Work

pH-Tolerant Wet Adhesion of Catechol Analogs

Year: 2024

Type: article

Abstract: The need for improved wet adhesives has driven research on mussel-inspired materials incorporating dihydroxyphenylalanine (DOPA) and related analogs of the parent catechol, but their susceptibility to oxidation limits practical application of these functionalities. Here, we investigate the molecular-level adhesion of the catechol analogs dihydroxybenzamide (DHB) and hydroxypyridinone (HOPO) as a function of pH. We find that the molecular structure of the catechol analogs influences their susceptibility to oxidation in alkaline conditions, with HOPO emerging as a particularly promising candidate for pH-tolerant adhesives for diverse environmental conditions.

Source: ACS Applied Materials & Interfaces

DOI: 10.1021/acsami.4c01740

Authors: George D. Degen, Syeda Tajin Ahmed, Parker R. Stow, Alison Butler, Roberto C. Andresen Eguiluz

Institutions: University of California, Santa Barbara, University of California, Merced

Language: English

Topic: Polymer Surface Interaction Studies

Subfield: Surfaces, Coatings and Films

Field: Materials Science

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $4,500