Aqueous Two-Phase Systems (ATPS) are aqueous droplets dispersed in an phase. This specific behavior arises from interactions between at least two water-soluble entities, such as thermodynamically incompatible polymers. A simple, fast, and “green” process to produce ATPS with core would be of high interest the pharmaceutical field for drug delivery. However, date, rapid destabilization represent...

Abstract Chitosan is a polysaccharides compound derived from nature and has an amine group hydroxyl that gives it unique physicochemical properties, which are polychationic chelating agent. This shows chitosan can be used as stabilizer reducer of Ag nanoparticles. Unlike other studies, was in this study Black Soldier Fly exuviae been through demineralization, deproteination, depigmentation, dea...

The abilities of two types of chitosan oligosaccharides, chitosan oligosaccharide I (1-kDa<MW<3-kDa) and chitosan oligosaccharide II (3-kDa<MW<5-kDa), to prevent 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD)-induced oxidative stress were examined in ICR mice. Chitosan oligosaccharide I had no effect on TCDD-induced alterations in lipid peroxidation and glutathione S-transferase activity or liver w...

BACKGROUND The purpose of this study was to develop a self-aggregated nanoparticulate vehicle using an amphiphilic poly(lactic acid)-grafted-chitosan (PLA-g-CS) copolymer and to evaluate its potential for ocular delivery of amphotericin B. METHODS A PLA-g-CS copolymer was synthesized via a "protection-graft-deprotection" procedure and its structure was confirmed by Fourier transform infrared ...

In this study, chitosan (CS) grafted by glycidyltrimethylammonium chloride (GTMAC) to form GTMAC-CS was synthesized, chemically identified, and rheologically characterized. The Maxwell Model can be applied to closely simulate the dynamic rheological performance of the chitosan and the GTMAC-CS solutions, revealing a single relaxation time pertains to both systems. The crossover point of G' and ...

Modification of chitosan biopolymer was achieved by grafting (3-phenyl-1H-pyrazole-4-carbaldehyde) by the Schiff base reaction to synthesize a new chitosan derivative (ChD). The formation of the product was confirmed by FTIR, XRD and CNMR analysis. The grafted molecule provided additional nitrogen bearing groups as binding sites. The new derivative was used to investigate the removal of Cr (VI)...