New Miniaturized Device for Lab-on-a-Chip Separations

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Core of the new NIST miniature GEMBE chemical separation device (above left) is a machined acrylic block shown with a quarter for scale. Eight sample resevoirs for multiplexed separations form a ring around the central buffer solution port. (Smaller ...
Core of the new NIST miniature GEMBE chemical separation device (above left) is a machined acrylic block, shown with a quarter for scale. Eight sample resevoirs for multiplexed separations form a ring around the central buffer solution port. (Smaller holes are for assembly screws.) At right: prototype in use. Credit: NIST

Researchers at the National Institute of Standards and Technology have developed an elegantly simple, miniaturized technique for rapidly separating minute samples of proteins, amino acids and other chemical mixtures. A low-cost prototype device described in a recent paper can run up to eight separations simultaneously in a space about the size of a quarter, highlighting the technique's potential for use in microfluidic "lab-on-a-chip" systems.


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All News summaries for January 19, 2007

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