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Determination of the degree of substitution of modified chitosan by cyclic voltammetry at water/dichloroethane interface
(Elsevier, 2014-12)
The electrochemical behavior of the cationic polymer chitosan-gtmac (Ch-GTMAC), at the polarized water / 1,2-dichloroethane interface was studied. This polymer was obtained by nucleophilic reaction of chitosan (Ch) with ...
Chitosan derivatives targeting lipid bilayers: Synthesis, biological activity and interaction with model membranes
(2017-01-01)
The antimicrobial activity of chitosan and derivatives to human and plant pathogens represents a high-valued prospective market. Presently, two low molecular weight derivatives, endowed with hydrophobic and cationic character ...
Chitosan derivatives targeting lipid bilayers: Synthesis, biological activity and interaction with model membranes
(2018-02-01)
The antimicrobial activity of chitosan and derivatives to human and plant pathogens represents a high-valued prospective market. Presently, two low molecular weight derivatives, endowed with hydrophobic and cationic character ...
Quaternized chitosan as support for the assembly of gold nanoparticles and glucose oxidase: Physicochemical characterization of the platform and evaluation of its biocatalytic activity
(Pergamon-Elsevier Science Ltd, 2011-01)
We report for the first time the use of quaternized chitosan (QCHI) for the immobilization of gold nanoparticles (NP) and glucose oxidase (GOD), the characterization of the resulting platform and its biocatalytic activity ...
Trimethylchitosan hydrochloride obtained from lobster carapace chitin on a bench scale
(Biointerface Research Applied Chemistry, 2019-10-15)
Starting from the chitin obtained from the lobster carapace, chitosan was obtained. This polymer, due to its high biodegradability, biocompatibility and mucoadhesivity, has a wide use in the pharmaceutical and food industry. ...
N-(2-hydroxy)-propyl-3-trimethylammonium, o-mysristoyl chitosan enhances the solubility and intestinal permeability of anticancer curcumin
(2018-12-01)
An amphiphilic derivative of chitosan containing quaternary ammonium and myristoyl groups, herein named as ammonium myristoyl chitosan (DMCat), was synthesized by reacting glycidyltrimethylammonium chloride (GTMAC) and ...
Optimization of N, N, N-trimethylchitosan synthesis by factorial design
(Wiley-blackwellMaldenEUA, 2011)
Quaternized chitosan mediated assembly of gold nanoparticles multilayers
(Pergamon-Elsevier Science Ltd., 2014-12)
Self-assembled multilayers of quaternized chitosan (QCHI) and gold nanoparticles (AuNPs) were built up on quartz and gold substrates. To evaluate the effect of the surface coverage of AuNPs on the structural, optical and ...
Synthesis and characterization of water-soluble dendronized chitosan using newkome-type dendrons
(ACS, 2014-09)
With increasing emphasis on environmental care 7 and use of renewable resources, simple and effective dendroniza- 8 tion processes were performed to obtain chitosan derivatives. We 9 present different alternatives for ...
N-(2-hydroxy)-propyl-3-trimethylammonium, O-palmitoyl chitosan: Synthesis, physicochemical and biological properties
(Elsevier B.V., 2021-05-01)
Two samples of N-(2-hydroxy)-propyl-3-trimethylammonium, O-palmitoyl chitosan (DPCat) with different av-erage degrees of quaternization named as DPCat35 (DQ = 35%) and DPCat80 (DQ = 80%), were successfully syn-thesized by ...