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Nanoscale. 2013 Jun 7;5(11):4691-5. doi: 10.1039/c3nr00713h. Epub 2013 May 2.

Synthesis of aluminum oxide supported fluorescent gold nanodots for the detection of silver ions.

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1
Department of Chemistry, National Taiwan University, 1, Section 4, Roosevelt Road, Taipei, 10617, Taiwan.

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.

PMID:
23636566
DOI:
10.1039/c3nr00713h
[Indexed for MEDLINE]
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