ROLE OF TWISTED INTRAMOLECULAR CHARGE-TRANSFER IN THE FLUORESCENCE SENSITIVITY OF BIOLOGICAL PROBES - DIETHYLAMINOCOUMARIN LASER-DYES

被引：78

作者：

NAG, A ^{[1
]}

BHATTACHARYYA, K ^{[1
]}

机构：

[1] INDIAN ASSOC CULTIVAT SCI,DEPT PHYS CHEM,CALCUTTA 700032,W BENGAL,INDIA

来源：

CHEMICAL PHYSICS LETTERS | 1990年 / 169卷 / 1-2期

关键词：

D O I：

10.1016/0009-2614(90)85156-7

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

7-diethylamino coumarins exhibit large enhancement of fluorescence yield upon binding to bovine serum albumin. It is argued that the polarity-depednent twisted intramolecular charge transfer (TICT) process is responsible for the remarkable fluorescence sensitivity of these biological fluorophores to the environment. The reduction in the rate of TICT in the hydrophobic interior of albumin leads to the increase of fluorescence yield and lifetime. © 1990.

引用

页码：12 / 16

页数：5