The apparent diffusion coefficients, Dapp, and the release mechanisms of Aloin-doped poly(phenylene vinylene)/polyacrylamide hydrogels, Aloin-doped PPV/PAAM, were investigated. In the absence of an electric field (passive release), the diffusion of Aloin from the SA-doped PPV/PAAM hydrogel is delayed in the first 36 hr due to the ionic interaction between the anionic drug and PPV. Beyond this p...

Hydrogels are one of the most appealing polymeric materials used for preparing sustained-release systems that have a great impact on pharmaceutical development and regenerative medicine. However, hydrogels generally have high permeability, which often leads to fast substance release. Extensively fast release will not only decrease the biological efficacy of the released substances, but also cau...

Abstract In this work, a double network bovine serum albumin-polyacrylamide (BSA-PAM) adhesive hydrogel was fabricated, in which combination of physical interactions including hydrogen bonds and chain entanglements, chemical covalent photo-crosslinking. The BSA-PAM exhibited excellent mechanical properties. composite not only demonstrated tensile properties (maximum force elongation 1552%~2037%...

Abstract Removal of Cu 2+ ions from contaminated water is an important but challenging task. This study reports the synthesis a composite hydrogel two natural polysaccharides, namely, sodium alginate and chitosan, using inexpensive kaolin as raw material polyacrylamide modifier. The had high adsorption capacity selectivity for . was characterized by Fourier transform infrared spectroscopy, X-ra...