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A portable, easy-to-use paper-based biosensor for rapid in-field detection of fecal contamination on fresh produce farms
Posted by: Prof. Dr. M. Raupp (IP Logged)
Date: June 28, 2024 10:33AM

Scientists from Purdue University developed a biosensor that can detect
fecal contamination on fresh produce farms. Their innovation aims to promote
food safety in the agricultural industry.

Farms that have nearby wildlife or animal operations are at risk of
acquiring pathogens on their crops. When the plants are tested positive for
pathogens, they are quickly discarded to ensure food safety. However, it is
difficult to detect pathogens in trace amounts while adhering to regulatory

To address this issue, the researchers produced a paper-based loop-mediated
isothermal amplification (LAMP) that can detect Bacteroidales, a fecal
indicator, in farms. The low-cost technology is portable, easy to use,
accurate, and provides sensitive results within an hour. Their findings may
be used for further research and development of diagnostic tools for various
agricultural applications.


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