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.

Surface engineering of polymer membranes via mussel-inspired chemistry

“…Zhang et al immersed substrates into the solution containing dopamine and non-ionic polymers for co-deposition coatings [133], and found that PEG and polyvinyl alcohol (PVA) are trapped in the PDA coating without any covalent bonding, while strong hydrogen-bond acceptor like poly(N-vinyl pyrrolidone) (PVP) would suppress the assembly of PDA and decrease the deposition amount of PDA. Taking advantage of the strong hydrogen bond between PDA and PVP, Jiang et al fabricated an PVP/iodine complex layer on the surface of PDA-coated PE microfiltration membrane, which grants the membrane excellent and stable anti-fouling and antibacterial properties [116].…”

High Ionic Strength Formation of DOPA‐Melanin Coating for Loading and Release of Cationic Antimicrobial Compounds

“…[19,20] Molecules of interest can also be co-deposited simultaneously with dopamine in a one-step reaction to create surfaces with desired properties. [21–23] …”

Rupturing cancer cells by the expansion of functionalized stimuli-responsive hydrogels

“…28 Polymers deposited using this method include dextran, poly(sulfobetaine methacrylate) and several nonionic polymers. [29][30][31] These depositions, however, have poor chemical stability and poor resistance to acidic solvents because the polymers are not covalently bonded to the PDA. Alternatively, a method has been developed to copolymerize dopamine with polyethyleneimine, Rupturing cancer cells by the expansion of functionalized stimuli-responsive hydrogels Y Fang et al which is an amino-rich polymer.…”