title: A zinc fluorescent sensor used to detect mercury (II) and hydrosulfide.
abstract: A zinc sensor based on quinoline and morpholine has been synthesized. The sensor selectively fluoresces in the presence of Zn2+, while not for other metal ions. Absorbance changes in the 350nm region are observed when Zn2+binds, which binds in a 1:1 ratio. The sensor fluoresces due to Zn2+above pH values of 6.0 and in the biological important region. The Zn2+-sensor complex has the unique ability to detect both Hg2+and HS-. The fluorescence of the Zn2+-sensor complex is quenched when it is exposed to aqueous solutions of Hg2+with sub-micromolar detection levels for Hg2+. The fluorescence of the Zn2+-sensor complex is also quenched by aqueous solutions of hydrosulfide. The sensor was used to detect Zn2+and Hg2+in living cells.
authors.affiliation: Department of Fine Chemistry, Seoul National University of Science and Technology, Seoul 139-743, Republic of Korea; Department of Interdisciplinary Bio IT Materials, Seoul National University of Science and Technology, Seoul 139-743, Republic of Korea.
authors.forename: Jae Min
authors.initials: JM
authors.lastname: Jung
authors.affiliation: Department of Fine Chemistry, Seoul National University of Science and Technology, Seoul 139-743, Republic of Korea; Department of Interdisciplinary Bio IT Materials, Seoul National University of Science and Technology, Seoul 139-743, Republic of Korea.
authors.forename: Jae Jun
authors.initials: JJ
authors.lastname: Lee
authors.affiliation: Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea.
authors.forename: Eunju
authors.initials: E
authors.lastname: Nam
authors.affiliation: Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea.
authors.forename: Mi Hee
authors.initials: MH
authors.lastname: Lim
authors.affiliation: Department of Fine Chemistry, Seoul National University of Science and Technology, Seoul 139-743, Republic of Korea; Department of Interdisciplinary Bio IT Materials, Seoul National University of Science and Technology, Seoul 139-743, Republic of Korea. Electronic address: chealkim@seoultech.ac.kr.
authors.forename: Cheal
authors.initials: C
authors.lastname: Kim
authors.affiliation: Department of Chemistry and Biochemistry, Brigham Young University, Provo, UT, 84062, USA. Electronic address: roger_harrison@byu.edu.
authors.forename: Roger G
authors.initials: RG
authors.lastname: Harrison
keywords: Chemosensor; Hydrosulfide; Mercury; Morpholine; Quinoline