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In the ever-evolving landscape of materials science, the pursuit of sustainable and high-performance materials has led to a renewed interest in biopolymer composites. These materials, which blend the natural advantages of biopolymers with the enhanced properties of composite structures, present a promising frontier for innovation across various ...
Mishra, Rahul, Mishra, Dinesh Kumar
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In the ever-evolving landscape of materials science, the pursuit of sustainable and high-performance materials has led to a renewed interest in biopolymer composites. These materials, which blend the natural advantages of biopolymers with the enhanced properties of composite structures, present a promising frontier for innovation across various ...
Mishra, Rahul, Mishra, Dinesh Kumar
+8 more sources
European Journal of Pharmaceutics and Biopharmaceutics, 2004
The derivatization of the primary amino groups of chitosan with coupling reagents bearing thiol functions leads to the formation of thiolated chitosans. So far, three types of thiolated chitosans have been generated: chitosan-cysteine conjugates, chitosan-thioglycolic acid conjugates and chitosan-4-thio-butyl-amidine conjugates.
Andreas, Bernkop-Schnürch +2 more
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The derivatization of the primary amino groups of chitosan with coupling reagents bearing thiol functions leads to the formation of thiolated chitosans. So far, three types of thiolated chitosans have been generated: chitosan-cysteine conjugates, chitosan-thioglycolic acid conjugates and chitosan-4-thio-butyl-amidine conjugates.
Andreas, Bernkop-Schnürch +2 more
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Ultrasonication of chitosan and chitosan nanoparticles
International Journal of Pharmaceutics, 2003The objective of this study was to evaluate the effects of ultrasonication on chitosan molecules and nanoparticles. Molecular weight (M(v)) of chitosan HCl (M(v) 146 kDa and degree of deacetylation (DD) 96%) decreased linearly with increasing duration and amplitude of ultrasonication. DD and FTIR absorption were unaffected.
Tang, E.S.K., Huang, M., Lim, L.Y.
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Chitosan and Thiolated Chitosan
2011Thiolated chitosans constitute an integral part of designated “thiomers”, which are thiolated polymers widely investigated for non-invasive drug delivery. In brief, thiomers display thiol-group-bearing ligands on their polymer backbone. Through thiol/disulfide exchange reactions and/or a simple oxidation process, disulfide bonds are formed between such
Federica Sarti +1 more
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International Journal of Biological Macromolecules, 2009
Chitosan, carboxymethyl chitosan (CMCS) and chitosan sulfates (CSS) with different molecular weight were modified by reacting with 4-hydroxyl-5-chloride-1,3-benzene-disulfo-chloride or 2-hydroxyl-5-chloride-1,3-benzene-disulfo-chloride to give 12 kinds of new hydroxylbenzenesulfonailides derivatives of them.
Zhimei, Zhong +3 more
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Chitosan, carboxymethyl chitosan (CMCS) and chitosan sulfates (CSS) with different molecular weight were modified by reacting with 4-hydroxyl-5-chloride-1,3-benzene-disulfo-chloride or 2-hydroxyl-5-chloride-1,3-benzene-disulfo-chloride to give 12 kinds of new hydroxylbenzenesulfonailides derivatives of them.
Zhimei, Zhong +3 more
openaire +2 more sources