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Study reports faster, more economical method for detecting bioterror threats

Texas Biomedical Research Institute scientists in San Antonio have developed a faster, less expensive route to screen suitable tests for bioterror threats and accelerate the application of countermeasures.

The new process screens for pairs of affinity reagents – molecular magnets that bind to and hold on to their targets, be they toxins, viruses or bacteria. That will enable countermeasures to be selected and utilized much faster than the current practice.

"Using crude extracts from E. coli, the workhorse bacterium of the biotechnology laboratory, the new route bypasses the need for purification and complex equipment, enabling screening to be performed in under an hour," said Andrew Hayhurst, Ph.D., a Texas Biomed virologist.

Normally, he said, such screening requires sophisticated costly equipment to purify and analyze the affinity reagents. Such analysis becomes a huge burden when hundreds of reagents need to be checked and can take weeks to months. The process – funded primarily by Texas Biomed and the San Antonio Area Foundation, and in part by the Defense Threat Reduction Agency and the National Institutes of Health (NIH) – was described online in the November 5, 2012 issue of Nature Publishing Group's Scientific Reports.
 
 

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