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Journal articles on the topic 'Physicochemical characterizations'

Author: Grafiati

Published: 1 February 2023

Last updated: 11 March 2023

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1

Iojoiu, C., P. Genova-Dimitrova, M. Maréchal, and J. Y. Sanchez. "Chemical and physicochemical characterizations of ionomers." Electrochimica Acta 51, no. 23 (June 2006): 4789–801. http://dx.doi.org/10.1016/j.electacta.2006.01.022.

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2

Shin, Sang-Chul, and Cheong-Weon Cho. "Physicochemical Characterizations of Piroxicam-Poloxamer Solid Dispersion." Pharmaceutical Development and Technology 2, no. 4 (January 1997): 403–7. http://dx.doi.org/10.3109/10837459709022639.

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3

Liu, Zhaolin, Bing Guo, Liang Hong, and Huixin Jiang. "Physicochemical and photocatalytic characterizations of TiO2/Pt nanocomposites." Journal of Photochemistry and Photobiology A: Chemistry 172, no. 1 (May 2005): 81–88. http://dx.doi.org/10.1016/j.jphotochem.2004.11.008.

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4

Chiang, Yu‐Chun, Pen‐Chi Chiang, and E‐E Chang. "Evaluations of the physicochemical characterizations of activated carbons." Journal of Environmental Science and Health, Part A 33, no. 7 (October 1998): 1437–63. http://dx.doi.org/10.1080/10934529809376797.

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5

Pan, Kang, and Qixin Zhong. "Amyloid-like fibrils formed from intrinsically disordered caseins: physicochemical and nanomechanical properties." Soft Matter 11, no. 29 (2015): 5898–904. http://dx.doi.org/10.1039/c5sm01037c.

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6

Sharma, Bhumika K., Kinjal Patel, and Debesh R. Roy. "Synthesis, Physicochemical Characterizations and Antimicrobial Activity of CuO Nanoparticles." Current Nanomaterials 3, no. 2 (November 15, 2018): 121–25. http://dx.doi.org/10.2174/2405461503666180801124409.

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7

Karoui, Iness J., Jihene Ayari, Nessrine Ghazouani, and Manef Abderrabba. "Physicochemical and biochemical characterizations of some Tunisian seed oils." OCL 27 (2020): 29. http://dx.doi.org/10.1051/ocl/2019035.

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Four Tunisian vegetable oils extracted from seeds (Nigella sativa, Opuntia ficus indica, Pistacia lentiscus and Hibiscus sabdariffa) have been characterized in this study. The following parameters were determined: acidity, peroxide value, saponification value, specific extinction coefficients K232, K270, chlorophylls and carotenoids content. The triglyceride and tocopherol compositions of the oils were determined using reversed phase high performance liquid chromatography with diode array detection (HPLC-DAD) and the fatty acids (FA) and phytosterol compositions were determined using a gas chromatography (GC) with a flame ionization detector (FID). Polyunsaturated fatty acids were predominant in all tested samples except in Pistacia lentiscus oil where monounsaturated fatty acids were predominant. Major FA were linoleic and oleic acids. β-sitosterol was the most abundant phytosterol. All samples had high content of TAGs with an equivalent carbon number of 44, 46 and 48. Nigella sativa oil had the highest content of tocopherols.

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8

Bottino, Marco C., Ghada Batarseh, Jadesada Palasuk, Mohammed S. Alkatheeri, L. Jack Windsor, and Jeffrey A. Platt. "Nanotube-modified dentin adhesive—Physicochemical and dentin bonding characterizations." Dental Materials 29, no. 11 (November 2013): 1158–65. http://dx.doi.org/10.1016/j.dental.2013.08.211.

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9

Zhao, Xia, Xin Liu, Lishe Gan, ChangXin Zhou, and JianXia Mo. "Preparation and physicochemical characterizations of tanshinone IIA solid dispersion." Archives of Pharmacal Research 34, no. 6 (June 2011): 949–59. http://dx.doi.org/10.1007/s12272-011-0612-3.

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10

Chylewska, Agnieszka, Małgorzata Ogryzek, Angelika Głębocka, Artur Sikorski, Katarzyna Turecka, Ewa D. Raczyńska, and Mariusz Makowski. "Crystalline pyrazine-2-amidoxime isolated by diffusion method and its structural and behavioral analysis in the context of crystal engineering and microbiological activity." RSC Advances 6, no. 69 (2016): 64499–512. http://dx.doi.org/10.1039/c6ra10537h.

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The physicochemical characterizations of PAOX were obtained both in solid-state and solution, and its two anti-conformers were observed in the X-ray. Its antimicrobial properties were tested against reference strains of bacteria and yeast.

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Xue, Jingyi, Zhenshun Li, Hanyi Duan, Jie He, and Yangchao Luo. "Chemically modified phytoglycogen: Physicochemical characterizations and applications to encapsulate curcumin." Colloids and Surfaces B: Biointerfaces 205 (September 2021): 111829. http://dx.doi.org/10.1016/j.colsurfb.2021.111829.

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Kuśmierz, Edyta, Agata Siwek, Urszula Kosikowska, Anna Malm, Tomasz Plech, Andrzej Wróbel, and Monika Wujec. "Antimicrobial and Physicochemical Characterizations of Thiosemicarbazide and S-Triazole Derivatives." Phosphorus, Sulfur, and Silicon and the Related Elements 189, no. 10 (September 25, 2014): 1539–45. http://dx.doi.org/10.1080/10426507.2014.902831.

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13

Rabesiaka, Mihasina, Mehrez Sghaier, Bernard Fraisse, Catherine Porte, Jean-Louis Havet, and Emma Dichi. "Preparation of glycine polymorphs crystallized in water and physicochemical characterizations." Journal of Crystal Growth 312, no. 11 (May 2010): 1860–65. http://dx.doi.org/10.1016/j.jcrysgro.2010.03.011.

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14

Saeed, Kamal M., ElfatihA Hassan, MohamedE Osman, and ElHafez M2. "PHYSICOCHEMICAL CHARACTERIZATIONS OF ACACIA SIEBERANA VAR. SIEBERANA OF SUDANESE ORIGIN." International Journal of Advanced Research 4, no. 6 (June 30, 2016): 1871–80. http://dx.doi.org/10.21474/ijar01/783.

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15

Yahoum, Madiha M., Nadji Moulai-Mostefa, and Didier Le Cerf. "Synthesis, physicochemical, structural and rheological characterizations of carboxymethyl xanthan derivatives." Carbohydrate Polymers 154 (December 2016): 267–75. http://dx.doi.org/10.1016/j.carbpol.2016.06.080.

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16

Ayanda, Olushola S., Olalekan S. Fatoki, Folahan A. Adekola, and Bhekumusa J. Ximba. "Activated Carbon-Fly Ash-Nanometal Oxide Composite Materials: Preparation, Characterization, and Tributyltin Removal Efficiency." Journal of Chemistry 2013 (2013): 1–15. http://dx.doi.org/10.1155/2013/148129.

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The physicochemical properties, nature, and morphology of composite materials involving activated carbon, fly ash, nFe3O4, nSiO2, and nZnO were investigated and compared. Nature and morphology characterizations were carried out by means of scanning electron and transmission electron microscopy, X-ray diffraction, and Fourier transform infrared spectroscopy. Other physicochemical characterizations undertaken were CNH analysis, ash content, pH, point of zero charge, and surface area and porosity determination by BET. Experimental results obtained revealed that activated carbon, nSiO2, activated carbon-fly ash, activated carbon-fly ash-nFe3O4, activated carbon-fly ash-nSiO2, and activated carbon-fly ash-nZnO composite materials exhibited net negative charge on their surfaces while fly ash, nFe3O4, and nZnO possessed net positive charge on their surfaces. Relatively higher removal efficiency (>99%) of TBT was obtained for all the composite materials compared to their respective precursors except for activated carbon. These composite materials therefore offer great potential for the remediation of TBT in wastewaters.

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17

Umar, Zainab Garba, Moses E. Abalaka, Safiya Yahaya Daniyan, Hausatu Babayi, and Kamoru Abdulazeez Adeniyi. "Physicochemical and bio-metabolite characterizations of chitosan isolated from American cockroach (Periplaneta americana) and cricket (Acheta domesticus)." BIOMED natural and applied science 02, no. 01 (March 13, 2022): 25–36. http://dx.doi.org/10.53858/bnas02012536.

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Background: Chitosan is gaining increased research interest due to its wide range of potential applications in the field of biotechnology, medicine and pharmacology, agriculture, textiles, cosmetics and wastewater treatments. This study was designed specifically to explore locally available chitosan from American cockroaches (Periplaneta americana) and cricket (Acheta domesticus) as an alternative source of chitosan for industrial application. Methods: Chitosan was extracted by alkaline deacetylation of chitin and were physicochemically characterized using Fourier Transformed Infrared Spectroscopy (FTIR), scanning electron microscope (SEM), degree of deacetylation (DD), solubility and Gas Chromatography-Mass Spectrometry. Results: The yielding proportion of Chitosan obtained from P. americana and A. domesticus were 99.7 and 90.6%. The cockroach and cricket chitosan have the same degree of deacetylation of 90.3 % and 88.5%respectively. The FTIR Spectroscopy of the chitosan from P. americana and A. domesticus revealed that the obtained chitosan was in alpha polymorphic form. This fact was confirmed by the scanning electron microscope (SEM) which shows the morphology of the chitosans from both insects. Chitosan from Cockroach and crickets compares favourably and were found to exhibit some similarities. It was established that P. americana chitosan was more soluble in dilute acetic acid with about 102.1% solubility, while A. domesticus chitosan had 93%. The GCMS analysis revealed the presence of a class of compounds like benzene derivative, alkene derivative, bicycle derivative, bicycle alcohol derivative, multiple cyclic compounds, saturated tricycle and derivatives of chloroalkane, fatty acid, saturated, and saturated alcohol. Conclusion: Based on all these qualities possessed by the chitosan of both insects, they can replace commercial chitin and chitosan in terms of utilization and applications. Therefore, both insects are promising alternative sources of chitin and chitosan.

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Witika, Bwalya A., Marique Aucamp, Larry L. Mweetwa, and Pedzisai A. Makoni. "Application of Fundamental Techniques for Physicochemical Characterizations to Understand Post-Formulation Performance of Pharmaceutical Nanocrystalline Materials." Crystals 11, no. 3 (March 21, 2021): 310. http://dx.doi.org/10.3390/cryst11030310.

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Nanocrystalline materials (NCM, i.e., crystalline nanoparticles) have become an important class of materials with great potential for applications ranging from drug delivery and electronics to optics. Drug nanocrystals (NC) and nano co-crystals (NCC) are examples of NCM with fascinating physicochemical properties and have attracted significant attention in drug delivery. NCM are categorized by advantageous properties, such as high drug-loading efficiency, good long-term physical stability, steady and predictable drug release, and long systemic circulation time. These properties make them excellent formulations for the efficient delivery of a variety of active pharmaceutical ingredients (API). In this review, we summarize the recent advances in drug NCM-based therapy options. Currently, there are three main methods to synthesize drug NCM, including top-down, bottom-up, and combination methods. The fundamental characterization methods of drug NCM are elaborated. Furthermore, the applications of these characterizations and their implications on the post-formulation performance of NCM are introduced.

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19

RANA, POONAM, Kamalika Banerjee, Saurabh Sharma, and Rajni Sharma. "Pectin Stabilized/Capped Ferromagnetic Co3O4 Nanoparticles with Antimicrobial Efficacy: A Greener Approach." Oriental Journal Of Chemistry 38, no. 2 (April 29, 2022): 219–26. http://dx.doi.org/10.13005/ojc/380201.

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The preparation of Co3O4 nanoparticles using thermal decomposition and their characterization by various physicochemical studies is being reported here. The focus is on the use of pectin as a capping/stabilizing agent and heading the methodology towards greener pathway, single pot and cost effective technique. The characterizations were done by using UV-Visible, FTIR, SEM, TEM and XRD analysis which confirmed the formation of nanoparticles. The FTIR spectrum revealed the presence of pectin along with the nanoparticles. The nanoparticles were found to be stable at pH 5.5 as evaluated by their zeta potential analysis. The magnetic measurements (VSM) revealed their ferromagnetic behavior. These nanoparticles indicated effective antimicrobial potency against six different strains of bacteria.

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20

Gong, Wanxin, Tian Liu, Zhidan Zhou, Dianxing Wu, Xiaoli Shu, and Haizheng Xiong. "Physicochemical characterizations of starches isolated from Tetrastigma hemsleyanum Diels et Gilg." International Journal of Biological Macromolecules 183 (July 2021): 1540–47. http://dx.doi.org/10.1016/j.ijbiomac.2021.05.117.

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21

Takamine, Kazunori, Jun-ichi Abe, Kaori Shimono, Yoshihiro Sameshima, Shigeru Morimura, and Kenji Kida. "Physicochemical and Gelling Characterizations of Pectin Extracted from Sweet Potato Pulp." Journal of Applied Glycoscience 54, no. 4 (2007): 211–16. http://dx.doi.org/10.5458/jag.54.211.

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22

Mathiyalagan, Ramya, Yeon Ju Kim, Chao Wang, Yan Jin, Sathiyamoorthy Subramaniyam, Priyanka Singh, Dandan Wang, and Deok Chun Yang. "Protopanaxadiol aglycone ginsenoside-polyethylene glycol conjugates: synthesis, physicochemical characterizations, andin vitrostudies." Artificial Cells, Nanomedicine, and Biotechnology 44, no. 8 (November 5, 2015): 1803–9. http://dx.doi.org/10.3109/21691401.2015.1105236.

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23

Takada, K., N. Ohno, and T. Yadomae. "Physicochemical and biological characterizations of complex formation between lipopolysaccharide and lysozyme." Journal of Endotoxin Research 2, no. 4 (August 1995): 255–62. http://dx.doi.org/10.1177/096805199500200405.

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24

Kassem, M. "Synthesis, physicochemical characterizations, and photocatalytic behaviors of Ni x K2Mo4O13 systems." Research on Chemical Intermediates 41, no. 5 (September 21, 2013): 2891–900. http://dx.doi.org/10.1007/s11164-013-1397-4.

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25

Pongjanyakul, Thaned, Wanwisa Khunawattanakul, and Satit Puttipipatkhachorn. "Physicochemical characterizations and release studies of nicotine–magnesium aluminum silicate complexes." Applied Clay Science 44, no. 3-4 (May 2009): 242–50. http://dx.doi.org/10.1016/j.clay.2009.03.004.

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26

Lin, Lihua, Jianhua Xie, Suchen Liu, Mingyue Shen, Wei Tang, and Mingyong Xie. "Polysaccharide from Mesona chinensis : Extraction optimization, physicochemical characterizations and antioxidant activities." International Journal of Biological Macromolecules 99 (June 2017): 665–73. http://dx.doi.org/10.1016/j.ijbiomac.2017.03.040.

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27

Ramírez-Gómez, Marco Antonio, Karla Karina Guzmán-Rabadán, Edgar González-Juárez, Marisol Güizado-Rodríguez, Gabriel Ramos-Ortiz, Jorge Enrique Alba-Rosales, Huehueteotl Panzo-Medrano, et al. "Physicochemical and Luminescent Properties of Copolymers Composed of Three Monomers: Polythiophenes Based on 3-Hexylthiophene and 3,4-Ethylenedioxythiophene." International Journal of Polymer Science 2017 (2017): 1–11. http://dx.doi.org/10.1155/2017/1918602.

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The chemical synthesis and physicochemical and luminescent characterizations of polymers based on 3-HT, EDOT, and 2,2′-(9,9-dioctyl-9H-fluorene-2,7-diyl) bisthiophene (fluorene) or (E)-2-(ethyl(4-((4-nitrophenyl)diazenyl)phenyl)amino)ethyl 2-(thiophen-3-yl)acetate (TDR1) are reported. The fluorene unit was bound to the conjugate backbone, while the Disperse Red 1 (DR1) chromophore was present as a pendant group. Characterizations by 1H NMR, FT-IR, DSC-TGA, GPC, UV-vis, cyclic voltammetry, fluorescence quantum yield, excited state lifetime, and two-photon absorption cross-section were carried out. These polymers combined the physicochemical properties of EDOT and 3-HT, such as high electron density, high charge mobility, low oxidation potential, and good processability. The optical properties of these copolymers were highly dependent on the presence of EDOT, the molecular weight, and the regioregularity rather than the presence of the third component (fluorene or TDR1). The good nonlinear absorption and luminescent properties exhibited by these copolymers were exploited to fabricate nanoparticles used as fluorescent tags for the imaging of microstructures.

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28

Redjala, Sonya, Said Azem, and Nourredine Ait Hocine. "Thermoplastique Degradation under Heat and Irradiation." Key Engineering Materials 904 (November 22, 2021): 196–201. http://dx.doi.org/10.4028/www.scientific.net/kem.904.196.

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The aim of the article is to highlight the effect of the environment on the properties of a polycarbonate (PC). It consists in aging this material under Ultra-violet (UV) combined with temperature for different periods of time, and to reveal the physicochemical and mechanical changes caused by aging. PC is a highly valued technical material for its various important characteristics and low cost. It finds its application in various fields but mainly in those whose requirements are the transparency and the impact resistance. The physicochemical and mechanicals characterizations of the marketed polycarbonate are necessary in order to highlight its intrinsic properties and to develop strategies that can improve its lifespan. In this work, we highlight the physicochemical and mechanical characteristics of virgin and aged polycarbonate. For this, analytical techniques and mechanical tests were used. A comparison of the characteristics revealed the combined effects of temperature and ultraviolet rays.

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29

Sulistyowaty, Melanny Ika, Dwi Setyawan, Retno Sari, Abhimata Paramanandana, Nofika Agung Maharani, and Timbul Partogi Simorangkir. "Preparation and Physicochemical Characterizations of p-Methoxycinnamic acid – Succinic Acid Cocrystal by Solvent Evaporation Technique." Open Access Macedonian Journal of Medical Sciences 10, A (July 7, 2022): 1444–49. http://dx.doi.org/10.3889/oamjms.2022.10193.

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Background: PMCA (p-Methoxycinnamic acid) is an active pharmaceutical ingredient derived from Kaempheria galanga L (known as kencur in Indonesia), which is poorly soluble in water. It can cause problems in the development of pharmaceutical dosage forms. Several methods have been carried out to increase the solubility of PMCA such as complex formation with β-cyclodextrin, or solid dispersion. The cocrystal formation method is a solubility enhancement method that has been developed recently. Aim: The aim of the study was the preparation and physicochemical characterization of PMCA co-crystal with succinic acid (SA) as its conformer by solvent evaporation technique. Methods: PMCA-SA cocrystal was made by the solvent evaporation method with a 1:1 molar ratio. Physicochemical characterization of PMCA and SA cocrystal was performed by differential scanning calorimetry (DSC), powder X-ray diffraction (PXRD), and scanning electron microscope (SEM). Results: The DSC thermogram showed a decrease in the melting point of cocrystal compared to PMCA (173.55˚C), SA (187.55˚C), and its physical mixture (159.53˚C). The cocrystal thermogram displayed an endothermic peak at 158.46 ° C. Diffractogram of PMCA- SA cocrystal exhibited new diffraction peaks at an angle of 2θ = 21.92; 25.91 and 39.25˚ which was not found in the diffractogram of every single component nor its physical mixture. SEM photomicrograph showed PMCA-SA cocrystal as a rod-shaped crystal that had a different surface morphology and smaller size than the constituent materials. Conclusions: Based on the physicochemical characterization data above, it could be ascertained that PMCA-SA cocrystals had formed, these cocrystals were expected to increase the solubility of PMCA in water.

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30

Colson, Matthew, Leandro Alvarez, Stephanie Michelle Soto, Sung Hee Joo, Kai Li, Andrew Lupini, Kashif Nawaz, et al. "A Novel Sustainable Process for Multilayer Graphene Synthesis Using CO2 from Ambient Air." Materials 15, no. 17 (August 26, 2022): 5894. http://dx.doi.org/10.3390/ma15175894.

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Graphene produced by different methods can present varying physicochemical properties and quality, resulting in a wide range of applications. The implementation of a novel method to synthesize graphene requires characterizations to determine the relevant physicochemical and functional properties for its tailored application. We present a novel method for multilayer graphene synthesis using atmospheric carbon dioxide with characterization. Synthesis begins with carbon dioxide sequestered from air by monoethanolamine dissolution and released into an enclosed vessel. Magnesium is ignited in the presence of the concentrated carbon dioxide, resulting in the formation of graphene flakes. These flakes are separated and enhanced by washing with hydrochloric acid and exfoliation by ammonium sulfate, which is then cycled through a tumble blender and filtrated. Raman spectroscopic characterization, FTIR spectroscopic characterization, XPS spectroscopic characterization, SEM imaging, and TEM imaging indicated that the graphene has fifteen layers with some remnant oxygen-possessing and nitrogen-possessing functional groups. The multilayer graphene flake possessed particle sizes ranging from 2 µm to 80 µm in diameter. BET analysis measured the surface area of the multilayer graphene particles as 330 m2/g, and the pore size distribution indicated about 51% of the pores as having diameters from 0.8 nm to 5 nm. This study demonstrates a novel and scalable method to synthesize multilayer graphene using CO2 from ambient air at 1 g/kWh electricity, potentially allowing for multilayer graphene production by the ton. The approach creates opportunities to synthesize multilayer graphene particles with defined properties through a careful control of the synthesis parameters for tailored applications.

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31

Emerenciano, Denise, Bernardo Baracho, Melyssa de Medeiros, Hugo Rocha, Francisco Xavier Jr., Valdir da Veiga Jr., and Maria Aparecida Maciel. "Physicochemical Characterizations and Antioxidant Property of Copaiba Oil Loaded into SNEDDS Systems." Journal of the Brazilian Chemical Society 30, no. 2 (2019): 234–46. http://dx.doi.org/10.21577/0103-5053.20180172.

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32

Algarra, Manuel, Ana L. Cuevas, Ma Valle Martínez de Yuso, Rocío Romero, Beatriz Alonso, Carmen M. Casado, and Juana Benavente. "Optical and Physicochemical Characterizations of a Cellulosic/CdSe-QDs@S-DAB5 Film." Nanomaterials 12, no. 3 (January 29, 2022): 484. http://dx.doi.org/10.3390/nano12030484.

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CdSe quantum dots nanoparticles were coated with the thiolated (DiAminoButane based dendrimer) DAB dendrimer of fifth generation (S-DAB5) and embedded in a highly hydrophilic regenerated cellulose (RC) film by simple dip-coating method (immersion in QD-dendrimer aqueous solution) as a way to get a flexible nano-engineered film (RC-4/CdSe-QDs@S-DAB5) with high transparency and photoluminescence properties for different applications. Optical changes in the RC film associated with QDs inclusion were determined by spectroscopic ellipsometry (SE) measurements, which provide information on changes caused in the refraction index and the extinction coefficients of the film, as well as by light transmittance/reflectance curves and photoluminescence (PL) spectra. Impedance spectroscopy (IS) and other typical physicochemical techniques for material characterization (TEM, SEM and XPS) have also been used in order to have more complete information on film characteristics. A comparison of RC-4/CdSe-QDs@S-DAB5 film optical characteristics with those exhibited by other RC-modified films depending on the type of dendrimer was also carried out.

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33

Arunarajeswari, P., T. Mathavan, S. Christopher Jeyaseelan, A. Divya, and A. Milton Franklin Benial. "Anionic acid functionalized mesoporous γ- Al2O3 nanorods: Preparation, physicochemical and biological characterizations." Chemical Data Collections 37 (February 2022): 100819. http://dx.doi.org/10.1016/j.cdc.2021.100819.

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34

Kim, Kwangmeyung, Seunglee Kwon, Jae Hyung Park, Hesson Chung, Seo Young Jeong, Ick Chan Kwon, and In-San Kim. "Physicochemical Characterizations of Self-Assembled Nanoparticles of Glycol Chitosan−Deoxycholic Acid Conjugates." Biomacromolecules 6, no. 2 (March 2005): 1154–58. http://dx.doi.org/10.1021/bm049305m.

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35

Shigeri, Yasushi, Masanori Horie, Tsuyoshi Yoshida, Yoshihisa Hagihara, Tomohiro Imura, Hidetoshi Inagaki, Yoshikazu Haramoto, Yuzuru Ito, and Makoto Asashima. "Physicochemical and biological characterizations of Pxt peptides from amphibian (Xenopus tropicalis) skin." Journal of Biochemistry 159, no. 6 (January 22, 2016): 619–29. http://dx.doi.org/10.1093/jb/mvw003.

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36

Laurent, Sophie, Delphine Forge, Marc Port, Alain Roch, Caroline Robic, Luce Vander Elst, and Robert N. Muller. "Magnetic Iron Oxide Nanoparticles: Synthesis, Stabilization, Vectorization, Physicochemical Characterizations, and Biological Applications." Chemical Reviews 108, no. 6 (June 2008): 2064–110. http://dx.doi.org/10.1021/cr068445e.

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37

Laurent, Sophie, Delphine Forge, Marc Port, Alain Roch, Caroline Robic, Luce Vander Elst, and Robert N. Muller. "Magnetic Iron Oxide Nanoparticles: Synthesis, Stabilization, Vectorization, Physicochemical Characterizations, and Biological Applications." Chemical Reviews 110, no. 4 (April 14, 2010): 2574. http://dx.doi.org/10.1021/cr900197g.

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38

Vuillemin, Marie E., Florentin Michaux, Aurélie A. Adam, Michel Linder, Lionel Muniglia, and Jordane Jasniewski. "Physicochemical characterizations of gum Arabic modified with oxidation products of ferulic acid." Food Hydrocolloids 107 (October 2020): 105919. http://dx.doi.org/10.1016/j.foodhyd.2020.105919.

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39

Seo, Soo Young, Yu-Ra Kang, Yun-Kyung Lee, Jin Hye Lee, and Yoon Hyuk Chang. "Physicochemical, molecular, emulsifying and rheological characterizations of sage (Salvia splendens) seed gum." International Journal of Biological Macromolecules 115 (August 2018): 1174–82. http://dx.doi.org/10.1016/j.ijbiomac.2018.04.173.

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40

Pang, Jinxin, Yi Zhang, Xiaoyang Tong, Yaoguang Zhong, Fanjun Kong, Dan Li, Xifan Liu, and Yongjin Qiao. "Recent Developments in Molecular Characterization, Bioactivity, and Application of Arabinoxylans from Different Sources." Polymers 15, no. 1 (January 1, 2023): 225. http://dx.doi.org/10.3390/polym15010225.

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Arabinoxylan (AX) is a polysaccharide composed of arabinose, xylose, and a small number of other carbohydrates. AX comes from a wide range of sources, and its physicochemical properties and physiological functions are closely related to its molecular characterization, such as branched chains, relative molecular masses, and substituents. In addition, AX also has antioxidant, hypoglycemic, antitumor, and proliferative abilities for intestinal probiotic flora, among other biological activities. AXs of various origins have different molecular characterizations in terms of molecular weight, degree of branching, and structure, with varying structures leading to diverse effects of the biological activity of AX. Therefore, this report describes the physical properties, biological activities, and applications of AX in diverse plants, aiming to provide a theoretical basis for future research on AX as well as provide more options for crop breeding.

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Sadeghi-avalshahr, Ali Reza, Samira Nokhasteh, Amir Mahdi Molavi, Najmeh Mohammad-pour, and Mohammad Sadeghi. "Tailored PCL Scaffolds as Skin Substitutes Using Sacrificial PVP Fibers and Collagen/Chitosan Blends." International Journal of Molecular Sciences 21, no. 7 (March 27, 2020): 2311. http://dx.doi.org/10.3390/ijms21072311.

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Electrospinning is a versatile technique for fabrication of made-on-purpose biomimetic scaffolds. In this study, optimized electrospun fibrous membranes were produced by simultaneous electrospinning of polycaprolactone (PCL) and polyvinylpyrrolidone (PVP), followed by the selective removal of PVP from the PCL/PVP mesh. After aminolysis, a blend of collagen/chitosan was grafted on the surface. Physicochemical characterizations as well as in vitro evaluations were conducted using different methods. Successful cell infiltration into samples was observed. It seems that the positive trend of cell ingress originates from the proper pore size obtained after removal of pvp (from 4.46 μm before immersion in water to 33.55 μm after immersion in water for 24 h). Furthermore, grafting the surface with the collagen/chitosan blend rendered the scaffolds more biocompatible with improved attachment and spreading of keratinocyte cell lines (HaCaT). Viability evaluation through MTT assay for HDF cells did not reveal any cytotoxic effects. Antibacterial assay with Staphylococcus aureus as Gram-positive and Escherichia coli as Gram-negative species corroborated the bactericidal effects of chitosan utilized in the composition of the coated blend. The results of in vitro studies along with physicochemical characterizations reflect the great potentials of the produced samples as scaffolds for application in skin tissue engineering.

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Torres-Alvarez, Cynthia, Sandra Castillo, Eduardo Sánchez-García, Carlos Aguilera González, Sergio Arturo Galindo-Rodríguez, José A. Gabaldón-Hernández, and Juan G. Báez-González. "Inclusion Complexes of Concentrated Orange Oils and β-Cyclodextrin: Physicochemical and Biological Characterizations." Molecules 25, no. 21 (November 3, 2020): 5109. http://dx.doi.org/10.3390/molecules25215109.

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Concentrated orange oils (5x, 10x, 20x) are ingredients used in different industries as components of flavors and aromas due to their great organoleptic qualities. This research focuses on the search for alternative uses for their application through encapsulation in inclusion complexes with β-cyclodextrin (β–CD). Inclusion complexes of concentrated orange oils (COEO) and β–CD were developed by the co-precipitated method in ratios of 4:96, 12:88, and 16:84 (w/w, COEO: β–CD). The best powder recovery was in the ratio 16:84 for the three oils, with values between 82% and 84.8%. The 20x oil in relation 12:88 showed the highest entrapment efficiency (89.5%) with 102.3 mg/g of β–CD. The FT-IR analysis may suggest an interaction between the oil and the β–CD. The best antioxidant activity was observed in the ratio 12:88 for the three oils. The antifungal activity was determined for all the inclusion complexes, and the 10x fraction showed the highest inhibition at a concentration of 10 mg/mL in ratios 12:88 and 16:84. Antibacterial activity was determined by the minimum inhibitory concentration (MIC) and was found at a concentration of 1.25 mg/mL in ratios 12:88 and 16:84 for 5x and 20x oils.

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Zarrougui, Ramzi, Rahma Hachicha, Refka Rjab, Sabri Messaoudi, and Ouassim Ghodbane. "Physicochemical characterizations of novel dicyanamide-based ionic liquids applied as electrolytes for supercapacitors." RSC Advances 8, no. 54 (2018): 31213–23. http://dx.doi.org/10.1039/c8ra05820b.

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Cheng, Jun, Xin Wang, Fan Zhou, Rui Huang, Aiying Wang, Xungang Chen, Jianzhong Liu, and Kefa Cen. "Physicochemical characterizations for improving the slurryability of Philippine lignite upgraded through microwave irradiation." RSC Advances 5, no. 19 (2015): 14690–96. http://dx.doi.org/10.1039/c4ra12595a.

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Kobayashi, Yuka, and Jae W. Park. "Physicochemical characterizations of tilapia fish protein isolate under two distinctively different comminution conditions." Journal of Food Processing and Preservation 41, no. 6 (March 16, 2017): e13233. http://dx.doi.org/10.1111/jfpp.13233.

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Li, Xuguang, and I.-Ming Hsing. "Electrochemical and physicochemical characterizations of methanol-tolerant platinum-macrocycle cocatalyst for oxygen reduction." Electrochimica Acta 52, no. 17 (May 2007): 5462–69. http://dx.doi.org/10.1016/j.electacta.2007.02.079.

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Wie, Young Min, Ki Gang Lee, and Kang Hoon Lee. "Physicochemical effect of the aeration rate on bloating characterizations of artificial lightweight aggregate." Construction and Building Materials 256 (September 2020): 119444. http://dx.doi.org/10.1016/j.conbuildmat.2020.119444.

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Rajak, Sanil, Olivier Schott, Prabhjyot Kaur, Thierry Maris, Garry S. Hanan, and Adam Duong. "Mimicking 2,2′:6′,2′′:6′′,2′′′-quaterpyridine complexes for the light-driven hydrogen evolution reaction: synthesis, structural, thermal and physicochemical characterizations." RSC Advances 9, no. 48 (2019): 28153–64. http://dx.doi.org/10.1039/c9ra04303a.

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Mirzaeei, Shahla, Ghobad Mohammadi, Navid Fattahi, Pardis Mohammadi, Ali Fattahi, Mohammad Reza Nikbakht, and Khosro Adibkia. "Formulation and Physicochemical Characterization of Cyclosporine Microfiber by Electrospinning." Advanced Pharmaceutical Bulletin 9, no. 2 (June 1, 2019): 249–54. http://dx.doi.org/10.15171/apb.2019.028.

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Purpose: The objective of this study was to improve the permeability and water solubility rate of a poor water soluble drug, cyclosporine A (CsA). Methods: In order to improve the drug dissolution rate and oral bioavailability, electrospinning method was used as an approach to prepare. The fibers were evaluated for surface morphology, thermal characterizations, drug crystallinity, in vitro drug release and in vivo bioavailability studies. Results: Scanning electron microscope (SEM) results confirmed that the fibers were in microsize range and the size of the fibers was in the rang of 0.2 to 2 micron. Differential scanning calorimetry (DSC) and powder X-ray diffractometry (XRPD) analysis ensured that the crystalline lattice of drug were weakened or destroyed in the fibers. The drug release was 15.28%, 20.67%, and 32.84% from pure drug, fibers of formulation B, and formulation A, respectively. In vivo study results indicated that the bioavailability parameters of the optimized fiber formulation were improved and the maximum concentration (Cmax) were significantly higher for fibers (3001 ng/mL) than for pure drug (2550 ng/mL). The dissolution rate of the formulations was dependent on the nature and ratio of drug to carriers. Conclusion: The physicochemical properties showed that the optimized mixture of polyethylene glycol (PEG) and povidone (PVP) fibers could be an effective carrier for CsA delivery. PEG and PVP fibers improved the absolute bioavailability and drug dissolution rate with appropriate physicochemical properties.

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Warra, A. A. "Analyzing Physicochemical Properties of Wild Grapes (Lannea Microcarpa) Seed Oil." Indonesian Journal of Computing, Engineering and Design (IJoCED) 1, no. 1 (April 21, 2019): 37. http://dx.doi.org/10.35806/ijoced.v1i1.35.

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The purpose of this study was to analyze physicochemical properties of wild grape (Lannea microcarpa) seed oil. Several characterizations were conducted, including a gas chromatography and mass spectrometry (GC-MS) and cold saponification. The analyses were also supported by measuring acid, iodine, saponification, and peroxide values. Other analyses were relative density and refractive index. Experimental results showed that the oil was dark purple with the composition of oil of 59%. The qualitative GC-MS revealed the oil contained several fatty acids, including decanoic acid, palmitic acid, stearic acid, margaric acid, 1-octadecanoic acid, oleic, and erucic acid. The soap produced from the seed oil has basic pH and relatively high foam value. When the high concentration of oil was used, the appearance of oil was very dark purple and slightly soluble in water. This is due to the fact that most of the oil compositions were non-polar structure. This result confirmed the potential use of the oil for soap and other cosmetic materials.

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