三苯胺
激进的
乙腈
光化学
化学
水溶液
氧化还原
溶剂
组合化学
核化学
抗菌活性
有机化学
细菌
生物
遗传学
作者
Luqi He,Jiao Tan,Chun Liu,Shouting Wu,Qi‐Long Zhang,Carl Redshaw,Xin‐Long Ni
标识
DOI:10.1002/slct.202201155
摘要
Abstract Herein, a series of triphenylamine derivatives ( TPAs ), which are comprised of electron donor and acceptor moieties, have been exploited as sensitive colorimetric sensors for Cu 2+ , operating via the formation of the corresponding organic radicals through a redox reaction in a mixed solvent system (acetonitrile/water). Further studies indicated that the Cu 2+ recognition triggered organic radical cations were stable in aqueous solution, and can be used as an antibacterial agent for both Escherichia coli ( E. coli ) and Staphylococcus aureus ( S. aureus ) at very low concentrations (10 −7 M). On comparison with light irradiated photodynamic therapy triggered radicals, the present work reveals that the direct use of radical cations of TPAs is more convenient for practical applications in killing bacteria. This work thus provides new insight into the design of sensitive colorimetric sensors and antibacterial agents.
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