期刊
LANGMUIR
卷 35, 期 5, 页码 1227-1234出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.langmuir.8b03454
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资金
- National Research Foundation of Korea (NRF) - Ministry of Science and ICT (MSIT) [NRF-2016R1A1A1A05921718, NRF-2016R1C1B2008034]
- R&D Program of the Korea Railroad Research Institute, Republic of Korea
We synthesized a zwitterionic dopamine derivative (ZW-DOPA) containing both catechol and amine groups, and we demonstrated an excellent marine antifouling surface by controlling the oxidation of ZW-DOPA. The oxidation was mediated by the deprotonation of catechol or the addition of an oxidant (ammonium persulfate (AP) or sodium periodate (NaIO4)). The oxidation and subsequent molecular transformation of ZW-DOPA was investigated over time by UV-vis spectroscopy. Among the different oxidation conditions tested, NaIO4-induced ZW-DOPA coating was the most efficient and successfully formed on various substrates, such as titanium dioxide, stainless steel, and nylon. Compared with uncoated substrates, ZW-DOPA-coated substrates showed high resistance to marine diatom adhesion. Considering the ease of use and substrate independence of the ZW-DOPA coating, this method shows promise as a basis for inhibiting marine fouling on a variety of substrates used in the marine industry and aquatic environments.
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