Contact: Angela Stark
Optical Society of America
Caption: This image illustrates the enormous increase in surface area possessed by porous silicon sensors. If we assume a traditional sensor can capture molecules on an area equivalent to that of a golf ball, then a similarly sized porous silicon sensor has enough surface area to capture molecules on an area equivalent to that of a football field. The ability to capture more molecules increases the probability and sensitivity of detecting small molecules such as DNA or toxins.
Credit: Vanderbilt University
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