Results 301 to 310 of about 443,672 (355)
Some of the next articles are maybe not open access.
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.
openaire +2 more sources
Biomacromolecules, 2005
The traditional motivation for integrating biological components into microfabricated devices has been to create biosensors that meld the molecular recognition capabilities of biology with the signal processing capabilities of electronic devices. However, a different motivation is emerging; biological components are being explored to radically change ...
Hyunmin, Yi +6 more
openaire +2 more sources
The traditional motivation for integrating biological components into microfabricated devices has been to create biosensors that meld the molecular recognition capabilities of biology with the signal processing capabilities of electronic devices. However, a different motivation is emerging; biological components are being explored to radically change ...
Hyunmin, Yi +6 more
openaire +2 more sources
Biomaterials, Artificial Cells and Artificial Organs, 1990
Chitosan [a (1----4) 2-amino-2-deoxy-beta-D-Glucan] is a unique polysaccharide derived from chitin. Several attempts have been made to use this biopolymer in biomedical field. The use of this material in the development of hemodialysis membranes, artificial skin, drug targetting and other applications are discussed.
T, Chandy, C P, Sharma
openaire +2 more sources
Chitosan [a (1----4) 2-amino-2-deoxy-beta-D-Glucan] is a unique polysaccharide derived from chitin. Several attempts have been made to use this biopolymer in biomedical field. The use of this material in the development of hemodialysis membranes, artificial skin, drug targetting and other applications are discussed.
T, Chandy, C P, Sharma
openaire +2 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
openaire +2 more sources
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
openaire +2 more sources
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
openaire +2 more sources
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
Sintering of Chitosan and Chitosan Composites
Volume 3: Design, Materials and Manufacturing, Parts A, B, and C, 2012Chitosan is a naturally-occurring polymer that is derived through the deacetylation of chitin. Chitin, found in the exoskeletons of invertebrates, is ubiquitous in nature and easily collected as waste and repurposed for a multitude of industrial and biomedical applications.
Cynthia Brysch +3 more
openaire +1 more source
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
openaire +1 more source