Gold-Coated Quantum Dots | August 3, 2009 Issue - Vol. 87 Issue 31 | Chemical & Engineering News
Volume 87 Issue 31 | pp. 27-28 | Concentrates
Issue Date: August 3, 2009

Gold-Coated Quantum Dots

Glittering nanoparticles promise both fluorescence and plasmonic imaging with a single tag
Department: Science & Technology
Keywords: quantum dots, nanoparticles, fluorescence imaging

Scientists have devised a way to make gold-coated quantum dots that retain the desirable optical properties of both the gold and the nanocrystal. Such gold-coated quantum dots will allow researchers to perform both fluorescence and plasmonic imaging with a single tag. But making them is harder than it sounds because gold can snuff out the quantum dot's fluorescence. Xiaohu Gao and Yongdong Jin of the University of Washington, Seattle, overcame that barrier by . . .

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