Adhesion and Interfacial Interactions Promoted by Tannic Acid and 1,2,3,4-Butanetetracarboxylic Acid in Casein/Carboxymethylcellulose Bilayer Films.

ABSTRACT: The design of functional multilayer materials relies on interfacial phenomena that govern component compatibility, structural integrity, and material performance. Self-supporting films were produced by combining casein and carboxymethylcellulose (CMC) bilayer. Here, we incorporated tannic acid (TA) and 1,2,3,4-butanetetracarboxylic acid (BTCA) into CMC layers as protein- and polysaccharide-crosslinking additives at varying ratios to tailor interfacial energy. The incorporation of TA led to interlayer adhesion, as evidenced by the increased force required for bilayer delamination. Additionally, the reduced moisture adsorption capacity upon TA addition supports the occurrence of interfacial crosslinking with the casein layer. ATR-FTIR measurements in the delaminated faces suggested a structu

SUBMITTER: Franco GT 

PROVIDER: S-EPMC12312150 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature