Results 81 to 90 of about 571,765 (409)
Production and characterization of chitosan and glycerol-chitosan films
MRS Advances, 2018 This work presents the study of the isolation of chitin from residues of the Patagonian shrimp (Pleoticus muelleri), and its subsequent conversion to chitosan under different reaction conditions. The obtained products were characterized by evaluating their molecular weight (Mw) and degree of deacetylation (DD).
Castelló, María Emilia +3 more
openaire +4 more sources
Advancing Wildfire‐Retardant Materials: Engineering Strategies for Direct and Indirect Suppression
Advanced Engineering Materials, EarlyView.Here, the evolution, ecological impact, and performance of current fire‐retardant materials and suppression strategies are reviewed, offering an engineering perspective to address existing challenges and propose pathways for the development of more effective, scalable, and sustainable solutions to meet the demands of a changing climate. Wildfires cause
Changxin Dong +4 more
wiley +1 more source
Preparation and Optimization of Labeled Chitosan Nanoparticles and Evaluation of their Release from Transdermal Drug Delivery System [PDF]
علوم و تکنولوژی پلیمر, 2015 Biocompatible nanoparticles are widely used in biomedical engineering. In this study, chitosan nanoparticles were prepared using ionic gelation method in view of two determining factors namely method of adding chitosan into the tripolyphosphate (TPP ...
Mohsen Sadeghi +2 more
doaj +1 more source
Molecules, 2021 The quality of water is continuously under threat as increasing concentrations of pollutants escape into the aquatic environment. However, these issues can be alleviated by adsorbing pollutants onto adsorbents.
Daniele C da Silva Alves +4 more
semanticscholar +1 more source
Global Requirements of Chitosan for Medical and Food Applications [PDF]
, 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
Fragmentation of Chitosan by Acids [PDF]
The Scientific World Journal, 2013 Fragmentation of chitosan in aqueous solution by hydrochloric acid was investigated. The kinetics of fragmentation, the number of chain scissions, and polydispersity of the fragments were followed by viscometry and size exclusion chromatography. The chemical structure and the degree of N‐acetylation (DA) of the original chitosan and its fragments were ...
Mohammad Reza Kasaai +2 more
openaire +4 more sources
Advanced Functional Materials, EarlyView.This work presents an overview of the PTC‐VMD system for water‐hydrogen co‐generation. a) Illustration of the hydrogel‐based PTC membrane and the co‐generation of water and hydrogen. b) Structure of the PTC‐VMD system and the functions of each component layer.
Jiawei Sun +7 more
wiley +1 more source
MacromolConventionally, 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
SYNTHESIS AND CHARACTERIZATION OF STARCH-CHITOSAN COMPOSITES [PDF]
, 2008 In this experiment, the composites based on chitosan-starch were synthesized at different weight ratios (3/7, 4/6, 5/5, 6/4, 7/3, 8/2, 9/1) by using 4 %v of glycerol as plasticizer.
., Kenfat +4 more
core
Advanced Functional Materials, EarlyView.The MPTT‐nanozyme‐hydrogel system (Mn3O4@ChS‐HA) provides a multifunctional therapeutic strategy for intervertebral disc degeneration (IVDD), effectively targeting oxidative stress and enhancing AF repair by restoring extracellular matrix (ECM) and redox homeostasis.
Yangyang Chen +13 more
wiley +1 more source