title: Underwater Superoleophobic Surfaces Prepared from Polymer Zwitterion/Dopamine Composite Coatings.
abstract: Hydration is central to mitigating surface fouling by oil and microorganisms. Immobilization of hydrophilic polymers on surfaces promotes retention of water and a reduction of direct interactions with potential foulants. While conventional surface modification techniques are surface-specific, mussel-inspired adhesives based on dopamine effectively coat many types of surfaces and thus hold potential as a universal solution to surface modification. Here, we describe a facile, one-step surface modification strategy that affords hydrophilic, and underwater superoleophobic, coatings by the simultaneous deposition of polydopamine (PDA) with poly(methacryloyloxyethyl phosphorylcholine) (polyMPC). The resultant composite coating features enhanced hydrophilicity (i.e., water contact angle of ~10° in air) and antifouling performance relative to PDA coatings. PolyMPC affords control over coating thickness and surface roughness, and results in a nearly 10 fold reduction inEscherichia coliadhesion relative to unmodified glass. The substrate-independent nature of PDA coatings further promotes facile surface modification without tedious surface pretreatment, and offers a robust template for codepositing polyMPC to enhance biocompatibility, hydrophilicity and fouling resistance.
authors: Department of Polymer Science & Engineering, Conte Center for Polymer Research, 120 Governors Drive, University of Massachusetts, Amherst, MA 01003, USA.
authors: Chia-Chih
authors: CC
authors: Chang
authors: Department of Chemical Engineering, University of Massachusetts, Amherst, MA 01003, USA.
authors: Kristopher W
authors: KW
authors: Kolewe
authors: Department of Polymer Science & Engineering, Conte Center for Polymer Research, 120 Governors Drive, University of Massachusetts, Amherst, MA 01003, USA.
authors: Yinyong
authors: Y
authors: Li
authors: Department of Polymer Science & Engineering, Conte Center for Polymer Research, 120 Governors Drive, University of Massachusetts, Amherst, MA 01003, USA.
authors: Irem
authors: I
authors: Kosif
authors: Department of Chemical Engineering, University of Texas, Austin, TX 78758, USA.
authors: Benny D
authors: BD
authors: Freeman
authors: Department of Polymer Science & Engineering, Conte Center for Polymer Research, 120 Governors Drive, University of Massachusetts, Amherst, MA 01003, USA.
authors: Kenneth R
authors: KR
authors: Carter
authors: Department of Chemical Engineering, University of Massachusetts, Amherst, MA 01003, USA.
authors: Jessica D
authors: JD
authors: Schiffman
authors: Department of Polymer Science & Engineering, Conte Center for Polymer Research, 120 Governors Drive, University of Massachusetts, Amherst, MA 01003, USA.
authors: Todd
authors: T
authors: Emrick
keywords: dopamine; phosphorylcholine; polydopamine; superhydrophilic; surface modification; zwitterionic polymer