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Journal articles on the topic 'Synthetic gel'

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Published: 5 June 2025

Last updated: 1 August 2025

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1

Fabiani, Verry Andre. "SINTESIS DAN KARAKTERISASI SILIKA GEL DARI LIMBAH KACA SERTA APLIKASINYA PADA KROMATOGRAFI KOLOM." Indonesian Journal of Pure and Applied Chemistry 1, no. 1 (2018): 10. http://dx.doi.org/10.26418/indonesian.v1i1.26038.

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Silica gel synthesis from glass waste have been carried out with activation and purification method by using hydrochloride acid. Hydrochloride acid were varied 8 N, 10 N, and 12 N to observe optimum concentration in purification of silica gel and component separation in chromatography column. Gravimetric analysis result showed 12 N hydrochloride acid produce ~100 % silica. XRD and FTIR analysis revealed that synthetic gel silica was amorphous where its IR absorption bands were at 3426 cm-1, 1620 cm-1, 1080 cm-1, 772 cm-1 and 478 cm-1. The absorption bands agreed to standard gel silica and spec

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2

Tuan, Ta Anh, Elena V. Guseva, Nguyen Anh Tien та ін. "Hydrothermal assisted conventional sol-gel method for synthesis of bioactive glass 70S30Cы". Kondensirovannye sredy i mezhfaznye granitsy = Condensed Matter and Interphases 23, № 4 (2021): 585–93. http://dx.doi.org/10.17308/kcmf.2021.23/3678.

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Bioactive glasses (Bioglasses) are widely synthesized by the conventional sol-gel method consisting of two main steps for sol and gel formation. However, the conversion from sol to gel requires a long time (5–7 days). In this study, the hydrothermal system was used to quickly synthesize the bioactive glass by reducing the conversion time from sol to gel. The hydrothermal assisted conventional sol-gel method was applied for synthesis of the bioactive glass 70SiO2–30CaO (mol%) (noted as 70S30C). The synthetic glass was investigated by the physical-chemical techniques. The ‘‘in vitro’’ experiment

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3

D., K. Sharma, Verma Sunita, Sharma Pankaj, and Tomar Radha. "Studies on the sorption of znII on the synthetic gel sodium potassium fluorophlogopite." Journal of Indian Chemical Society Vol. 83, Apr 2006 (2006): 405–8. https://doi.org/10.5281/zenodo.5837167.

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School of Studies in Chemistry, Jiwaji University, Gwalior-474 011. Madhya Pradesh. India E-mail: radha_tomar11 @yahoo.co.in <em>Manuscript received 11 June 2004, revised 26 September 2005. accepted 26 October 2005</em> Sorption of Zn<sup>II</sup> has been studied on the synthesized gel, sodium potassium fluorophlogopite ]Na<sub>0.5</sub>Kn<sub>0.5</sub>Mg<sub>3</sub>(Si<sub>3</sub>AIO<sub>10</sub>) F<sub>2</sub>.6H<sub>2</sub>O] (SPFP) at pH 2, 4 and 7. The effect of parameters like equilibration time (0.5-24.0 h), weight of the exchanger (30-150mg) and temperature (25-45 °C) have be

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Xie, Yi Hui, Yan Hua Ding, Wen Qin Liu, Wen Ting Bai, and Li Ping Huang. "Microwave Assisted Synthesis of Quercetin-Selective MIPs Grafted on Silica Gel Surface." Advanced Materials Research 1120-1121 (July 2015): 608–14. http://dx.doi.org/10.4028/www.scientific.net/amr.1120-1121.608.

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The silica gel surface was alkylated by silane coupling agent KH-570 under the microwave assisted and orthogonal experiment was adopted to optimize the silica gel surface silanized experimental conditions with synthetic yield as index. With quercetin as the template molecule, 4 - vinyl pyridine as the functional monomer, ethylene glycol dimethyl acrylate as the cross linking agent, azodiisobutyronitrile as initiator, under the microwave assisted in silane silicone surface quercetin molecularly imprinted polymer was successfully synthesized. Take selected quercetin as index, another orthogonal

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5

Terzuoli, L., C. Felici, I. Ciari, et al. "Synthetic Gel of Carotid Artery Plaque." International Journal of Immunopathology and Pharmacology 20, no. 3 (2007): 637–42. http://dx.doi.org/10.1177/039463200702000322.

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Atherosclerosis is a complex disease that affects medium and large arteries, leading to the formation and progression of plaque. In this process the proteins play an essential role and as a consequence, proteomic-based strategies examining the protein content of cells or tissues could offer a useful approach for the study of plaque proteins. Due to the heterogeneous cell composition of plaque, proteome analysis of whole lesions is difficult, besides being also complicated by the presence of plasma proteins that cannot be completely eliminated. A good way to study variations in protein expressi

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6

Ayodeji, Precious-Ayanwale, Donohué-Cornejo Alejandro, Carlos CuevasGonzález Juan, Francisco Espinosa-Cristóbal León, and Yobanny Reyes-López Simón. "REVIEW OF THE SYNTHESIS, CHARACTERIZATION AND APPLICATION OF ZIRCONIA MIXED METAL OXIDE NANOPARTICLES." International Journal of Research - Granthaalayah 6, no. 8 (2018): 136–45. https://doi.org/10.5281/zenodo.1403844.

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There has been different synthetic route used for the synthesis of zirconia mixed metal oxide nanoparticles. The different synthetic methods coupled with other factors like concentration, PH, type of precursor used etc help to synthesize zirconia mixed metal oxide nanoparticles having different physicochemical properties. This paper discusses the different synthetic routes of sol-gel, hydrothermal and coprecipitation method for the formation of zirconia in combination with other metal oxide to form zirconia mixed metal oxide nanoparticles, the physicochemical properties of the synthesized zirc

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Serafim, Andrada, Daniela G. Petre, Lavinia Moraru, et al. "Gelatin-PVP Hydrogels with Potential Skin Grafts Applications." Key Engineering Materials 638 (March 2015): 38–46. http://dx.doi.org/10.4028/www.scientific.net/kem.638.38.

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This work presents the synthesis and characterization of natural-synthetic hydrogels based on gelatin (Gel) and polyvinylpyrrolidone (PVP), with potential for skin grafts applications. The natural component, Gel insures the biocompatibility and biodegradability of the bicomponent system [1], while the synthetic counterpart, PVP, is a physiologic inert component, extensively used in medicine due to its water affinity and due to its capacity of confer elasticity to films and membranes with potential applications in skin grafts [2]. The obtained hydrogels were subjected to morpho-structural analy

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8

Horton, J. Stephen, and Paul A. Horgen. "Synthesis of an antheridiol-inducible polypeptide during sexual morphogenesis of Achlya ambisexualis E87." Canadian Journal of Biochemistry and Cell Biology 63, no. 5 (1985): 355–65. http://dx.doi.org/10.1139/o85-052.

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Changes in in vivo polypeptide synthetic patterns during sexual morphogenesis of Achlya ambisexualis E87 were investigated using polyacrylamide gel electrophoresis. Autoradiography of [35S]methionine-labelled polypeptides revealed the apparent qualitative synthesis of a 64 000 dalton polypeptide, commencing 30–60 min after antheridiol addition and continuing for at least 6 h. Synthesis of this pheromone-inducible polypeptide was detected throughout male sexual morphogenesis in still culture matings of the male strain E87 and the female strain 734. Two other species of Achlya were also found to

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Culver, Sean P., and Richard L. Brutchey. "Lanthanide-activated scheelite nanocrystal phosphors prepared by the low-temperature vapor diffusion sol–gel method." Dalton Transactions 45, no. 45 (2016): 18069–73. http://dx.doi.org/10.1039/c6dt03382b.

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The high degree of synthetic flexibility inherent to the vapor diffusion sol–gel method has enabled the synthesis of a CaWO<sub>4</sub>:(Eu,Tb) dual-sensitized white light emitting nanocrystal phosphor.

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Hua, Zikai, Mindie Hu, Yiwen Chen, Xiuling Huang, and Leiming Gao. "Investigation of the Friction Properties of a New Artificial Imitation Cartilage Material: PHEMA/Glycerol Gel." Materials 16, no. 11 (2023): 4023. http://dx.doi.org/10.3390/ma16114023.

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The absence of artificial articular cartilage could cause the failure of artificial joints due to excessive material wear. There has been limited research on alternative materials for articular cartilage in joint prostheses, with few reducing the friction coefficient of artificial cartilage prostheses to the range of the natural cartilage friction coefficient (0.001–0.03). This work aimed to obtain and characterize mechanically and tribologically a new gel for potential application in articular replacement. Therefore, poly(hydroxyethyl methacrylate) (PHEMA)/glycerol synthetic gel was developed

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O., P. Shrivastava, and Shrivastava Rashmi. "Cesium uptake studies on synthetic (KMg3(Si3AIO 10)OH2) gel and ordinary portland cement admixture." Journal of Indian Chemical Society Vol. 80, Jun 2003 (2003): 642–44. https://doi.org/10.5281/zenodo.5839858.

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Department of Chemistry, Dr. H. S. Gour Vishwavidyalaya, Sagar-470 003, India <em>E-mail:</em> satishrs_sgr@sancharnet.in    dr-ops 11@rediffmaiI. com <em>Manuscript received 5 November 2001, revised 19 August 2002, accepted 21 January 2003</em> Cesium uptake studies have been carried out on synthetic hydrogel having composition of minaral phlogopite and ordinaray portland cement (OPC) admixture at room temperature. Selectivity of the gel-OPC admixture for Cs<sup>+</sup> has been examined in presence of 1000 times concentrated solution of competing cations: Na<sup

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Bel-Hadj-Tahar, Radhouane, Mohamed Abboud, Mohd Shkir, et al. "Novel Sol-Gel Synthesis of Spherical Lead Titanate Submicrometer Powders." Crystals 11, no. 5 (2021): 484. http://dx.doi.org/10.3390/cryst11050484.

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In this study, a novel and simple synthetic sol-gel procedure was established to directly prepare spherical lead titanate powders without prior synthesis/usage of spherical templates such as TiO2 particles. Isotropic submicron particles with a mean diameter of 1–4 μm were prepared in this way. This synthetic process takes advantage of acetone as a stabilizing ligand and autogenous pressure generated in the autoclave during the reaction. The influence of various experimental factors (nature of the ligand, thermal treatment mode, and post-calcining temperature) as well as the formation mechanism

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13

Carbajal-De la Torre, G., N. N. Zurita-Mendez, M. A. Espinosa-Medina, A. B. Martinez-Valencia, and A. Sanchez-Castillo. "Synthesis of Synthetic Hematite with Substituted Aluminum by Sol-Gel Method." Materials Science Forum 793 (May 2014): 119–25. http://dx.doi.org/10.4028/www.scientific.net/msf.793.119.

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In this work, synthetic hematite with isomorphically substituted aluminum contents were obtained by the sol-gel chemical synthesis. Nanomaterials with Fe and Al contains were obtained by the sol-gel method mixing stoichiometric mixtures of ferric chloride (FeCl3) and aluminum isopropoxide Al (OC3H7)3at 75°C. The obtained sol-gel was dried at 60 oC followed by calcinations at 400, 800 and 1100 oC. The resulting powders were characterized by X-Ray diffraction and Scanning Electron Microscopy (SEM). Preliminary results showed α-Fe2O3particles into amorphous Al-O-Fe structure, and the formation of

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Ayanwale, Ayodeji Precious, Alejandro Donohué Cornejo, Juan Carlos Cuevas González, León Francisco Espinosa Cristóbal, and Simón Yobanny Reyes López. "REVIEW OF THE SYNTHESIS, CHARACTERIZATION AND APPLICATION OF ZIRCONIA MIXED METAL OXIDE NANOPARTICLES." International Journal of Research -GRANTHAALAYAH 6, no. 8 (2018): 136–45. http://dx.doi.org/10.29121/granthaalayah.v6.i8.2018.1407.

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There has been different synthetic route used for the synthesis of zirconia mixed metal oxide nanoparticles. The different synthetic methods coupled with other factors like concentration, PH, type of precursor used etc help to synthesize zirconia mixed metal oxide nanoparticles having different physicochemical properties. This paper discusses the different synthetic routes of sol-gel, hydrothermal and coprecipitation method for the formation of zirconia in combination with other metal oxide to form zirconia mixed metal oxide nanoparticles, the physicochemical properties of the synthesized zirc

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15

Zayat, Marcos, and David Levy. "How Can Sol-Gel Contribute to Optical Devices?" Key Engineering Materials 391 (October 2008): 97–107. http://dx.doi.org/10.4028/www.scientific.net/kem.391.97.

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We emphasize in this chapter the Sol-Gel chemistry, which has gained a large number of researchers, developing interesting and sophisticated novel synthetic methods, offering a variety of approaches to new systems preparation, overcoming many of the synthetic difficulties of the past. A strong argument for using the Sol-Gel chemistry is found in the high flexibility of the method and the large choice of commercially available “dopants” that can be incorporated in the solid matrices, that might have a specific activity or reactivity to an external signal (i.e. light, magnetic, electrical, etc).

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Erigoni, Andrea, and Urbano Diaz. "Porous Silica-Based Organic-Inorganic Hybrid Catalysts: A Review." Catalysts 11, no. 1 (2021): 79. http://dx.doi.org/10.3390/catal11010079.

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Hybrid organic-inorganic catalysts have been extensively investigated by several research groups in the last decades, as they allow combining the structural robust-ness of inorganic solids with the versatility of organic chemistry. Within the field of hybrid catalysts, synthetic strategies based on silica are among the most exploitable, due to the convenience of sol-gel chemistry, to the array of silyl-derivative precursors that can be synthesized and to the number of post-synthetic functionalization strategies available, amongst others. This review proposes to highlight these advantages, firs

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Erigoni, Andrea, and Urbano Diaz. "Porous Silica-Based Organic-Inorganic Hybrid Catalysts: A Review." Catalysts 11, no. 1 (2021): 79. http://dx.doi.org/10.3390/catal11010079.

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Hybrid organic-inorganic catalysts have been extensively investigated by several research groups in the last decades, as they allow combining the structural robust-ness of inorganic solids with the versatility of organic chemistry. Within the field of hybrid catalysts, synthetic strategies based on silica are among the most exploitable, due to the convenience of sol-gel chemistry, to the array of silyl-derivative precursors that can be synthesized and to the number of post-synthetic functionalization strategies available, amongst others. This review proposes to highlight these advantages, firs

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18

Sugiarti, Sri, Charlena Charlena, and Nurul Afiati Aflakhah. "Zeolit Sintetis Terfungsionalisasi 3-(Trimetoksisilil)-1-Propantiol sebagai Adsorben Kation Cu(II) dan Biru Metilena." Jurnal Kimia VALENSI 3, no. 1 (2017): 11–19. http://dx.doi.org/10.15408/jkv.v3i1.5144.

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The more commonly used method for making synthetic zeolite from kaolin is hydrothermal method. This research tested a sol-gel method in processing synthetic zeolit using kaolin as the basic ingrediant. The synthetic zeolite derived from the sol-gel method was then characterized using X-ray Difractometer and Scanning Electron Microscope, which found resulting products zeolite-A, zeolite Y and sodalite. The adsorption ability of the synthetic zeolites was tested using Cu(II) and methylene blue. Functionalization of the synthetic zeolites by 3-(trimetoksisilil)-1-propantiol was done to increase a

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Krüger, M. E., V. Thome, H. Hilbig, M. Kaliwoda, and D. Heinz. "Investigations on alkali-silica reaction products using Raman spectroscopy." Materiales de Construcción 72, no. 346 (2022): e281. http://dx.doi.org/10.3989/mc.2022.15621.

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The alkali-silica reaction (ASR) remains a major challenge regarding the durability of concrete structures. The reaction mechanism is not sufficiently understood owing to the difficulty in characterizing the structure of the alkali-silica reaction gel (ASR gel) in concrete. Synthetic ASR gels with different compositions, i.e. Na/Si and Ca/Si molar ratios, were synthesized and analysed by Raman spectroscopy and, for comparison, 29Si NMR spectroscopy. The results show that higher Na/Si ratios increase the number of non-bridging oxygens in the gel structure, thus leading to a decrease in the degr

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Guidry, C., and M. Hook. "Endothelins produced by endothelial cells promote collagen gel contraction by fibroblasts." Journal of Cell Biology 115, no. 3 (1991): 873–80. http://dx.doi.org/10.1083/jcb.115.3.873.

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Endothelial 1 (E1) is identified as an endothelial cell secreted factor that stimulates collagen gel contraction by fibroblasts. This identification is based on (a) co-localization of stimulatory activity in endothelial cell conditioned media with synthetic E1 in reversed phase analysis; (b) removal of the activity from conditioned media with antiserum directed against E1; and (c) the activity of synthetic E1. Treatment of endothelial cell conditioned media with immobilized anti-E1 antibodies removed 59% of the activity from the pool suggesting that E1 is the major contraction promoter in endo

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Rohand, Taoufik, and Kiyoshi Tanemura. "Catalysis, Kinetic and Mechanistical Studies for the Transformation of Ethylene Glycol by Alumina and Silica Gel under Autogenous Pressure and Solvent-free Conditions." Acta Chimica Slovenica 68, no. 2 (2021): 387–94. http://dx.doi.org/10.17344/acsi.2020.6422.

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A kinetic and mechanistical studies of the new pathway for competitive transformation of ethylene glycol by alumina and silica gel have been described. Commercial alumina (Al com), synthetic alumina (Al syn), commercial silica gel (Si com) and synthetic silica gel (Si syn) were used for the transformation of ethylene glycol to a mixture of diethylene glycol, 1,4-dioxane and 2-methyl-1,3-dioxolane via acetaldehyde by heating at 150 °C under autogenous pressure without solvent. The results show that the yield of these three products strongly depends on the nature of the used catalyst and the rea

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Esposito, Serena. "“Traditional” Sol-Gel Chemistry as a Powerful Tool for the Preparation of Supported Metal and Metal Oxide Catalysts." Materials 12, no. 4 (2019): 668. http://dx.doi.org/10.3390/ma12040668.

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The sol-gel method is an attractive synthetic approach in the design of advanced catalytic formulations that are based on metal and metal oxide with high degree of structural and compositional homogeneity. Nowadays, though it originated with the hydrolysis and condensation of metal alkoxides, sol-gel chemistry gathers plenty of fascinating strategies to prepare materials from solution state precursors. Low temperature chemistry, reproducibility, and high surface to volume ratios of obtained products are features that add merit to this technology. The development of different and fascinating pr

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Navas, Daniel, Sandra Fuentes, Alejandro Castro-Alvarez, and Emigdio Chavez-Angel. "Review on Sol-Gel Synthesis of Perovskite and Oxide Nanomaterials." Gels 7, no. 4 (2021): 275. http://dx.doi.org/10.3390/gels7040275.

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Sol-Gel is a low cost, well-established and flexible synthetic route to produce a wide range of micro- and nanostructures. Small variations in pH, temperature, precursors, time, pressure, atmosphere, among others, can lead to a wide family of compounds that share the same molecular structures. In this work, we present a general review of the synthesis of LaMnO3, SrTiO3, BaTiO3 perovskites and zinc vanadium oxides nanostructures based on Sol-Gel method. We discuss how small changes in the parameters of the synthesis can modify the morphology, shape, size, homogeneity, aggregation, among others,

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Tománková, Zuzana, Pavel Matějka, Karel Volka, and Vladimír Král. "FT Raman Spectroscopy as a Tool for Characterization of Derivatized Silica Gel Sorbents." Collection of Czechoslovak Chemical Communications 70, no. 2 (2005): 168–77. http://dx.doi.org/10.1135/cccc20050168.

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The potential of Fourier-transform (FT) Raman spectroscopy for verification of individual steps of synthesis of new chromatographic stationary phases was studied. 3-Aminopropylated silica gel was modified with two different optically active compounds ((+)-cloprostenol, (+)-(R)-2,2'-dihydroxy-1,1'-binaphthalene-3-carboxylic acid) via amide bonds. In the next step, free silanol groups were protected with trimethylsilyl groups. The FT Raman spectroscopic results compared with the data obtained by elemental analysis enable not only qualitative verification of synthetic steps, but also a semiquanti

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Ohsedo, Yutaka, Masashi Oono, Kowichiro Saruhashi, Hisayuki Watanabe, and Nobuyoshi Miyamoto. "New composite thixotropic hydrogel composed of a polymer hydrogelator and a nanosheet." Royal Society Open Science 4, no. 12 (2017): 171117. http://dx.doi.org/10.1098/rsos.171117.

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A composite gel composed of a water-soluble aromatic polyamide hydrogelator and the nanosheet Laponite®, a synthetic layered silicate, was produced and found to exhibit thixotropic behaviour. Whereas the composite gel contains the gelator at the same concentration as the molecular gel made by the gelator only, the composite gel becomes a softer thixotropic gel compared to the molecular gel made by the gelator only. The reason for this could be that bundles of polymer gelator may be loosened and the density of the polymer network increased in the presence of Laponite.

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Nuryono, Nuryono, and Narsito Narsito. "EFFECT OF ACID CONCENTRATION ON CHARACTERS OF SILICA GEL SYNTHESIZED FROM SODIUM SILICATE." Indonesian Journal of Chemistry 5, no. 1 (2010): 23–30. http://dx.doi.org/10.22146/ijc.21834.

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In this research, synthesis and characterization of silica gel from sodium silicate through sol-gel process using H2SO4, HCl, and citric acid have been investigated. Synthesis was carried out by mixing and stirring 20 mL of H2SO4, HCl or citric acid at certain concentration with 50 mL of sodium silicate solution (Na2O 0.17 M and SiO2 0.61 M) for one hour and let to form gel. The gel was washed with distillated water, and dried in an oven at 100 oC. Characterization of silica gel was carried out by determination of acidity, water adsorption capacity, and water content. Identification of functio

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PAYAL, S. CHOUDHARI, and V. Y. KARADBHAJNE DR. "MODIFICATION AND UTILIZATION OF RICE BRAN FATTY ACID IN COSMETICS." IJIERT - International Journal of Innovations in Engineering Research and Technology 5, no. 6 (2018): 74–80. https://doi.org/10.5281/zenodo.1445920.

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<strong>The field of cosmetics is gaining huge importance in the present days. The conventional methods of preparations need some modification in order to fulfill the requirements of the society. Waxes have always been a primary ingredient of the cosmetic preparations. Natural and synthetic waxes are used since a long period of time. This study aims to investigate the modification of rice bran fatty acid and its usage in cosmetics preparations. Rice bran gel is a by - product generated during the refining of rice bran fatty acid . In this work Rice bran gel was purified processed and was analy

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Roik, N. V., I. M. Trofymchuk, L. O. Belyakova, and O. I. Oranska. "Hybrid template directed hydrothermal synthesis of MCM-41 silicas with surface silanol and 3-chloropropyl groups." Himia, Fizika ta Tehnologia Poverhni 14, no. 4 (2023): 464–73. http://dx.doi.org/10.15407/hftp14.04.464.

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Silicas of MCM-41‑type with reactive functional groups are widely used as starting substrates in large variety of post‑synthetic chemical modification pathways. Therefore, variation of their structural characteristics in the process of templated sol‑gel synthesis or post-synthetic treatment is of great importance. The aim of this work was to elucidate the influence of template agent selection on structural features of MCM-41‑type materials with surface silanol and 3‑chloropropyl groups. For this purpose, template-assisted sol-gel condensation of structure forming silanes (tetraethyl orthosilic

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Xue, Hong Dan, Fu Li Wang, Guo Li Li, Pu Liu, Yong Qing Bai, and Ke Wang. "Synthesis Method and its Influence Factors of Hydrotalcite-Like Compounds." Advanced Materials Research 690-693 (May 2013): 351–54. http://dx.doi.org/10.4028/www.scientific.net/amr.690-693.351.

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Hydrotalcite-like compounds are a class of anionic lays or layed double hydroxiods (LDHs) which consists of alkalescence, anion-exchanges and memory effect. The synthetic methods of LDHs include coprecipitation, hydrothermal synthesis, mirowave radiation, ion exchange, sol-gel method, roasting reduction method, instant synthesis, etc.The molar ratio of raw materials, pH value,reaction temperature,reaction time and so on have a greater impact on the purity and crystallinity of the LDHs.

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Qi, Bo, Shaoling Yang, Yongqiang Zhao, et al. "Comparison of the Physicochemical Properties of Carboxymethyl Agar Synthesized by Microwave-Assisted and Conventional Methods." Gels 8, no. 3 (2022): 162. http://dx.doi.org/10.3390/gels8030162.

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The microwave-assisted carboxymethylation of agar to improve its physicochemical properties was investigated. Microwave power, reaction time, and temperature, ethanol concentration, and amounts of chloroacetic acid and sodium hydroxide were assessed for their effects on synthetic yield and degree of substitution (DS). All factors were positively correlated with DS within a certain range. Using optimized conditions, samples with different DS were prepared, and the physicochemical properties of unmodified and carboxymethyl agars prepared by microwave and conventional methods were compared. Carbo

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Jaleel, Abdul, and K. Sreekumaran Nair. "Identification of multiple proteins whose synthetic rates are enhanced by high amino acid levels in rat hepatocytes." American Journal of Physiology-Endocrinology and Metabolism 286, no. 6 (2004): E950—E957. http://dx.doi.org/10.1152/ajpendo.00403.2003.

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Amino acids are key regulators of protein synthesis in liver. However, it remains to be determined whether amino acids stimulate synthesis of all or certain specific liver proteins. No techniques are currently available to simultaneously measure synthetic rates of several individual proteins. Here we report studies performed on rat hepatocyte primary cultures in which we used metabolic labeling with [14C]leucine, two-dimensional gel electrophoresis (2DGE), and tandem mass spectrometry to identify proteins that showed increased leucine incorporation when high amino acid levels were present in t

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Balyuk, O. Ye. "BIOPHARMACEUTICAL INVESTIGATION OF ANTIOXIDANT GEL." Актуальні проблеми сучасної медицини: Вісник Української медичної стоматологічної академії 23, no. 2.2 (2023): 8–11. http://dx.doi.org/10.31718/2077-1096.23.2.2.8.

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Introduction: With the recognized association between oxidative stress and skin diseases, incorporating antioxidants into treatment strategies has gained importance. However, dermatological dosage forms containing antioxidants are underrepresented on the pharmaceutical market. The search for delivery systems that ensure antioxidant stability and enhance antioxidant effects on the skin remains is quite relevant. Among the various dosage forms, gels have gained significant interest in recent times. The purpose of this study work is to conduct a comparative biopharmaceutical investigation o

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Smola, Sergii, Yevhen Fadieiev, Nataliia Rusakova, Mariya Rusakova, and Ninel Efryushina. "SOL-GEL PROCESSED SIO2-AL2O3 XEROGELS: SYNTHESIS AND LUMINESCENT PROPERTIES." Ukrainian Chemistry Journal 86, no. 9 (2020): 3–13. http://dx.doi.org/10.33609/2708-129x.86.9.2020.3-13.

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SiO2-Al2O3 xerogels with various Si : Al ratios were synthesized via sol-gel method (two kinds of synthetic procedures were used) and characterized by means of elemental analysis, XRD, thermogravimetry and IR spectroscopy. No losses of precursors were found during the synthesis and the introduced components are quantitatively transferred from the initial mixture to the composition of the formed samples.The position of the luminescence band in the 300–500 nm region depends on the wavelength of the exciting light, time of gel maturation and the drying temperature, which is the manifestation of t

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Abiko, T., and H. Sekino. "Solid‐phase synthesis of biologically active fragment 29–111 of rat prothymosin alpha." Biotechnology and Applied Biochemistry 13, no. 3 (1991): 406–11. http://dx.doi.org/10.1111/j.1470-8744.1991.tb00161.x.

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Rat prothymosin alpha fragment 29–111, an 83‐residue polypeptide corresponding to desthymosin alpha 1‐prothymosin alpha, has been synthesized by a solid‐phase method. Hydrogen fluoride was used to deprotect and cleave the peptide from the resin. The crude product was purified by gel‐filtration, ion‐exchange chromatography and high‐performance liquid chromatography. A 3.2‐mg sample of a ca. 96% pure peptide was finally obtained. The overall yield of the synthesis was less than 1%. An increase of E‐rosette‐forming lymphocytes was obtained after incubation of peripheral blood from uremic patients

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Tharakan, Shebin, Michael Hadjiargyrou, and Azhar Ilyas. "The Clinical Application of Gel-Based Composite Scaffolds in Rotator Cuff Repair." Gels 11, no. 1 (2024): 2. https://doi.org/10.3390/gels11010002.

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Rotator cuff tears are a common injury that can be treated with or without surgical intervention. Gel-based scaffolds have gained significant attention in the field of tissue engineering, particularly for applications like rotator cuff repair. Scaffolds can be biological, synthetic, or a mixture of both materials. Collagen, a primary constituent of the extracellular matrix (ECM) in musculoskeletal tissues, is one of the most widely used materials for gel-based scaffolds in rotator cuff repair, but other ECM-based and synthetic-based composite scaffolds have also been utilized. These composite

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Alaayedi, Maryam, Hasanain Mahmood, and Ashti Saeed. "THE ENHANCEMENT EFFECT OF CASTOR OIL ON THE PERMEABILITY OF FLURBIPROFEN AS TRANSDERMAL GEL." International Journal of Applied Pharmaceutics 10, no. 1 (2018): 140. http://dx.doi.org/10.22159/ijap.2018v10i1.23348.

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Objective: The object of this study was to improve flurbiprofen permeability transdermally using castor oil as penetration enhancer.Methods: Castor oil with different concentrations (1%, 2%, 3%, 4%, and 5%) was used in this study as a natural enhancer to improve flurbiprofen permeation transdermally as a gel. The formulated gel of the drug was evaluated for several physicochemical characteristics. The in vitro release and permeability studies for the drug were performed using Franz cell diffusion apparatus across the synthetic membrane. Korsmeyer Pappas kinetic model was used to study the rele

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Kumar, Hitesh. "Formulation & Evaluation of Aqueous Guava & Babul Leaves for the Treatment of Mouth Ulcer." INTERANTIONAL JOURNAL OF SCIENTIFIC RESEARCH IN ENGINEERING AND MANAGEMENT 08, no. 05 (2024): 1–5. http://dx.doi.org/10.55041/ijsrem34893.

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This study delved the development and evaluation of a new herbal gel for mouth ulcers using pulverized guava leaves. The gel incorporated colorful attention of the leaves with Carbopol 934 and Propylene glycol as a base. Evaluation included assessments of the gel's physical parcels and natural exertion. Infrared spectroscopy verified no adverse commerce between the leaves and the gelatinizing agent. The performing gel was transparent, invariant, and had a neutral pH range( 7- 7.5). also, it demonstrated good rheological parcels, spreading and banishing fluently. Anti- fungal tests revealed sig

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Humbatova, S. F., N. A. Zeynalov, D. T. Babayeva, and E. F. Nasiyyati. "IMMOBILIZATION AND STUDY OF TRYPSIN ON MAGNETITE-Fe3O4 NANOPARTICLE-BASED NATURAL AND SYNTHETIC POLYMER HYDROGELS." Azerbaijan Chemical Journal, no. 1 (February 22, 2024): 97–104. http://dx.doi.org/10.32737/0005-2531-2024-97-104.

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The presented article designs hydrogel structures with magnetite nanoparticles in the composition, involving various synthetic and natural polymers. The synthesis of magnetite nanoparticles in the hydrogel composition was accomplished through the co-precipitation method, and the immobilization of protein using trypsin as a model drug was investigated. The incorporated of micro-quantities of magnetite Fe3O4 nanoparticles into the gel matrix enhances the affinity for the enzyme, resulting in a significant improvement in specific activity and stability compared to gels without magnetite Fe3O4 nan

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Godse, Jagannath S., Santosh B. Gaikwad, Vishal B. Bhise, Rajendra P. Pawar, and Sanjay B. Ubale. "Synthesis of Co3O4 Nanomaterial with Cetyltrimethylammonium Bromide Using Sol–Gel Method in Environmentally Benevolent Aqueous Media." Advanced Science, Engineering and Medicine 12, no. 6 (2020): 719–22. http://dx.doi.org/10.1166/asem.2020.2579.

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A new green synthetic approach of cobalt oxide (Co3O4) nanomaterial with cetyltrimethylammonium bromide (CTAB) using the sol–gel method was investigated. In this preparation, water is considered as a core solvent, and the synthetic approach is environmentally advantageous because of its low cost, easy preparation, and industrial viability due to this solvent. Investigation of nanomaterial have been done by X-ray diffraction (XRD), transmission electron microscopy (TEM), ultraviolet visible spectroscopy (UV-Visible), energy dispersive X-ray spectroscopy (EDX), and fourier transform Infrared spe

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Sambrook, Joseph, and David W. Russell. "Purification of Synthetic Oligonucleotides by Polyacrylamide Gel Electrophoresis." Cold Spring Harbor Protocols 2006, no. 1 (2006): pdb.prot4063. http://dx.doi.org/10.1101/pdb.prot4063.

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V., K. GUPTA, ALI IMRAN, and JOSHI ANJU. "Tic Separation of some Synthetic Dyes on Silica Gel Layers impregnated with Nickel(II)Ion." Journal of Indian Chemical Society Vol. 68, May 1991 (1991): 311–12. https://doi.org/10.5281/zenodo.6158386.

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Department of Chemistry, University of Roorkee, Roorkee-247 667 <em>Manuscript received 10 September 1990, revised 2 January 1991, accepted 23 April 1991</em> Tic Separation of some Synthetic Dyes on Silica Gel Layers impregnated with Nickel(II)Ion.   

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Tytgat, Liesbeth, Marica Markovic, Taimoor H. Qazi, et al. "Photo-crosslinkable recombinant collagen mimics for tissue engineering applications." Journal of Materials Chemistry B 7, no. 19 (2019): 3100–3108. http://dx.doi.org/10.1039/c8tb03308k.

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Pant, Park, and Park. "Recent Advances in TiO2 Films Prepared by Sol-gel Methods for Photocatalytic Degradation of Organic Pollutants and Antibacterial Activities." Coatings 9, no. 10 (2019): 613. http://dx.doi.org/10.3390/coatings9100613.

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Photocatalysis has recently emerged as an advanced, green, and eco-friendly process for the treatment of wastewater and air, and antimicrobial disinfection applications. In this context, TiO2 nanostructures have been shown to be the prominent photocatalyst candidates due to their low cost, non-toxicity, and ease of fabrication. This review highlights the investigation and development of TiO2 photocatalyst film by sol-gel method with special emphasis on the photodecolorization of synthetic dyes and antibacterial activities. Furthermore, various synthesis methods for the preparation of TiO2 film

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Sfameni, Silvia, Mariam Hadhri, Giulia Rando, et al. "Inorganic Finishing for Textile Fabrics: Recent Advances in Wear-Resistant, UV Protection and Antimicrobial Treatments." Inorganics 11, no. 1 (2023): 19. http://dx.doi.org/10.3390/inorganics11010019.

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The surface modification of textile fabrics and therefore, the development of advanced textile materials featuring specific implemented and new properties, such as improved durability and resistance, is increasingly in demand from modern society and end-users. In this regard, the sol–gel technique has shown to be an innovative and convenient synthetic route for developing functional sol–gel coatings useful for the protection of textile materials. Compared with the conventional textile finishing process, this technique is characterized by several advantages, such as the environmentally friendly

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Ungureanu, Camelia, Silviu Răileanu, Roxana Zgârian, Grațiela Tihan, and Cristian Burnei. "State-of-the-Art Advances and Current Applications of Gel-Based Membranes." Gels 10, no. 1 (2024): 39. http://dx.doi.org/10.3390/gels10010039.

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Gel-based membranes, a fusion of polymer networks and liquid components, have emerged as versatile tools in a variety of technological domains thanks to their unique structural and functional attributes. Historically rooted in basic filtration tasks, recent advancements in synthetic strategies have increased the mechanical strength, selectivity, and longevity of these membranes. This review summarizes their evolution, emphasizing breakthroughs that have positioned them at the forefront of cutting-edge applications. They have the potential for desalination and pollutant removal in water treatme

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Kamanina, Olga A., Evgeniya A. Saverina, Pavel V. Rybochkin, Vyacheslav A. Arlyapov, Anatoly N. Vereshchagin, and Valentine P. Ananikov. "Preparation of Hybrid Sol-Gel Materials Based on Living Cells of Microorganisms and Their Application in Nanotechnology." Nanomaterials 12, no. 7 (2022): 1086. http://dx.doi.org/10.3390/nano12071086.

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Microorganism-cell-based biohybrid materials have attracted considerable attention over the last several decades. They are applied in a broad spectrum of areas, such as nanotechnologies, environmental biotechnology, biomedicine, synthetic chemistry, and bioelectronics. Sol-gel technology allows us to obtain a wide range of high-purity materials from nanopowders to thin-film coatings with high efficiency and low cost, which makes it one of the preferred techniques for creating organic-inorganic matrices for biocomponent immobilization. This review focuses on the synthesis and application of hyb

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Zhang, Shoujing, Feng Hu, Jianhui Li, Leifeng Lv, and Hailin Lu. "Lubrication Effect of Polyvinyl Alcohol/Polyethylene Glycol Gel for Artificial Joints." Advances in Materials Science and Engineering 2021 (August 2, 2021): 1–12. http://dx.doi.org/10.1155/2021/2588784.

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One of the most common problems encountered by patients using artificial joints is the high wear rate. In this study, a polyvinyl alcohol/polyethylene glycol (PVA/PEG) gel was prepared through the cross-linking reaction between polyvinyl alcohol (PVA) and polyethylene glycol (PEG) solutions. This gel can lubricate artificial joints, thereby lowering their coefficient of friction (COF) and increasing their service life. Various techniques, such as Fourier transform infrared spectroscopy, X-ray diffraction, Raman spectra, X-ray photon spectroscopy, and thermogravimetric analyses, were used to an

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Jekal, Suk, Minki Sa, Yeon-Ryong Chu, et al. "A Study on Enhanced Electrorheological Performance of Plate-like Materials via Percolation Gel-like Effect." Gels 9, no. 11 (2023): 891. http://dx.doi.org/10.3390/gels9110891.

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The use of plate-like materials to induce a percolation gel-like effect in electrorheological (ER) fluids is sparsely documented. Hence, we dispersed plate-like materials, namely natural mica, synthetic mica, and glass, as well as their pulverized particles, in various concentrations in silicone oil to form ER fluids. Subsequently, the rheological properties of the fluids were evaluated and compared to identify the threshold concentration for percolating a gel-like state. The shear stress and viscoelastic moduli under zero-field conditions confirmed that plate-like materials can be used to ind

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Koroleva, Tatiana, Boris Pokidko, Ivan Morozov, et al. "Hydrothermal Synthesis of Kaolinite Group Minerals." Materials 18, no. 3 (2025): 472. https://doi.org/10.3390/ma18030472.

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Synthetic alumosilicates are used in many industrial applications, and the synthesis of clay minerals under different conditions allows us to understand the conditions of their formation. This study examined the impact of varying silica precursors, pH conditions and synthesis durations. Synthetic kaolinite group mineral analogues were investigated by X-ray diffraction, scanning electron microscopy and infrared spectroscopy. Additionally, the crystallinity index was calculated. The impact of using different silica sources on the structural features of synthetic kaolinite group analogues was rev

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Forestryana, Dyera, Annisa Hayati, and Aristha Novyra Putri. "Formulation and Evaluation of Natural Gel Containing Ethanolic Extract of Pandanus amaryllifolius R. Using Various Gelling Agents." Borneo Journal of Pharmacy 5, no. 4 (2022): 345–56. http://dx.doi.org/10.33084/bjop.v5i4.1411.

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Ethanol extract of Pandanus amaryllifolius leaves contains quercetin has anti-inflammatory properties. The gel dosage form is very appropriate for wound healing therapy because it gives a cold sensation to the skin. This study aims to formulate a P. amaryllifolius gel by variation of a gelling agent to compare the effect of a natural gelling agent, semi-synthetic gelling agent, and synthetic gelling agent on the physical characteristics of the gel. The gel formulation was made in three formulas. Evaluations include organoleptic, homogeneity, spreadability, adhesion, pH, and viscosity. The opti

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