Separating proteins from complex biological fluids such as blood is becoming increasingly important for understanding diseases and developing new treatments. The molecular sieve developed by MIT engineers is more precise than conventional methods and has the potential to be much faster.
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The key to the molecular sieve, which is made using microfabrication technology, is the uniform size of the nanopores through which proteins are separated from biological fluids. Millions of pores can be spread across a microchip the size of a thumbnail.
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Juhwan Yoo, a Caltech undergraduate, also participated in the research as a summer visiting student. Funding came from the National Science Foundation, the National Institutes of Health and the Singapore-MIT Alliance.