UV-triggered dopamine polymerization: control of polymerization, surface coating, and photopatterning.
UV irradiation is demonstrated to initiate dopamine polymerization and deposition on different surfaces under both acidic and basic pH. The observed acceleration of the dopamine polymerization is explained by the UV-induced formation of reactive oxygen species that trigger dopamine polymerization. The UV-induced dopamine polymerization leads to a better control over polydopamine deposition and formation of functional polydopamine micropatterns.
Institute of Toxicology and Genetics, Karlsruhe Institute of Technology, 76021, Karlsruhe, Germany; Department of Applied Physical Chemistry, University of Heidelberg, 69120, Heidelberg, Germany.
Xin
X
Du
Linxian
L
Li
Junsheng
J
Li
Chengwu
C
Yang
Nataliya
N
Frenkel
Alexander
A
Welle
Stefan
S
Heissler
Alexei
A
Nefedov
Michael
M
Grunze
Pavel A
PA
Levkin
D004298:Dopamine / Q000737:chemistry*; D006863:Hydrogen-Ion Concentration; D007211:Indoles / Q000737:chemistry; D053758:Nanoparticles / Q000737:chemistry; D056951:Photoelectron Spectroscopy; D058105:Polymerization; D011108:Polymers / Q000737:chemistry; D017382:Reactive Oxygen Species / Q000737:chemistry; D018629:Spectrometry, Mass, Secondary Ion; D013499:Surface Properties; D014466:Ultraviolet Rays
D007211:Indoles; D011108:Polymers; D017382:Reactive Oxygen Species; C568283:polydopamine; D004298:Dopamine
UV polymerization; dopamine; patterning; polydopamine coatings; surface functionalization