Self-assembly of metallic nanoparticles into macroscopic, high-density, monolayer films
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United States of America Patent
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Apr 26, 2016
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Aug 22, 2013
app pub date -
Feb 20, 2013
filing date -
Feb 21, 2012
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Abstract
A method of forming a monolayer film of nanoparticles includes forming a fluid mixture by combining nanoparticles dispersed in water with a water-miscible organic solvent and a molecular ligand comprising a head group with affinity for the nanoparticle, and introducing the fluid mixture to a substrate in the presence of an air/fluid interface, thereby causing a monolayer film of nanoparticles to form on the substrate. Such monolayers films can include metallic nanoparticles such as gold, and possess substantially uniform spacing over at least a one centimeter length scale.
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