title: Synthesis of aluminum oxide supported fluorescent gold nanodots for the detection of silver ions.
abstract: Photoluminescent gold nanodots (Au NDs) on aluminum oxide nanoparticles (Al2O3 NPs) with the emission wavelengths ranging from 510 to 630 nm are unveiled. Orange Al2O3 NP@AuNDs show high selectivity and sensitivity towards Ag(+) ions by metallophilic Ag(+)-Au(+) interactions and induced fluorescence quenching of Au NDs.
authors: Department of Chemistry, National Taiwan University, 1, Section 4, Roosevelt Road, Taipei, 10617, Taiwan.
authors: Po-Cheng
authors: PC
authors: Chen
authors: Ting-Yin
authors: TY
authors: Yeh
authors: Chung-Mao
authors: CM
authors: Ou
authors: Chung-Chien
authors: CC
authors: Shih
authors: Huan-Tsung
authors: HT
authors: Chang
mesh_terms: D000537:Aluminum Oxide / Q000737:chemistry*; D002384:Catalysis; D006046:Gold / Q000737:chemistry*; D007477:Ions / Q000737:chemistry; D053768:Metal Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D012834:Silver / Q000032:analysis*; D013053:Spectrophotometry; D013696:Temperature
chemical_list: D007477:Ions; D012834:Silver; D006046:Gold; D000537:Aluminum Oxide