Xtrana, of Denver, has received US Patent Number 6,291,166, “Nucleic acid archiving.” The patent covers an invention for binding a nucleic acid to a solid substrate that is hydrophobic and electropositive. The binding process would allow the capture of nucleic acids from specimens that involve low concentrations of the nucleic acid in a high volume of sample, and enable for washes, buffer changes, and volume reductions; as well as the addition of an enzyme.

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