Biomatrica — started in 2005 by husband-and-wife scientists who invented a preservative for keeping DNA and other biological samples at room temperature — was acquired last month by Exact Sciences Corp.

Plans call for Biomatrica to stay in San Diego and operate as a subsidiary of Wisconsin-based Exact Sciences. Deal terms were not disclosed.

Biomatrica specializes in putting information-rich tissue into suspended animation so that companies aren’t so dependent on energy-draining refrigeration. This technology mimics brine shrimp and other organisms able to survive without water for stretches.

Besides helping companies store samples, the company’s software and tools aid in organization.

“Biomatrica will continue to deploy its capabilities in Exact Sciences’ early cancer screening pipeline as well as with its expanding client base in diagnostics and consumer genomics,” Biomatrica said in a statement.