Results 291 to 300 of about 1,732,403 (348)
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Carbohydrate Polymers, 2015
Conventional heating and microwave irradiation have been compared for the synthesis of chitosans grafted with alkyl chains. Reaction time (1-60 min), temperature (25 and 40 °C) and chitosan molar mass have been studied onto the yield of alkylation. The irradiation mode has been scrupulously controlled to highlight the effect of the use of microwaves ...
Petit, C., Reynaud, S., Desbrières, J.
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Conventional heating and microwave irradiation have been compared for the synthesis of chitosans grafted with alkyl chains. Reaction time (1-60 min), temperature (25 and 40 °C) and chitosan molar mass have been studied onto the yield of alkylation. The irradiation mode has been scrupulously controlled to highlight the effect of the use of microwaves ...
Petit, C., Reynaud, S., Desbrières, J.
openaire +3 more sources
International Journal of Biological Macromolecules, 2020
Chitosan is an abundant and renewable polysaccharide, and chemical modification can be used to enhance the biological properties of chitosan. In this study, monophenol and ortho-diphenol were introduced to chitosan through chemical modification to get ...
Qing Li +3 more
semanticscholar +1 more source
Chitosan is an abundant and renewable polysaccharide, and chemical modification can be used to enhance the biological properties of chitosan. In this study, monophenol and ortho-diphenol were introduced to chitosan through chemical modification to get ...
Qing Li +3 more
semanticscholar +1 more source
Carbohydrate Polymers, 2019
In this paper, a series of 6-O-imidazole-based quaternary ammonium chitosan derivatives via 6-O-chloroacetyl chitosan (CAClC) were successfully designed and synthesized.
Lijie Wei +7 more
semanticscholar +1 more source
In this paper, a series of 6-O-imidazole-based quaternary ammonium chitosan derivatives via 6-O-chloroacetyl chitosan (CAClC) were successfully designed and synthesized.
Lijie Wei +7 more
semanticscholar +1 more source
Carbohydrate Research
The second and most often utilized natural polymer is chitosan (CS), a naturally existing amino polysaccharide that is produced by deacetylating chitin.
G. Edo, Emad Yousif, M. Al-Mashhadani
semanticscholar +1 more source
The second and most often utilized natural polymer is chitosan (CS), a naturally existing amino polysaccharide that is produced by deacetylating chitin.
G. Edo, Emad Yousif, M. Al-Mashhadani
semanticscholar +1 more source
, 2020
Chitosan was synthesized from chitin; extracted from prawn shells’ powder via deacetylation and physicochemical properties were studied. Novel chitosan derivatives of 2-imidazolecarboxaldehyde and 2-thiophenecarboxaldehyde were synthesized by refluxing ...
M. Yadav, S. Pokhrel, P. Yadav
semanticscholar +1 more source
Chitosan was synthesized from chitin; extracted from prawn shells’ powder via deacetylation and physicochemical properties were studied. Novel chitosan derivatives of 2-imidazolecarboxaldehyde and 2-thiophenecarboxaldehyde were synthesized by refluxing ...
M. Yadav, S. Pokhrel, P. Yadav
semanticscholar +1 more source
Chitosan and Chitosan Derivatives in Drug Delivery and Tissue Engineering
2011Chitosan is a nontoxic, biodegradable, and biocompatible polysaccharide of β(1-4)-linked d-glucosamine and N-acetyl-d-glucosamine. This derivative of natural chitin presents remarkable properties that have paved the way for the introduction of chitosan in the biomedical and pharmaceutical fields.
Riva, Raphaël +5 more
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The improved antiviral activities of amino-modified chitosan derivatives on Newcastle virus
Drug and chemical toxicology (New York, N.Y. 1978), 2019Chitosan is widely used as a medical material because of its excellent biological activities. However, the low solubility of natural chitosan limited its medicinal activity to some extent.
Xiaofei He +6 more
semanticscholar +1 more source
Environmental Applications of Chitosan and Its Derivatives
2014Chitosan originates from the seafood processing industry and is one of the most abundant of bio-waste materials. Chitosan is a by-product of the alkaline deacetylation process of chitin. Chemically, chitosan is a polysaccharide that is soluble in acidic solution and precipitates at higher pHs.
Soon Kong, Yong +4 more
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Food Research International, 2019
To improve sustained-release property, stability and bioavailability of anthocyanins (ACNs) in vitro, we fabricated the nanocomplexes with chitosan hydrochloride (CHC), carboxymethyl chitosan (CMC) and β-Lactoglobulin (β-Lg). Response surface methodology
Jiao Ge +7 more
semanticscholar +1 more source
To improve sustained-release property, stability and bioavailability of anthocyanins (ACNs) in vitro, we fabricated the nanocomplexes with chitosan hydrochloride (CHC), carboxymethyl chitosan (CMC) and β-Lactoglobulin (β-Lg). Response surface methodology
Jiao Ge +7 more
semanticscholar +1 more source