Functional Coating from Amyloid Superwetting Films

• DOI: 10.1002/adma.202205072
• Publication Date: 2022-09-27T10:24:30Z
• Authors: Tonghui Jin; Mohammad Peydayesh; Mingqin Li; Yang Yao; Di Wu; Raffaele Mezzenga
• Keywords: Biofouling; Biocompatible material; Superhydrophobic coating

Tailoring the hydrophilicity of solid surfaces with a strong affinity to water has been extensively explored in last 20 years, but studies have limited single function wettability. Here, multifunctional properties tailored surface films are extended from exhibiting superwettability facilitating biological activities. It is shown that amyloid fibrils can be universally coated onto various substrates, such as fabrics (non-woven organic masks), metal meshes, polyethersulfone (PES), glass, and more, endowing resulting excellent performance oil/water mixture emulsion separation, antifouling, antifogging. Moreover, biocompatible crosslinked fibril coatings serve platform for biocatalytic activities by immobilizing enzymes, 2,2'-azino-bis (3-ethylbenzothiazoline-6-sulphonic acid) diammonium salt (ABTS) oxidation Reactive Black 5 (RB5) degradation laccase Trametes versicolor. The study provides universal approach modifying morphology chemical via fibrous protein templates, opening way unexplored bio-based applications functionalities.