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Nano Research

, Volume 3, Issue 10, pp 738–747

First Online: 21 September 2010Received: 14 July 2010Revised: 24 August 2010Accepted: 31 August 2010DOI: 10.1007-s12274-010-0040-6

Cite this article as: Radha, B., Arif, M., Datta, R. et al. Nano Res. 2010 3: 738. doi:10.1007-s12274-010-0040-6


Hexagonal and triangular Au microplates extending over an area of ?12,000 ?m with thickness in the range 30–1000 nm have been synthesized using a single step thermolysis of AuCl4-tetraoctylammonium bromide complex in air. The microplates are self-supporting and can be easily manipulated using a sharp pin, a property which enables them to serve as substrates for living cells. The microplate surface is non-toxic to living cells and can enhance the fluorescence signal from fluorophores residing within the cell by an order of magnitude. In addition, the microplates are smooth and single-crystalline, and ideal as microscopy substrates and molecular electrodes. The growth of the microplates in the initial stages is interesting in that they seem to grow perpendicular to the substrate, as evidenced by in situ microscopy.Open image in new window

KeywordsAu microplates synthesis cell substrate metal enhanced fluorescence manipulation This article is published with open access at

Electronic Supplementary MaterialSupplementary material is available for this article at 10.1007-s12274-010-0040-6 and is accessible for authorized users.

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Autor: Boya Radha - Mohammed Arif - Ranjan Datta - Tapas K. Kundu - Giridhar U. Kulkarni


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