Synthesis and characterization of fluorescent gold nanoclusters | Zendy

Lien Nghiem Thi Ha | Zendy; Hoang Nguyen Dinh | Zendy; Nghia Nguyen Trong | Zendy; Hoa Do Quang | Zendy

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Synthesis and characterization of fluorescent gold nanoclusters

Author(s) -

Lien Nghiem Thi Ha,

Hoang Nguyen Dinh,

Nghia Nguyen Trong,

Hoa Do Quang

Publication year - 2018

Publication title -

vietnam journal of chemistry

Language(s) - English

Resource type - Journals

eISSN - 2572-8288

pISSN - 0866-7144

DOI - 10.1002/vjch.201800030

Subject(s) - nanoclusters , fluorescence , quantum yield , absorption (acoustics) , photochemistry , aqueous solution , materials science , absorption spectroscopy , characterization (materials science) , nanotechnology , chemistry , optics , physics , composite material

The fluorescent gold nanoclusters (AuNCs) have been synthesized using aqueous reduction of chloroaric acid with mecapto undecanoic acid (MuA) as a thiol protecting agent. These AuNCs exhibited a strong absorption at 370 nm and a fluorescent emission in visible region. The emission spectrum can be tuned from 520 to 560 nm by controlling the NaOH concentrations during the reaction process. The gold nanoclusters exhibit a quantum yield of few percents and a fluorescence lifetime of ~2 ns. These properties of AuNCs provide greatly promising for biological applications.

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