polystyrene-graft-polyoleic acid-graft-polyethylene glycol was prepared by free radical polymerization and characterized. Nanoparticles and caffeic acid–loaded nanoparticles were prepared by solvent evaporation technique and optimized. The short-term stability of nanoparticles was investigated at 4°C. Drug encapsulation and loading efficiency were evaluated. The chitosan membrane and caffeic acid–loaded nanoparticles embedded into chitosan membrane were fabricated. The caffeic acid loaded nanoparticles embedded into chitosan membrane showed controlled release. The mechanical properties of all samples were investigated. The caffeic acid–loaded nanoparticles embedded into chitosan membranes indicated excellent antibacterial properties against the Escherichia coli and Staphylococcus aureus. The anticancer activity of all the samples was evaluated against SaOS-2 human primary osteogenic sarcoma and MC3T3-E1 pre-osteoblast cell lines by 3-[4,5-dimethylthiazol-2-yl]-2,5 diphenyl tetrazolium bromide assay, the flow cytometry and double staining methods. As a result, the designed carrier system showed great potential to cancer-associated infections treatment in bone cancer cases.

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Qi, Wentao, Kui Xie, Qingqing Qin, Qi Zhou, Yan Wang, Yong Zhang, and Yucheng Wu. "Efficient carbon dioxide electrolysis based on ceria cathode loaded with metal catalysts." Journal of Solid State Electrochemistry 18, no. 12 (July 15, 2014): 3415–25. http://dx.doi.org/10.1007/s10008-014-2572-2.

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Shalini, B., A. Ruban Kumar, and A. Mary Saral. "Synthesis of Pure Hydroxyapatite (Ca10(PO4)6(OH)2) by the Sol–Gel Method and the Antibiotic Loaded in the Presence of Natural Polymer for the Application of Drug Delivery." Advanced Science Letters 24, no. 8 (August 1, 2018): 5523–26. http://dx.doi.org/10.1166/asl.2018.12141.

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Hydroxyapatite (HAp) is the most widely accepted biomaterial for the repair and reconstruction of bone tissue defects. The current study is based on HAp was synthesized using sol–gel method. The drug was loaded in presence and absence of gelatin with pure HAp. Precursors like calcium nitrate tetrahydrate and diammonium hydrogen orthophosphate were used and ammonia solution was added to maintain the pH value at 10.5 throughout the reaction. The synthesized HAp, drug loaded HAp and drug loaded HAp with gelatin were characterized using PXRD, FTIR, SEM, Drug loading, drug release studies. Results shows that the average crystallite size of the prepared HAp and drug loaded HAp with gelatin are 30 to 60 nm and 100 to 300 nm respectively was calculated using PXRD and morphology of pure HAp and drug loaded HAp with polymer was found using SEM. Drug loading and release percentage was calculated.

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Shuina, E. D., I. S. Shchelik, and Yu L. Sebyakin. "SYNTHESIS AND PROPERTIES OF NEOGLYCOLIPIDS BASED ON 2-AMINO-2-HYDROXYMETHYLPROPANE-1,3-DIOL." Fine Chemical Technologies 12, no. 4 (August 28, 2017): 65–74. http://dx.doi.org/10.32362/2410-6593-2017-12-4-65-74.

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The use of TRIS derivatives as the kernels of branching fragments is a modern method of preparing carbohydrate-containing dendrimer-like amphiphiles. A scheme of the synthesis of derivatives of trivalent neoglycolipids with terminal residues of D-mannose and a branching component based on 2-amino-2-hydroxymethylpropene-1,3-diol (TRIS) differing in the degree of saturation of the hydrocarbon chains is developed. The preparation of the hydrophilic part of the target molecules was carried out with the use of the reaction of 1,3-dipolar cycloaddition followed by conjugation with the hydrophobic component according to the carbodiimide method with the addition of HOBt as a catalyst. Approaches to the formation of target designs - liposomes based on phosphatidylcholine and synthesized neoglycolipids - and their physical and chemical properties, such as the size of particles and stability are investigated. The activity of the obtained compounds in the composition of liposomes loaded with the antibiotic meropenem with respect to Escherichia coli strain is carried out. An opportunity of changing the profile of the action of a liposome sample containing neoglycolipids by choosing various methods of its preparation that is promising for further research in this direction is revealed.

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Diao, Kaidi, Yunpeng Huang, Minjie Zhou, Jicheng Zhang, Yongjian Tang, Shuxia Wang, Tianxi Liu, and Xudong Cui. "Selectively enhanced sensing performance for oxidizing gases based on ZnO nanoparticle-loaded electrospun SnO2 nanotube heterostructures." RSC Advances 6, no. 34 (2016): 28419–27. http://dx.doi.org/10.1039/c6ra03061k.

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In this work, we present gas sensors based on ZnO nanoparticle-loaded electrospun SnO₂ nanotube (ZnO/SnO₂) n–n heterostructures (HSs) synthesized by electrospinning combined with facile thermal decomposition.

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Karunarathne, Sumudu S., Dag A. Eimer, and Lars E. Øi. "Density, Viscosity and Free Energy of Activation for Viscous Flow of Monoethanol Amine (1) + H2O (2) + CO2 (3) Mixtures." Fluids 5, no. 1 (January 9, 2020): 13. http://dx.doi.org/10.3390/fluids5010013.

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Densities and viscosities of aqueous monoethanol amine (MEA) and CO2-loaded aqueous MEA are highly relevant in engineering calculations to perform process design and simulations. Density and viscosity of the aqueous MEA were measured in the temperature range of 293.15 K to 363.15 K with MEA mass fractions ranging from 0.3 to 1.0. Densities of the aqueous MEA were fitted for a density correlation. Eyring’s viscosity model based on absolute rate theory was adopted to determine the excess free energy of activation for viscous flow of aqueous MEA mixtures and was correlated by a Redlich–Kister polynomial. Densities and viscosities of CO2-loaded MEA solutions were measured in the temperature range of 293.15 K to 353.15 K with MEA mass fractions of 0.3, 0.4 and 0.5. The density correlation used to correlate aqueous MEA was modified to fit CO2-loaded density data. The free energy of activation for viscous flow for CO2-loaded aqueous MEA solutions was determined by Eyring’s viscosity model and a correlation was proposed to represent free energy of activation for viscous flow and viscosity. This can be used to evaluate quantitative and qualitative properties in the MEA + H2O + CO2 mixture.

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Suhartono, Edward, G. Soeharsono, and Danardono Agus Sumarsono. "DINAMIKA KENDARAAN JALAN LURUS 3 PADA GEROBAK LISTRIK PENGANGKUT SAMPAH KAPASITAS 2 m3." POROS 12, no. 1 (August 1, 2017): 18. http://dx.doi.org/10.24912/poros.v12i1.679.

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Abstract: A residential dump transport to a temporary garbage disposal medium using a human-powered dump cart is not humane. An electrical-powered propulsion system can be one of the eco-friendly system which can be implemented to the cart, thus substitutes the human’s role to do so. This propulsion is analyzed by using vehicle dynamic analysis. Vehicle dynamic analysis which is conducted, discuss tractive effort which overcomes resistances during vehicle’s movement and accelerates the vehicle, and specification of drive train, used to drive it. Based on analytical result, it is obtained an electric dump cart model which can move at a 25 km/h maximum velocity, 20° maximum inclination while it is empty loaded, and 10° maximum inclination while it is fully loaded.

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Yu, Long, Can He, Qutong Zheng, Lixiang Feng, Li Xiong, and Yuxiu Xiao. "Dual Eu-MOFs based logic device and ratiometric fluorescence paper microchip for visual H2O2 assay." Journal of Materials Chemistry C 8, no. 10 (2020): 3562–70. http://dx.doi.org/10.1039/c9tc06915a.

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A dual Eu-MOFs based ratiometric fluorescent H₂O₂ sensor and an advanced logic device were designed. An MOFs-loaded paper microchip was also fabricated for the visual H₂O₂ assay in μL-samples, coupled with a smartphone-based visual device.

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Kudish, Ilya I., Sergey S. Volkov, Andrey S. Vasiliev, and Sergey M. Aizikovich. "Lubricated point heavily loaded contacts of functionally graded materials. Part 2. Lubricated contacts." Mathematics and Mechanics of Solids 23, no. 7 (May 8, 2017): 1081–103. http://dx.doi.org/10.1177/1081286517704690.

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The paper presents a study of the effectiveness of functionally graded materials in heavily loaded point elastohydrodynamically lubricated contacts with straight lubricant entrainment. As part of the study, some criteria of coating effectiveness are introduced and discussed. The approach used for achieving this goal is based on the recently developed asymptotic solution method for steady isothermal elastohydrodynamically lubricated problems of heavily loaded point contacts, as well as on a semi-analytical method for the solutions of contact problems for elastic functionally graded materials without the presence of lubrication in the contacts (dry contacts). For line elastohydrodynamically lubricated contacts such a problem has already been studied. The solution process can be subdivided into two stages: the solution of the contact problems for dry contacts and a solution of the problem for lubricated contacts. The solution of dry contact problems for functionally graded materials is described in detail in Part 1 of the paper. As in the case of homogeneous contact materials in the analysis of the elastohydrodynamically lubricated problem for functionally graded elastic materials, it is shown that the whole contact region can be subdivided into three subregions: the central one which is adjacent to the other two regions occupied by the ends of the zones. The central region can be subdivided into the Hertzian region and adjacent to it the inlet and exit zones which, in turn, are adjacent to the inlet and exit boundaries of the contact, respectively. In the Hertzian region the elastohydrodynamically lubricated problem solution is very close to the solution of the corresponding dry (i.e. non-lubricated) contact problem for functionally graded elastic materials which have been analyzed in Part 1 of the paper. In the central region in the inlet and exit zones of the heavily loaded point elastohydrodynamically lubricated contact, the elastohydrodynamically lubricated problem for functionally graded elastic materials using certain similarity transforms can be reduced to asymptotically valid equations identical to the ones obtained in the inlet and exit zones of the heavily loaded line elastohydrodynamically lubricated contacts for homogeneous elastic materials. Therefore, many of the well known properties of heavily loaded line elastohydrodynamically lubricated contacts for homogeneous elastic materials are also valid for heavily loaded point elastohydrodynamically lubricated contacts for functionally graded elastic materials. These asymptotically valid equations can be analyzed and numerically solved based on stable methods using a specific regularization approach which was developed for lubricated line contacts. Also, this asymptotic analysis leads to the easy analytical derivation of equations for the lubrication film thickness which take into account the inhomogeneity of the elastic materials. As a result of this analysis, criteria for an increase in lubrication film and friction force reduction are proposed. These criteria depend on lubricant properties, as well as the properties of functionally graded elastic materials involved in lubricated contacts.

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Niamsa, N., M. Srisa-ard, Y. Srisuwan, N. Kotsaeng, Y. Baimark, N. Narkkong, and W. Simchuer. "Preparation and Drug Release Studies of Chitosan/Methoxy Poly(Ethylene Glycol)-b-Poly(D,L-Lactide-co-Glycolide) Nanocomposite Films for Use as Controlled Release Drug Delivery." Advanced Materials Research 55-57 (August 2008): 717–20. http://dx.doi.org/10.4028/www.scientific.net/amr.55-57.717.

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Nanocomposite chitosan-based films incorporated with drug-loaded methoxy poly(ethylene glycol)-b-poly(D,L-lactide-co-glycolide) diblock copolymers (MPEG-b-PDLLG) nanoparticles were prepared by forming drug-loaded nanoparticles in chitosan solution before suspension-solution film casting. Salicylic acid was used as a poorly-water soluble model drug. The nanocomposite films with DLL/G ratios of 100/0 and 85/15 mol% and chitosan/diblock copolymer/drug ratios of 80/1/1, 80/2/2 and 80/4/4 (w/w) were prepared and investigated. The sizes of drug-loaded nanoparticles into the chitosan films were approximate or less than 100 nm. Nanopores were observed in the resulted chitosan films incorporated with drug-loaded nanoparticles when the diblock copolymer ratio was increased up to 2. Number and size of the nanopores increased as increasing the diblock copolymer ratio. Only the nanocomposite films with chitosan/diblock copolymer/drug ratio of 80/1/1 (w/w) showed slower drug release than the chitosan film.

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Wang, YueKe, XiaoRong Hong, Tian Sang, and GuoFeng Yang. "Tunable 1 × 2 plasmonic splitter of dielectric-loaded graphene waveguide based on multimode interference." Applied Physics Express 9, no. 12 (November 7, 2016): 125102. http://dx.doi.org/10.7567/apex.9.125102.

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Journal articles on the topic 'Bases Loaded 2'

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