A novel turn-on colorimetric and fluorescent sensor for Fe3+ and its application in living cells

作者：Hu, Yang; Zhao, Fang; Hu, Shengli^*; Dong, Yingying; Li, Duanzhuo; Su, Zhenhong^*

来源：Journal of Photochemistry and Photobiology A: Chemistry , 2017, 332: 351-356.

DOI：10.1016/j.jphotochem.2016.09.006

• Rhodamine B
• Colorimetric
• Fluorescent sensor
• Fe3+
• Bioimaging

A novel turn-on colorimetric and fluorescent sensor 1 based on rhodamine B was developed as a colorimetric and fluorescent chemosensor for Fe3+. Upon addition of Fe3+ in aqueous ethanol, the 1 displayed a distinct color change from colorless to pink and a significant fluorescence enhancement, which can be directly detected by the naked eye. The stoichiometry of 1 to Fe3+ complex was found to be 1:1 and the detection limit was determined as low as 7.68 x 10(-7) M. The results suggest that the sensor 1 may provide a conveniently method for visual detection of Fe3+ with high sensitivity. Furthermore the sensor has been utilized for fluorescence imaging of Fe3+ in living cells.

• 出版日期2017-1-1
• 单位湖北理工学院; 湖北师范大学