Stimulated reversal of the strong adhesion of catechol onto a silica surface. (27th December 2021)

• Record Type: Journal Article
• Authors: Ilyas, Muhammad; Mian, Shabeer Ahmad; Rauf, Abdur; Ahmed, Ejaz; Rahman, Gul; Sannyal, Arindam; Jang, Joonkyung
• Is Part Of: Bulletin of the Korean Chemical Society. Volume 43:Number 2(2022)
• Page Start: 210
• Page End: 214
• Publication Date: 2021-12-27
• Subjects: catechol -- desorption -- electric stimulus -- marine mussel -- silica surface; Chemistry -- Periodicals; 540.5
• DOI: 10.1002/bkcs.12454
• Languages: English
• ISSNs: 0253-2964

Abstract

Abstract: Marine mussels permanently adhere to various surfaces via catechol (1, 2‐dihydroxybenzene) functional groups. Such biofouling causes adverse effects, including the corrosion and dragging of a marine vessel. By using the density functional theory, we show an electrical stimulus detach a catechol molecule that strongly adhered to a silica surface. A moderate electric field significantly decreases the binding energy of catechol adhered to a dry or wet silica surface. Abstract : Catechol group of the mussel adhesive protein strongly adheres a silica surface, causing the adverse effect called fouling. The present first‐principles study demonstrates that this biofouling can be reversed by applying a moderate electrical field.