Physicochemical characterization
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In this study, achira (Canna edulis) starch was oxidized by sodium hypochlorite and the effects of different concentration of oxidation agent (1, 2, 3 and 5%) on the physicochemical properties, morphological properties and crystallinity of achira starch (AS) was investigated. The carbonyl and carboxyl content, starch colour parameters, swelling capacity, solubility, IR spectra, SEM and XRD of native and oxidized achira starch (OAS) were evaluated.
7p dianmotminh02 03-05-2024 1 1 Download
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Ebook "Advanced polymers in medicine" provides an up-to-date overview of the diverse medical applications of advanced polymers. The book opens by presenting important background information on polymer chemistry and physicochemical characterization of polymers. This serves as essential scientific support for the subsequent chapters, each of which is devoted to the applications of polymers in a particular medical specialty.
538p nhanphanguyet 28-01-2024 5 2 Download
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Ebook "Characterization of nanoparticles intended for drug delivery (Second edition)" expands on the first edition by providing up-to-date protocols to characterize nanomaterials used as drug delivery agents. The chapters in this book are divided into 5 parts and cover topics such as: advances and obstacles in nanomedicine research; methods to test sterility and endotoxin, physicochemical features, immunological effects, drug release, and in vivo efficacy.
250p lucchinguyen 28-12-2023 3 2 Download
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Tensoactive species obtained by papain hydrolysis of soy protein were characterized structurally and physicochemically, and their foam-forming and -stabilizing capacity studied. Protein structural changes upon reaction ending were correlated with functional and interfacial properties and with the behaviour thereof with varying hydrolysis degree.
9p viisac 23-09-2023 5 1 Download
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The study was carried out with twenty-four genotypes of rice during the Spring season, 2020 in Hanoi, Vietnam in order to exploit the attributes and divergence of quality properties from existing rice cultivars in North Vietnam. The rice genotypes were characterized based on ten quality parameters of milling, physical appearance and physiochemical characters using Mahalanobis D2 statistic
10p viengels 25-08-2023 2 2 Download
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In this study, the as-fabricated nanocomposite was characterized by using physicochemical strategies. The cell-material boundary of the nanocomposite was observed in vitro with human osteoblast cells, and the cell replication was tested. The nanocomposite promoted the bone cell adhesion and proliferation, improved the mechanical strength and repressed the growth of bacterial cells.
6p viberbers 09-08-2023 6 3 Download
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In this study, response surface methodology (RSM) was carried out with four parameters: chitosan concentration, AgNO3 concentration, ascorbic acid concentration, and time to obtain the minimum mean particle size of silver nanoparticles (response Y).
7p viberkshire 09-08-2023 3 2 Download
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This material was characterized by modern physicochemical methods such as: X-ray diffraction technique (XRD), Raman, Infrared (FT-IR) and UV-Vis spectroscopy and voltammetric technique. This result will offering a new direction for the synthesis of new materials from TCNQ and other amino acids.
7p viberkshire 09-08-2023 3 3 Download
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Therefore, this study aimed to develop and characterize solid lipid nanoparticles (SLNs) containing tinidazole (TNZ-SLNs) oriented to be incorporated into the gel to increase the penetration ability and prolong drug retention time in periodontal tissues.
8p viwolverine 07-07-2023 5 3 Download
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Periodontitis is a chronic bacterial infection destroying tooth-supporting tissues. Like metronidazole, tinidazole (TNZ) is also effective in treating periodontitis. The preparation of polymeric nanoparticles containing TNZ helps to improve the solubility and increase the bioavailability of the drug. Objectives: This study aimed to formulate and optimize TNZ nanoparticles and evaluate their physicochemical properties.
9p viwolverine 07-07-2023 9 1 Download
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This study investigates the effect of synthesis methods on the physicochemical properties and catalytic activity of α-MnO2 catalysts in the complete oxidation of isopropanol. The catalysts were synthesized via redox-precipitation reactions by using dropwise and reflux methods and characterized by XRD, SEM, and N2 adsorption-desorption.
4p visteverogers 23-06-2023 12 4 Download
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This paper reports effects of ultraviolet (UV) light radiation on the physicochemical, electrical and mechanical properties of low-density polyethylene (LDPE) cable insulating materials. Changes in structural and morphological properties of UV-aged samples were characterized by various analytical methods such as attenuated total reflection Fourier transform infrared spectroscopy (ATRFTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM) and atomic force microscopy (AFM).
12p lyhuyenthu 31-01-2023 7 2 Download
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Herein, a performance analysis of La-doped copper-based catalysts (CuO/ZrO2 /La-Al2 O3 ) in methanol steam reforming (MSR) was conducted and compared with a commercial low temperature water-gas shift catalyst (HiFUEL W220) to produce H2 with low CO selectivity. The physicochemical properties of as-obtained catalysts were characterized by N2 adsorption, XRD, and ICP-OES. Effect of calcination temperature (750 ℃ and 1000 ℃) on the properties of mixed oxide support (La-Al2 O3 ) were discussed based on catalytic activity.
12p lyhuyenthu 31-01-2023 5 2 Download
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Synthesis, characterization, and antimicrobial evaluation of polyvinylalcohol-osthol composite films
Although poly-vinyl alcohol (PVA) has certain mechanical drawbacks such as a weak barrier, it has widely been used in food packaging over the last many years. To increase the suitability of PVA (C2H4O)n and render it ideal for food packaging, a diversity of studies have already been carried out. In the below-mentioned script, we, for the first time, report the use of natural product osthol in making a new composite with PVA for enhancing thermal, physicochemical, and antimicrobial properties.
15p lyhuyenthu 31-01-2023 4 3 Download
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The study "Characterization of arbuscular mycorrhizal fungal communities associated with vineyards in northwestern Iran" was aimed to investigate AMF spore density, species composition, mycorrhizal colonization patterns, and correlation of these indices with soil physicochemical parameters at four vineyards located in one of the most important grape-producing regions of Iran (West Azerbaijan province).
9p lyhuyenthu 31-01-2023 5 2 Download
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Peroxidases (PODs) have various physiological and biochemical roles in plant growth, development and stress response. The POD genes were identified in various plant species, but in passion fruit has not yet been thoroughly characterized. Here, we discovered 30 putative POD genes from the genome of Passiflora edulis Sims. For further elucidation, comprehensive bioinformatics analysis was utilized to determine the physicochemical properties, gene organization, conserved motifs, gene duplication and phylogenetic relationships of PePOD genes.
13p lyhuyenthu 31-01-2023 13 2 Download
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To propose a novel modeling of aflatoxin immunization and surrogate toxin conjugate from AFB1 vaccines, an immunogen based on the mimotope, (i.e. a peptide-displayed phage that mimics aflatoxins epitope without toxin hazards) was designed.
10p vihermione 06-01-2023 6 3 Download
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A water-soluble carboxymethylchitosan (CMC) was prepared in water/isopropanol (2/8) medium, at 10 °C, and characterized by UV–vis, FT-IR and NMR techniques. Its performance as an environmentally friendly scale inhibitor in oil wells was evaluated under the physicochemical conditions of oil wells in northeast of Brazil, by using SEM, visual compatibility and dynamic tube blocking test.
6p vihermione 06-01-2023 3 2 Download
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The production of a chitin-like exopolysaccharide (EPS) was optimized through experimental design methods, evaluating the influence of urea, phosphate, and glucose. Under optimized conditions, up to 1.51 g/L was produced and its physicochemical characteristics were evaluated by chromatography, NMR, and FTIR spectroscopy, and rheological techniques.
10p viginny 30-12-2022 10 2 Download
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Xylan extracted from corn cobs was used to produce mesalamine-loaded xylan microparticles (XMP5-ASA) by cross-linking polymerization using a non-hazardous cross-linking agent. The microparticles were characterized by thermal analysis (DSC/TG), X-ray diffraction (XRD), Infrared spectroscopy (FTIR-ATR) and scanning electron microscopy (SEM).
9p viginny 30-12-2022 8 2 Download