title: Assembly of poly(dopamine) films mixed with a nonionic polymer.
abstract: Poly(dopamine) (PDA) coatings have recently attracted considerable interest for a variety of applications. Here, we investigate the film deposition of dopamine mixed with a nonionic polymer (i.e., poly(ethylene glycol) (PEG), poly(vinyl alcohol) (PVA), and poly(N-vinyl pyrrolidone) (PVP)) onto silica substrates using X-ray photoelectron spectroscopy and quartz crystal microbalance. Furthermore, we assess the possibility of coating silica colloids to yield polymer capsules and liposomes with these mixtures. We found that mixed PDA/PEG and PDA/PVA films are deposited without the need for a covalent linker such as an amine or thiol. We also discovered the first material, namely, PVP, that can suppress PDA film assembly. These fundamental findings give further insight into PDA film properties and contribute to establish PDA as a widely applicable coating.
authors.affiliation: State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Material Science and Engineering, Donghua University, Shanghai, People's Republic of China.
authors.forename: Yan
authors.initials: Y
authors.lastname: Zhang
authors.forename: Bo
authors.initials: B
authors.lastname: Thingholm
authors.forename: Kenneth N
authors.initials: KN
authors.lastname: Goldie
authors.forename: Ryosuke
authors.initials: R
authors.lastname: Ogaki
authors.forename: Brigitte
authors.initials: B
authors.lastname: Städler
mesh_terms: D001672:Biocompatible Materials / Q000737:chemistry*; D005240:Feasibility Studies; D007211:Indoles / Q000737:chemistry*; D008081:Liposomes / Q000737:chemistry; D011108:Polymers / Q000737:chemistry*; D012822:Silicon Dioxide / Q000737:chemistry
chemical_list: D001672:Biocompatible Materials; D007211:Indoles; D008081:Liposomes; D011108:Polymers; C568283:polydopamine; D012822:Silicon Dioxide