3 years ago

Synthesis and evaluation of a new furfuran-based rhodamine B fluorescent chemosensor for selective detection of Fe3+ and its application in living-cell imaging

Synthesis and evaluation of a new furfuran-based rhodamine B fluorescent chemosensor for selective detection of Fe3+ and its application in living-cell imaging
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 B4O7 2− to the RBFF-Fe3+ in the EtOH/H2O solution (1:1, v/v, HEPES, 1mM, pH 7.20). The detection limit of RBFF for Fe3+ was calculated to be 0.025μM. 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).

Publisher URL: www.sciencedirect.com/science

DOI: S092540051731153X

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