title: A pentacenequinone derivative with aggregation-induced emission enhancement characteristics for the picogram detection of Fe(3+) ions in mixed aqueous media.
abstract: The binding behavior of nanoaggregates of pentacenequinone derivative 1 having thiophene groups has been investigated toward various cations (Fe(3+), Fe(2+), Pd(2+), Mg(2+), Cd(2+), Hg(2+), Ni(2+), Zn(2+), Cu(2+), Pb(2+), Co(2+), K(+), Na(+) and Li(+)) using UV-vis and fluorescence spectroscopy. Among the various cations tested, nanoaggregates of compound 1 show a selective and sensitive response towards ferric ions. Further, the paper strips coated with a solution of nanoaggregates of 1 can detect ferric ions at the picogram level, thus providing a simple, portable and low cost method for the detection of ferric ions at the picogram level in aqueous solution.
authors: Department of Chemistry, UGC-Centre for Advanced Studies-1, Guru Nanak Dev University, Amritsar, Punjab, India. vanmanan@yahoo.co.in
authors: Vandana
authors: V
authors: Bhalla
authors: Ankush
authors: A
authors: Gupta
authors: Manoj
authors: M
authors: Kumar
mesh_terms: D016227:Benzoquinones / Q000737:chemistry*; D005290:Ferric Compounds / Q000032:analysis*; D007477:Ions / Q000737:chemistry; D008670:Metals / Q000737:chemistry; D049329:Nanostructures / Q000737:chemistry; D009279:Naphthacenes / Q000737:chemistry*; D013056:Spectrophotometry, Ultraviolet; D014867:Water / Q000737:chemistry*
chemical_list: D016227:Benzoquinones; D005290:Ferric Compounds; D007477:Ions; D008670:Metals; D009279:Naphthacenes; D014867:Water; C004532:quinone; C523499:pentacene