Results 21 to 30 of about 71,523 (300)

Tumor microenvironment penetrating chitosan nanoparticles for elimination of cancer relapse and minimal residual disease

open access: yesFrontiers in Oncology, 2022
Chitosan and its derivatives are among biomaterials with numerous medical applications, especially in cancer. Chitosan is amenable to forming innumerable shapes such as micelles, niosomes, hydrogels, nanoparticles, and scaffolds, among others.
Hossein Mahmudi   +7 more
doaj   +1 more source

Preparation of Some Eco-friendly Corrosion Inhibitors Having Antibacterial Activity from Sea Food Waste [PDF]

open access: yes, 2012
Chitosan is one of the important biopolymers and it is extracted from exoskeletons of crustaceans in sea food waste. It is a suitable eco-friendly carbon steel corrosion inhibitor in acid media; the deacetylation degree of prepared chitosan is more than ...
Hassan A. H. Shehata   +4 more
core   +1 more source

Concepts for Developing Physical Gels of Chitosan and of Chitosan Derivatives [PDF]

open access: yesGels, 2018
Chitosan macro- and micro/nano-gels have gained increasing attention in recent years, especially in the biomedical field, given the well-documented low toxicity, degradability, and non-immunogenicity of this unique biopolymer. In this review we aim at recapitulating the recent gelling concepts for developing chitosan-based physical gels.
Sacco, Pasquale   +5 more
openaire   +3 more sources

Novel Amino-Pyridine Functionalized Chitosan Quaternary Ammonium Derivatives: Design, Synthesis, and Antioxidant Activity

open access: yesMolecules, 2017
Chemical modification of chitosan is increasingly studied for its potential of providing new applications of chitosan. Here, a group of novel chitosan quaternary ammonium derivatives containing pyridine or amino-pyridine were designed and successfully ...
Qing Li   +4 more
doaj   +1 more source

Advanced Technologies for Oral Controlled Release: Cyclodextrins for oral controlled release [PDF]

open access: yes, 2011
Cyclodextrins (CDs) are used in oral pharmaceutical formulations, by means of inclusion complexes formation, with the following advantages for the drugs: (1) solubility, dissolution rate, stability and bioavailability enhancement; (2) to modify the drug ...
A Al-Omar   +153 more
core   +1 more source

Chitosan and chitosan derivatives: Recent advancements in production and applications in environmental remediation

open access: yesEnvironmental Advances, 2023
This review, which presents recent advancements in production and applications in environmental remediation of chitosan and chitosan derivatives, covers relevant literature in the last 7–8 years, which is nearly half-term of the 15-year period where the ...
Ibrahim Issahaku   +2 more
doaj   +1 more source

Synthesis, Characterization, and Antifungal Activity of Pyridine-Based Triple Quaternized Chitosan Derivatives

open access: yesMolecules, 2018
In this study, a series of triple quaternized chitosan derivatives, including 6-O-[(2-hydroxy-3-trimethylammonium)propyl]-2-N-(1-pyridylmethyl-2-ylmethyl)-N,N-dimethyl chitosan chloride (7), 6-O-[(2-hydroxy-3-trimethylammonium)propyl]-2-N-(1 ...
Lijie Wei   +6 more
doaj   +1 more source

Bimetallic au/ag metal superstructures from macromolecular metal complexes in solid-state [PDF]

open access: yes, 2013
Indexación: Web of Science; Scielo.Novel bimetallic Au/Ag superstructures have been prepared from solid-state pyrolysis of the macromolecular complexes Chitosan(MLn/M'Ln)n y PSP-4-PVPx( MLn/M'Ln)n with MLn = AuCl3 and M'Ln = Ag(CF3SO3)The ...
Bobadilla, Daniela   +3 more
core   +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

Chitosan-based Maillard self-reaction products: Formation, characterization, antioxidant and antimicrobial potential

open access: yesCarbohydrate Polymer Technologies and Applications, 2022
In this work, new chitosan derivatives (CS1-CS6) were obtained by short-term hydrothermal treatment. The formation of chitosan derivatives occurred through two simultaneous processes: hydrolysis and Maillard self-reaction.
Aliaksandr Kraskouski   +6 more
doaj   +1 more source

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