Results 31 to 40 of about 394,350 (343)

Update on Chitosan-Based Hydrogels: Preparation, Characterization, and Its Antimicrobial and Antibiofilm Applications

open access: yesGels, 2022
Chitosan is a prominent biopolymer in research for of its physicochemical properties and uses. Each year, the number of publications based on chitosan and its derivatives increases.
Kokila Thirupathi   +8 more
doaj   +1 more source

Microwave-enhanced synthesis of biodegradable multifunctional chitosan hydrogels for wastewater treatment [PDF]

open access: yes, 2017
Chitosan, a derivative of chitin, is a biodegradable polymer known of its favorable properties, applicable in medicine and industry. Commonly obtained chitosan hydrogels are of various swelling capacity, and may bind only anions losing their ...
Janus, Łukasz   +3 more
core   +1 more source

Antimicrobial Activity of Native Chitosan, Degraded Chitosan, and O-Carboxymethylated Chitosan

open access: yesJournal of Food Protection, 2003
The antimicrobial activity of native chitosan was compared to that of lipase-degraded chitosan. The effects of O-carboxymethylated (O-CM) substitution on native (molecular weight, 120; degree of deacetylation, 84.71%) and lipase-degraded chitosans were also investigated.
Hyun Jin Park   +4 more
openaire   +3 more sources

Determination of the Optimum Conditions for Production of Chitosan Nanoparticles [PDF]

open access: yesعلوم و تکنولوژی پلیمر, 2007
Bioedegradable nanoparticles are intensively investigated for their potential applications in drug delivery systems. Being a biocompatible and biodegradable polymer, chitosan holds great promise for use in this area. This investigation was concerned with
A. Dustgani   +2 more
doaj   +1 more source

Potential control of forest diseases by solutions of chitosan oligomers, propolis and nanosilver [PDF]

open access: yes, 2017
Producción CientíficaThere is a growing necessity to replace chemical agents with ecofriendly materials, arising from the impact on the environment and/or human health, which calls for the design of new broad-spectrum fungicides.
Díez Casero, Julio Javier   +5 more
core   +1 more source

Proteases and microwave treatment on the quality of chitin and chitosan produced from white shrimp (Penaeus vannamei)

open access: yeseFood, 2023
The aim of this study was to extract chitin and chitosan from shrimp shells by neutral protease‐assisted microwave multiple heating (one, two, three, and four) treatment.
Qiqi Dong   +6 more
doaj   +1 more source

Sulfanilic acid-modified chitosan mini-spheres and their application for lysozyme purification from egg white [PDF]

open access: yes, 2018
A cation exchange matrix with zwitterionic and multimodal properties was synthesized by a simple reaction sequence coupling sulfanilic acid to a chitosan based support. The novel chromatographic matrix was physico-chemically characterized by ss-NMR and ζ
Baieli, María Fernanda   +7 more
core   +1 more source

Facile synthesis of chitosan-capped ZnS quantum dots as an eco-friendly fluorescence sensor for rapid determination of bisphenol A in water and plastic samples [PDF]

open access: yes, 2014
This paper describes a novel eco-friendly fluorescence sensor for determination of bisphenol A (BPA) based on chitosan-capped ZnS quantum dots (QDs). By using safe and inexpensive materials, nontoxic ZnS QDs were synthesized via an environment-friendly ...
Bie, Jiaxin   +7 more
core   +1 more source

Preparations, properties and applications of chitosan based nanofibers fabricated by electrospinning

open access: yeseXPRESS Polymer Letters, 2011
Chitosan is soluble in most acids. The protonation of the amino groups on the chitosan backbone inhibits the electrospinnability of pure chitosan.
doaj   +1 more source

Chelation capability of chitosan and chitosan derivatives: Recent developments in sustainable corrosion inhibition and metal decontamination applications

open access: yesCurrent Research in Green and Sustainable Chemistry, 2021
Chemically, chitosan is composed of random distributed D-glucosamine and N-acetyl-D-glucosamine units joint together by β-1,4-glycosidic linkage. Chitosan and its derivatives are widely used as corrosion inhibition and removal metallic impurities ...
Chandrabhan Verma, M.A. Quraishi
doaj  

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