FLUORESCENT PET(PHOTOINDUCED ELECTRON-TRANSFER) SENSORS FOR CALCIUM-IONS - EXTENSION TO MULTIPLE FLUOROPHORES AND VIRTUAL SPACERS

被引：34
作者：
DE SILVA, AP
GUNARATNE, HQN
KANE, ATM
MAGUIRE, GEM
机构：
来源：
CHEMISTRY LETTERS | 1995年 / 02期
关键词：
D O I：
10.1246/cl.1995.125
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
New bifluorophoric sensors QCa3 and QCa4 show larger Ca2+-induced fluorescence enhancements and (for QCa4 only) lower Ca2+ binding constants than their monofluorophoric counterparts due to statistics and remote steric effects respectively. The PET sensor principle is extended to twisted biaryl systems which can give rise to twisted internal charge transfer (TICT) excited states by the re-examination of Tsien's rhod-2.
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页码：125 / 126
页数：2
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