Enhanced Electrogenerated Chemiluminescence in Thermoresponsive Microgels

被引:73
作者
Pinaud, Florent [1 ]
Russo, Lorenzo [1 ]
Pinet, Sandra [1 ]
Gosse, Isabelle [1 ]
Ravaine, Valerie [1 ]
Sojic, Neso [1 ]
机构
[1] Univ Bordeaux, ENSCBP, CNRS UMR 5255, Inst Mol Sci, F-33607 Pessac, France
关键词
TEMPERATURE-DEPENDENCE; SYSTEM; OXIDATION; HYDROGELS; EMISSION; ELECTROCHEMILUMINESCENCE; ACETONITRILE; EFFICIENCY; COMPLEXES; COLLOIDS;
D O I
10.1021/ja401011j
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The electrochemistry, photoluminescence and electrogenerated chemiluminescence of thermoresponsive redox microgels were investigated. For the first time, reversible ECL enhancement is demonstrated in stimuli-responsive 100-nm microgel particles. Such an unexpected amplification reached 2 orders of magnitude, and it is intrinsically correlated with the collapse of the microgel particles. The swell-collapse transition decreases the average distance between adjacent redox sites and favors the electron-transfer processes in the microgels resulting in the enhanced ECL emission.
引用
收藏
页码:5517 / 5520
页数:4
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