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Updated: Apr 21, 2026

3D Printing and In Situ Surface Modification via Type I Photoinitiated Reversible Addition-Fragmentation Chain Transfer Polymerization
Published on: February 18, 2022
UV-triggered dopamine polymerization: control of polymerization, surface coating, and photopatterning
Xin Du1, Linxian Li, Junsheng Li
1Institute of Toxicology and Genetics, Karlsruhe Institute of Technology, 76021, Karlsruhe, Germany; Department of Applied Physical Chemistry, University of Heidelberg, 69120, Heidelberg, Germany.
Abstract:
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.
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