Results 41 to 50 of about 443,573 (256)

Chitosan-Cellulose Composite for Wound Dressing Material. Part 2. Antimicrobial Activity, Blood Absorption Ability, and Biocompatibility [PDF]

open access: yes, 2014
Chitosan (CS), a polysaccharide derived from chitin, the second most abundant polysaccharide, is widely used in the medical world because of its natural and nontoxic properties and its innate ability for antibacterial and hemostasis effects.
Altiok   +46 more
core   +2 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

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

A COMPLEX SURFACE FORMATION MODEL ON CHITOSAN ADSORPTION TO METALS [PDF]

open access: yes, 2006
The aim of the first year research is: to predict a complex surface formation between chitosan and metal ions. This prediction is according to the plot adsorptive capacity and the bonding tendency between chitosan and some metals.
Endang , Widjajanti Laksono, Dr., M. Si
core  

Isolation and characterization of chitosan from Ugandan edible mushrooms, Nile perch scales and banana weevils for biomedical applications

open access: yesScientific Reports, 2021
Of recent, immense attention has been given to chitosan in the biomedical field due to its valuable biochemical and physiological properties. Traditionally, the chief source of chitosan is chitin from crab and shrimp shells.
Kenneth Ssekatawa   +8 more
doaj   +1 more source

Global Requirements of Chitosan for Medical and Food Applications [PDF]

open access: yes, 2011
Chitosan is a biopolymer obtained by deacetylation of chitin which widely distribute in nature and biologically safe. This polymer exhibits several favor properties such as biodegradability, low toxicity and ability to form film hydrogel. Chitosan offers
Savitri, Emma   +2 more
core  

Chitosan complexes with amino acids and whey peptides: Sensory and antioxidant properties

open access: yesFoods and Raw Materials
Chitosan reacts with amino acids and hydrolyzed whey proteins to produce biologically active complexes that can be used in functional foods. The research objective was to obtain chitosan biocomposites with peptides and amino acids with improved ...
Tatsiana M. Halavach   +7 more
doaj   +1 more source

N-octyl chitosan derivatives as amphiphilic carrier agents for herbicide formulations

open access: yesOpen Chemistry, 2019
This study investigates the potential of N-octyl chitosan derivatives, namely N-octyl-O-sulfate chitosan (NOOSC), N-octyl-N-succinyl chitosan (NONSC) and N-octyl-O-glycol chitosan (NOOGC) as amphiphilic carrier agents for atrazine in water-insoluble ...
Kamari Azlan, Yusoff Siti Najiah Mohd
doaj   +1 more source

Mechanical Properties of Natural Chitosan/Hydroxyapatite/Magnetite Nanocomposites for Tissue Engineering Applications [PDF]

open access: yes, 2016
Chitosan (CS), hydroxyapatite (HA), and magnetite (Fe3O4) have been broadly employed for bone treatment applications. Having a hybrid biomaterial composed of the aforementioned constituents not only accumulates the useful characteristics of each ...
Akao   +57 more
core   +2 more sources

Autoclaving Achieves pH-Neutralization, Hydrogelation, and Sterilization of Chitosan Hydrogels in One Step

open access: yesMacromol
Conventionally, chitosan hydrogels are acidic and contain toxic chemicals because chitosan is soluble only in acidic solvents and requires toxic additives such as chemical crosslinkers and polymerization agents to fabricate chitosan hydrogels.
Yusuke Yamashita   +3 more
doaj   +1 more source

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