Two-photon fluorescent probe for silver ion derived from twin-cyano-stilbene with large two-photon absorption cross section

被引：34
作者：
Huang, Chibao [1 ,2 ]
Ren, Anxiang [2 ]
Feng, Chenghao [2 ]
Yang, Nianfa [1 ]
机构：
[1] Xiangtan Univ, Key Lab Environmentally Friendly Chem & Applicat, Minist Educ, Coll Chem, Xiangtan 411105, Peoples R China
[2] Shaoguang Univ, Yingdong Bioengn Coll, Dept Agr Engn, Shaoguan 512005, Peoples R China
来源：
SENSORS AND ACTUATORS B-CHEMICAL | 2010年 / 151卷 / 01期
基金：
中国国家自然科学基金; 中国博士后科学基金;
关键词：
Silver ion; Fluorophore; Two-photon absorption cross section; Sensor; Twin-cyano-stilbene; LIVE CELLS; ONE-PHOTON; EXCITATION; DERIVATIVES; RESISTANCE; CA2+; ACCUMULATION; SELECTIVITY; ACTIVATION; CALCIUM;
D O I：
10.1016/j.snb.2010.09.013
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A two-photon sensor for silver ion derived from twin-cyano-stilbene as the fluorophore is reported. The sensor exhibits remarkably large two-photon absorption cross sections (delta(TPA)) whose value is as high as 950 GM in MeCN, high sensitivity to and selectivity for silver ion, and emits strong two-photon fluorescence when excited by 790 rim laser photons. The sensor can be used to detect trace Ag+, and its binding constant (log K) for Ag+ is as high as 5.76 +/- 0.05. The successful applications of the sensor provide a brilliant prototype for the development of ideal two-photon fluorescence probes. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：236 / 242
页数：7
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