title: An Amidochlorin-Based Colorimetric Fluorescent Probe for Selective Cu(2+) Detection.
abstract: The design and synthesis of selective and sensitive chemosensors for the quantification of environmentally and biologically important ionic species has attracted widespread attention. Amidochlorin p6 (ACP); an effective colorimetric and fluorescent probe for copper ions (Cu(2+)) in aqueous solution derived from methyl pheophorbide-a (MPa) was designed and synthesized. A remarkable color change from pale yellow to blue was easily observed by the naked eye upon addition of Cu(2+); and a fluorescence quenching was also determined. The research of fluorescent quenching of ACP-Cu(2+) complexation showed the detection limit was 7.5 × 10(-8) mol/L; which suggested that ACP can act as a high sensitive probe for Cu(2+) and can be used to quantitatively detect low levels of Cu(2+) in aqueous solution. In aqueous solution the probe exhibits excellent selectivity and sensitivity toward Cu(2+) ions over other metal ions (M = Zn(2+); Ni(2+); Ba(2+); Ag⁺; Co(2+); Na⁺; K⁺; Mg(2+); Cd(2+); Pb(2+); Mn(2+); Fe(3+); and Ca(2+)). The obvious change from pale yellow to blue upon the addition of Cu(2+) could make it a suitable "naked eye" indicator for Cu(2+).
authors.affiliation: Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, College of Chemistry &amp; Chemical Engineering, Harbin Normal University, Harbin 150025, China. m13039864430@163.com.
authors.forename: Wenting
authors.initials: W
authors.lastname: Li
authors.affiliation: Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, College of Chemistry &amp; Chemical Engineering, Harbin Normal University, Harbin 150025, China. zhuguohua201@163.com.
authors.forename: Guohua
authors.initials: G
authors.lastname: Zhu
authors.affiliation: Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, College of Chemistry &amp; Chemical Engineering, Harbin Normal University, Harbin 150025, China. jyxprof@163.com.
authors.forename: Jinghua
authors.initials: J
authors.lastname: Li
authors.affiliation: Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, College of Chemistry &amp; Chemical Engineering, Harbin Normal University, Harbin 150025, China. wzq70402@163.com.
authors.forename: Zhiqiang
authors.initials: Z
authors.lastname: Wang
authors.affiliation: Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, College of Chemistry &amp; Chemical Engineering, Harbin Normal University, Harbin 150025, China. tgh.123@163.com.
authors.forename: Yingxue
authors.initials: Y
authors.lastname: Jin
mesh_terms: D003124:Colorimetry / Q000379:methods*; D003300:Copper / Q000032:analysis*; D005456:Fluorescent Dyes / Q000737:chemistry; D006863:Hydrogen-Ion Concentration; D007477:Ions / Q000032:analysis*; D008958:Models, Molecular; D015394:Molecular Structure; D012680:Sensitivity and Specificity
chemical_list: D005456:Fluorescent Dyes; D007477:Ions; D003300:Copper
keywords: chlorophyll; copper ions; fluorescent probe