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Chitosan derivatives
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Part 2 book "Seafood processing" includes content: Use of seafood processing by products in the animal feed industry; potential uses of lactic acid bacteria in seafood products; chitin and its beneficial activity as an immunomodulator in allergic reactions; chitosan nanoparticles - preparation, characterization, and applications; chitin, chitosan, and their derivatives against oxidative stress and inflammation, and some applications; lipid bodies isolated microalgae residues as a source for bioethanol production,... and other contents.
276p
muasambanhan01
13-12-2023
5
3
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The valorization of shrimp wastes to develop advanced materials brings economic and environmental advantages. This paper presents a facile and eco-friendly synthesis of shrimp chitosan-derived carbon (CCS) and CCS/NiO@Ni(OH)2 (CSSN) aerogel nanocomposite for supercapacitor application, in which NiO and Ni(OH)2 nanoparticles were tightly attached to the porous surface of CCS aerogel.
10p
viberbers
09-08-2023
7
3
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Foot ulcers, a common complication of diabetes, can cause physical incapacity and are derived from several factors, including poor wound healing. New therapeutic strategies are needed to minimize this complication for the sake of patients’ health.
10p
vicedric
08-02-2023
6
1
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This study consisted of a novel potential adsorbent material that could efficiently remove chromium (VI) from aqueous solutions. The optimum operating conditions were investigated including pH, agitation period. In this research, biochar derived from fountain grass (Pennisetum setaceum) coated with glutaraldehyde-crosslinked chitosan and treated with succinic acid to add functional groups was used to create an eco-friendly sorbent (CPES).
6p
vicedric
08-02-2023
2
1
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In this study, it was aimed to obtain 3D scaffolds using medical grade chitosan (MC) with a high deacetylation degree (DD ≥ 92.6%) to overcome the spheroid formation of rat adipose tissue derived mesenchymal stem cells (rAdMSCs) on control chitosan (C, DD = 75%–85%) scaffolds. Genipin was used as a biological chemical crosslinker, and glycerol phosphate salt was used both as a pH adjusting agent and physical crosslinker.
13p
lyhuyenthu
31-01-2023
14
2
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Chitosan-sheath and -chitin-core nanowhiskers (CsNWs) have been successfully generated by surface deacetylation of chitin nanowhiskers (CtNWs) in the never-dried state. Acid hydrolysis (3N HCl, 30 mL/g, 104 ◦C) of pure chitin derived from crab shell yielded 65% 4–10 nm thick, 16 nm wide and 214 nm long chitin whiskers (CtNWs) that were 86% crystalline and 81% acetylated.
9p
vihermione
06-01-2023
16
2
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A quaternized derivative of chitosan, namely N-(2-hydroxy)-propyl-3-trimethylammonium chitosan chloride (QCh), was synthesized by reacting glycidyltrimethylammonium chloride (GTMAC) and chitosan (Ch)in acid medium under microwave irradiation.
10p
vihermione
06-01-2023
5
2
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Chitosan is a polysaccharide with recognized antioxidant, antimicrobial and wound healing activities. However, this polymer is soluble only in dilute acidic solutions, which restricts much of its applications.
11p
vihermione
06-01-2023
7
2
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Biodegradability and ecotoxicity of products used in oil industry are of great relevance and corrosion inhibitor could not be an exception. In earlier reports, chitosan and some derivatives were evaluated as corrosion inhibitors at acid pH, mainly due to polymer solubility.
6p
vihermione
06-01-2023
10
2
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In this study, Schiff bases of chitosan (CS) were synthesized using citronellal, citral, and their derivatives containing selenium and sulfur. Organoselenium and organosulfur compounds show attractive biological and pharmaceutical activities, which can be beneficial to CS-based materials.
11p
vihermione
06-01-2023
4
2
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Multifunctional and biofunctional coatings for medical devices are an attractive strategy towards tailoring the interactions of the device with the body, thereby influencing the host response, and the susceptibility to microbial colonization. Here we describe the development of a coating process to yield amphiphilic, lubricious coatings, resistant to bacterial colonization, based on chitosan.
11p
vihermione
06-01-2023
3
2
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Oromucosal administration is an attractive non-invasive route. However, drug absorption is challenged by salivary flow and the mucosa being a significant permeability barrier. The aim of this study was to design and investigate a multi-layered nanofiber-on-foam-on-film (NFF) drug delivery system with unique properties and based on polysaccharides combined as i) mucoadhesive chitosan-based nanofibers, ii) a peptide loaded hydroxypropyl methylcellulose foam, and iii) a saliva-repelling backing film based on ethylcellulose.
10p
vihermione
30-12-2022
42
2
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In the present study, supramolecular polyelectrolyte complexes (SPEC) based on a cyclodextrin-grafted chitosan derivative and carrageenan were prepared and evaluated for controlled drug release. Samples were characterized by FTIR, SEM, and ζ-potential measurements, which confirmed the formation of the polymeric complex.
13p
viginny
30-12-2022
7
3
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We report herein a new chemical platform for coupling chitosan derivatives to antimicrobial peptide dendrimers (AMPDs) with different degrees of ramification and molecular weights via thiol-maleimide reactions. Previous studies showed that simple incorporation of AMPDs to polymeric hydrogels resulted in a loss of antibacterial activity and augmented cytotoxicity to mammalian cells.
15p
viginny
30-12-2022
9
2
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The aim of the present work was that of producing low molecular weight chitosans that have higher solubility and can remain protonated at physiological pH, thus enhancing the antimicrobial action. This was achieved by reacting acid hydrolysed low molecular weight chitosan with 2-bromoethyleneamine hydrobromide or Fmoc-Lys(Fmoc)-OH to elicit N-(2-ethylamino)-chitosan and N-2(2,6-diaminohexanamide)-chitosan polymers.
11p
viginny
30-12-2022
6
2
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"The journal of Nuclear science and technology - Volume 10/Number 3, 2020" presentExperimental investigation of hydrodynamic phenomena in vertical-upward adiabatic two-phase flow conditions; comparison and evaluation for the dose distribution and physical characteristics between two AAA and AXB algorithms in Eclipse v13.6 software on treatment plans in regions heterogenous densities at 108 Military Central Hospital; radiation-crosslinked scaffolds from gelatin/CM-chitin and gelatin/CM-chitosan hydrogels for adipose-derived stem cell culture…
64p
trinhthamhodang1218
14-03-2021
24
2
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This work characterizes the scaffolds derived from gelatin/CM-chitosan and gelatin/CM-chitin hydrogels obtained by radiation-crosslinking in combination with freeze-drying and radiation sterilization for further applications.
9p
trinhthamhodang1218
14-03-2021
11
2
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Adhesion to intestinal epithelial cells is commonly analyzed during investigations on potential probiotic activity of certain bacteria. The aim of the present study was to investigate whether different prebiotics affect the adhesion properties of three strains lactobacilli (Lactobacillus rhamnosus 1010, Lactobacillus acidophilus11, and Lactobacillus paracasei 8458).
11p
caygaocaolon8
07-11-2020
6
1
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Many water-soluble N-substituted chitosan derivatives have been prepared having the typical - NH-CH2- linkage. Both the Michael reaction and alkylation with monochloroacetic acid at pH 8 - 8.5 offer relatively simple ways for their synthesis.
10p
12120609
01-06-2020
10
0
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Pea powdery mildew is an air-borne disease of worldwide distribution. It is particularly damaging in late sowings or in late maturing varieties. It is caused by Erysiphe pisi. In order to bring residue free peas, there is need to manage these diseases through ecofriendly measures such as by using the chitosan which is antifungal as well as induces resistance in plants. GI chitosan is a deacetylated derivative of chitin obtained by gamma irradiation of chitosan.
7p
nguaconbaynhay4
22-03-2020
14
2
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