title: A novel colorimetric and off-on fluorescent chemosensor for cr(3+) in aqueous solution and its application in live cell imaging.
abstract: A novel colorimetric and off-on fluorescent chemosensor 2 was designed and synthesized, which showed reversible and highly selective and sensitive recognition toward Cr(3+) over other examined metal ions in aqueous solution. Upon addition of Cr(3+), the solution of chemosensor 2 resulted in a color change from colorless to obvious pink color, these significant changes in color could be used for naked-eye detection. Chemosensor 2 exhibited a stable response for Cr(3+) in the range 0-10 μM with a detection limit of 1 ppm. Furthermore, fluorescence imaging experiments of Cr(3+) ions in living MGC803 cells demonstrated its value of practical applications in biological systems.
authors.affiliation: Phosphorus Chemical Engineering Research Center of Henan Province, the College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, China.
authors.forename: Man
authors.initials: M
authors.lastname: Li
authors.forename: Di
authors.initials: D
authors.lastname: Zhang
authors.forename: Yaqi
authors.initials: Y
authors.lastname: Liu
authors.forename: Peigang
authors.initials: P
authors.lastname: Ding
authors.forename: Yong
authors.initials: Y
authors.lastname: Ye
authors.forename: Yufen
authors.initials: Y
authors.lastname: Zhao
mesh_terms: D045744:Cell Line, Tumor; D002857:Chromium / Q000032:analysis*; D003124:Colorimetry / Q000379:methods*; D005456:Fluorescent Dyes / Q000138:chemical synthesis / Q000737:chemistry*; D006801:Humans; D012996:Solutions; D013050:Spectrometry, Fluorescence / Q000379:methods*; D014867:Water / Q000737:chemistry
chemical_list: D005456:Fluorescent Dyes; D012996:Solutions; D014867:Water; D002857:Chromium
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