Contact: Steven Schultz
Princeton University, Engineering School
Caption: Princeton researchers dramatically improved the sensitivity of immunoassays, a common medical test, using the nanomaterial shown here. The material consists of a series of glass pillars in a layer of gold. Each pillar is speckled on its sides with gold dots and capped with a gold disk. Each pillar is just 60 nanometers in diameter, 1/1,000th the width of a human hair.
Credit: Stephen Chou/Analytical Chemistry
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