A sample extraction method with improved sensitivity for capture of trace amounts of target by utilizing a target-specific enzyme, and covalently bonding the target for capture and immobilization on an activated surface.
STATEMENT OF GOVERNMENTAL SUPPORT
 This invention was made with governmental support under the Department of Homeland Security Science and Technology directorate, Chemical and Biology division, Bioforensics Office (LB09005872). This work was supported by the Director, Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. A part of this work performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344. The government has certain rights in the invention.