title: Gold nanoparticles with cyclic phenylazomethines: one-pot synthesis and metal ion sensing.
abstract: New gold nanoparticles covered with cyclic phenylazomethine (CPA) were obtained by a one-pot synthesis. It is confirmed by XPS that imines of CPA in the nanoparticles (Au-CPA) are partially reduced to amines. The amine part of CPA in Au-CPA is attached to the surfaces of gold nanoparticles, and the imine part works as a redox-active site. A glassy carbon electrode modified with Au-CPA was revealed to work as an electrochemical probe for metal ion sensing.
authors.affiliation: Graduate School Pure and Applied Science, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8577, Japan.
authors.forename: Ryo
authors.initials: R
authors.lastname: Shomura
authors.forename: Keum Jee
authors.initials: KJ
authors.lastname: Chung
authors.forename: Hideo
authors.initials: H
authors.lastname: Iwai
authors.forename: Masayoshi
authors.initials: M
authors.lastname: Higuchi
mesh_terms: D001391:Azo Compounds / Q000737:chemistry*; D004563:Electrochemistry; D004566:Electrodes; D006046:Gold / Q000737:chemistry*; D053768:Metal Nanoparticles / Q000737:chemistry*; D019216:Metals, Heavy / Q000032:analysis*; D015394:Molecular Structure; D050607:Organogold Compounds / Q000138:chemical synthesis* / Q000737:chemistry; D010316:Particle Size; D011084:Polycyclic Aromatic Hydrocarbons / Q000737:chemistry*; D011166:Porphyrins / Q000737:chemistry*; D013499:Surface Properties
chemical_list: D001391:Azo Compounds; D019216:Metals, Heavy; D050607:Organogold Compounds; D011084:Polycyclic Aromatic Hydrocarbons; D011166:Porphyrins; C506824:phenylazomethine; D006046:Gold