Researchers at the International Institute for Nanotechnology are developing novel nanostructures composed of noble metals--such as gold and silver--which will ultimately have applications in a variety of areas, including improving techniques for detecting low concentrations of small molecules. This image of gold bi-pyramid-shaped nanoparticles was produced using a small amount of silver to direct particle growth in solution.
The sharp corners of these structures may be useful for enhancing the signal detected from trace amounts of molecules, such as biological markers and contaminants.
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