Photo - electrically responsive dual - network alginate-based composite hydrogels for the controlled release of plant essential nutrients.

Hydrogel materials hold great potential in agriculture. In this study, a photo-electric controlled-release double-network hydrogel carrier was fabricated based on polyacrylamide (PAM) and sodium alginate (SA) with the montmorillonite (MMT). This double-network (DN) structure of Fe/SA-PAM-MMT (SPMFe) gel can efficiently improve stability of the carrier through radical polymerization and ion cross-linking reactions.

A study on the performance, structure, composition, and release behavior changes of polybutylene adipate terephthalic acid (PBAT) film during food contact.

Polybutylene adipate terephthalic acid (PBAT) is an emerging biodegradable material in food packaging. However, concerns have been raised regarding the potential hazards it could pose to food safety. In this study, the changes of PBAT films during food contact and the release of small molecules were inestigated by a multiscale approach.