title: A new disubstituted polyacetylene bearing 6-benzylaminopurine moieties: postfunctional synthetic strategy and sensitive chemosensor towards copper and cobalt ions.
abstract: A new 6-benzylaminopurine-functionalized disubstituted polyacetylene (P2) with strong green fluorescence is successfully synthesized by utilizing the postfunctional method. The polymer is soluble in common organic solvents, and its strong green fluorescence can be quenched by copper and cobalt ions with a detection limit down to 1.0 × 10(-8) (0.64 ppb) and 3.3 × 10(-8) mol L(-1) (1.94 ppb), respectively. Moreover, not much interference is observed from other metal ions, including Li(+) , Na(+) , K(+) , Fe(3+) , Fe(2+) , Ni(2+) , Hg(2+) , Mg(2+) , Al(3+) , Zn(2+) , Mn(2+) , Pb(2+) , Ba(2+) , Ca(2+) , Cd(2+) , Ag(+) , and Cr(3+) . Furthermore, P2 can be put into application using test strips, making P2 a practical, sensitive, and selective copper and cobalt probe.
authors: Department of Chemistry, Wuhan University, Wuhan 430072, PR China.
authors: Daxin
authors: D
authors: Ou
authors: Liang
authors: L
authors: Zhang
authors: Yanfen
authors: Y
authors: Huang
authors: Xiaoding
authors: X
authors: Lou
authors: Jingui
authors: J
authors: Qin
authors: Zhen
authors: Z
authors: Li
mesh_terms: D001593:Benzyl Compounds; D015374:Biosensing Techniques; D003035:Cobalt / Q000737:chemistry*; D003300:Copper / Q000737:chemistry*; D005453:Fluorescence; D005456:Fluorescent Dyes / Q000138:chemical synthesis* / Q000737:chemistry; D007477:Ions; D007701:Kinetin / Q000737:chemistry*; D053279:Polyynes / Q000737:chemistry*; D011687:Purines; D013050:Spectrometry, Fluorescence
chemical_list: D001593:Benzyl Compounds; D005456:Fluorescent Dyes; D007477:Ions; D011687:Purines; D053279:Polyynes; D003035:Cobalt; D003300:Copper; C480551:benzylaminopurine; D007701:Kinetin