title: Multisignaling optical-electrochemical sensor for Hg2+ based on a rhodamine derivative with a ferrocene unit.
abstract: A new multisignaling sensor based on rhodamine B with a ferrocene substituent (1) has been synthesized and has been shown to display extreme selectivity for Hg2+ over other metal ions. Multisignaling changes are observed through UV/vis absorption, fluorescence emission, and electrochemical measurements. Furthermore, by means of confocal laser scanning microscopy experiments, it is demonstrated that 1 can be used as a fluorescent probe for monitoring Hg2+ in living cells.
authors.affiliation: Department of Chemistry & Laboratory of Advanced Materials, Fudan University, Shanghai, People's Republic of China.
authors.forename: Hong
authors.initials: H
authors.lastname: Yang
authors.forename: Zhiguo
authors.initials: Z
authors.lastname: Zhou
authors.forename: Kewei
authors.initials: K
authors.lastname: Huang
authors.forename: Mengxiao
authors.initials: M
authors.lastname: Yu
authors.forename: Fuyou
authors.initials: F
authors.lastname: Li
authors.forename: Tao
authors.initials: T
authors.lastname: Yi
authors.forename: Chunhui
authors.initials: C
authors.lastname: Huang
mesh_terms: D002413:Cations, Divalent / Q000737:chemistry; D002460:Cell Line; D003116:Color; D004563:Electrochemistry; D005296:Ferrous Compounds / Q000737:chemistry*; D008628:Mercury / Q000737:chemistry*; D000075163:Metallocenes; D015394:Molecular Structure; D012235:Rhodamines / Q000737:chemistry*; D013053:Spectrophotometry
chemical_list: D002413:Cations, Divalent; D005296:Ferrous Compounds; D000075163:Metallocenes; D012235:Rhodamines; D008628:Mercury; C029773:rhodamine B; C004998:ferrocene