Calcium Ions Turn on the Fluorescence of Oxytetracycline for Sensitive and Selective Detection

被引：23

作者：

Chen, Hongxia ^{[1
]}

Peng, Junxiang ^{[1
]}

Yu, Long ^{[1
]}

Chen, Hui ^{[1
]}

Sun, Mingtai ^{[3
,4
]}

Sun, Zhenli ^{[1
]}

Ni, Runyan ^{[2
,3
,4
]}

Alamry, Khalid A. ^{[5
]}

Marwani, Hadi M. ^{[5
]}

Wang, Suhua ^{[1
,2
,3
,5
]}

机构：

[1] North China Elect Power Univ, MOE Key Lab Resources & Environm Syst Optimizat, Coll Environm Sci & Engn, Beijing 102206, Peoples R China

[2] North China Elect Power Univ, Coll Environm Sci & Engn, Beijing 102206, Peoples R China

[3] Guangdong Univ Petrochem Technol, Sch Environm Sci & Engn, Guangdong Prov Key Lab Petrochemcial Pollut Proc, Maoming 525000, Peoples R China

[4] Natl Univ Singapore Suzhou Res Inst, 377 Linquan St, Suzhou 215123, Jiangsu, Peoples R China

[5] King Abdulaziz Univ, Fac Sci, Dept Chem, Jeddah 21589, Saudi Arabia

来源：

JOURNAL OF FLUORESCENCE | 2020年 / 30卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Oxytetracycline (OTC); Fluorescent probe; Calcium ions; Calcium complex; Coordination; COMPLEXOMETRIC TITRATION; CARBON DOTS; TETRACYCLINE; CA2+; APTASENSOR; MAGNESIUM; ADSORPTION; INDICATOR; SENSOR; WASTE;

D O I：

10.1007/s10895-020-02512-3

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

Herein, we report an interesting finding about the new application of oxytetracycline (OTC), as a fluorescent probe for the detection of calcium ion (Ca2+), which proved that it can offer an expeditious, highly sensitive, and selective detection method for Ca2+. Upon the addition of Ca2+, the fluorescence of OTC could be significantly enhanced with rapid response and high sensitivity, and achieved a good limit of detection as low as 125 nM in aqueous solution. The complex formed via Ca2+ coordinating to the hydroxyl group of OTC contributes to the fluorescence enhancement, which has been proved by several characterization methods including UV-vis analysis, binding constant determination, and fluorescence titration. The method avoided complexity for EDTA measurement of Ca2+ in running water as proposed previously. Taking advantage of good availability, stability and operability, the OTC was further successfully applied to the detection of Ca2+ in a real environment. Graphical

引用

页码：463 / 470

页数：8

共 41 条

[1] A SPECTROPHOTOMETRIC INVESTIGATION OF THE INTERACTION OF IODINE WITH AROMATIC HYDROCARBONS [J].