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Analytical chemistry

The matrix neutralized

Nature volume 461, pages 890891 (15 October 2009) | Download Citation


Many of the best methods available for monitoring biological binding events can't be used in a diverse range of clinical samples. An ultrasensitive assay based on magnetic signals overcomes this problem.

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Author information


  1. Ilia Fishbein and Robert J. Levy are in the Division of Cardiology, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania 19104-4318, USA.

    • Ilia Fishbein
    •  & Robert J. Levy


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