Journal
SENSORS AND ACTUATORS B-CHEMICAL
Volume 253, Issue -, Pages 292-301Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2017.06.134
Keywords
Rhodamine B; Furfuran; Fe3+; Fluorescent sensor; Living cell imaging
Funding
- National Natural Science Foundation of China [81371616]
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A new furfuran-based rhodamine B fluorescent probe (RBFF) has been designed and synthesized, and its sensing behavior towards various metal ions was evaluated via UV-vis and fluorescence spectroscopic techniques. RBFF exhibits a highly sensitive and selective turn-on fluorescent response toward Fe3+ ion and a fluorescence turn-off response when added B4O72- to the RBFF-Fe3+ in the EtOH/H2O solution (1:1, v/v, HEPES, 1 mM, pH 7.20). The detection limit of RBFF for Fe3+ was calculated to be 0.025 mu M. The fluorescence microscopy experiment suggested that RBFF could also be served as a biological fluorescence probe for the detection of Fe3+ in human cervical carcinoma cells (HeLa). (C) 2017 Elsevier B.V. All rights reserved.
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