Results 31 to 40 of about 348,213 (201)

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

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

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 chitosan nanoparticles

open access: yesBiotechnology & Biotechnological Equipment, 2021
Chitosan is a deacetylated chitin which is found naturally, particularly in fungal cell walls and crustacean shells. Chitosan is biocompatible and fully biodegradable and is extensively analyzed for antimicrobial property. Chitosan has also been explored
Samiyah Saeed Al-Zahrani   +2 more
doaj   +1 more source

The Microstructure, Antibacterial and Antitumor Activities of Chitosan Oligosaccharides and Derivatives

open access: yesMarine Drugs, 2022
Chitosan obtained from abundant marine resources has been proven to have a variety of biological activities. However, due to its poor water solubility, chitosan application is limited, and the degradation products of chitosan oligosaccharides are better ...
Dawei Yu   +9 more
doaj   +1 more source

Sustainable CO2 adsorbents prepared by coating chitosan onto mesoporous silicas for large-scale carbon capture technology [PDF]

open access: yes, 2015
In this article, we report a new sustainable synthesis procedure for manufacturing chitosan/silica CO2 adsorbents. Chitosan is a naturally abundant material and contains amine functionality, which is essential for selective CO2 adsorptions.
Ganin, Alexey Y.   +2 more
core   +1 more source

Synthesis, characterization and anticoagulant activity of chitosan derivatives

open access: yesSaudi Pharmaceutical Journal, 2020
Chitosan derivatives are reported as anticoagulants in the literature. This work was undertaken to develop novel chitosan derivatives as anticoagulants.
Mohd. Imran   +3 more
doaj   +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

Antitumor effect of therapeutic HPV DNA vaccines with chitosan-based nanodelivery systems [PDF]

open access: yes, 2014
Cervical cancer is the second-most-common cause of malignancies in women worldwide, and the oncogenic activity of the human papilloma virus types (HPV) E7 protein has a crucial role in anogenital tumors.
Atyabi, F.   +8 more
core   +8 more sources

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

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