Piezoelectric sensor determines antibiotic efficacy in 1 hour

Ward Johnson and NIST colleagues have developed a piezoelectric sensor to rapidly determine whether an antibiotic combats an infection. Quartz-crystal resonators, with varying vibrations, measure surface particle changes, to quickly sense mechanical fluctuations of bacterial cells and changes induced by an antibiotic.

 Results are provided in less than an hour.  Current antimicrobial tests require days to grow colonies of bacterial cells, which could result in the progression of infections before an effective treatment is identified, and lead to antibiotic resistant bacterial infections.

Click to view NIST video.


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