| Literature DB >> 29674025 |
Yang Jiao1, Lu Zhou2, Haiyang He2, Jiqiu Yin3, Qianmiao Gao2, Junnan Wei2, Chunying Duan2, Xiaojun Peng2.
Abstract
A novel rhodamine based sensor RBH was developed and synthesized by rhodamine B with 3-methyl-2-benzothiazolinone hydrazone, which exhibited high selectivity and sensitivity for sensing Cu2+ ions in the presence of other important relevant metal ions in aqueous acetonitrile. As an "off-on" fluorescent sensor, RBH exhibited a UV-vis absorption increase at 570 nm and a 132-fold significant fluorescence enhancement at 580 nm with a distinct color change from colorless to purple upon the addition of Cu2+ ions. The fluorescence intensity of RBH is linear with the Cu2+ ions concentration with low limit of detection. Furthermore, the sensor RBH has been successfully utilized for fluorescence imaging of Cu2+ ions in living cells. The sensor could potentially recognize Cu2+ ions in biological system.Entities:
Keywords: Cu(2+) ions; Fluorescent sensor; Rhodamine B
Year: 2018 PMID： 29674025 DOI： 10.1016/j.talanta.2018.01.073
Source DB: PubMed Journal: Talanta ISSN： 0039-9140 Impact factor: 6.057