Nanopicture of the Day

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July 18, 2004

Templated Gold Rings

Source:  Werner A. Goedel

      References:

"Preparation of Mesoscopic Gold Rings Using Particle Imprinted Templates" Feng Yan and Werner A. Goedel Nano Lett.; 2004; 4(7) pp 1193 - 1196

Description:

Polymer membranes with closely packed two-dimensionally arranged pores have been prepared at the water surface using monolayers of silica colloids as templates. The resulting porous membranes were used as templates for the preparation of gold rings via filling of pores with a solution of gold precursor followed by calcinations. The size of the resulting rings can be easily controlled by tuning the pore size of the templating membrane.

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