Noninvasive Assessment of Soil Microbial Activity

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Researchers at Purdue University have developed a new method to quantify activity and amounts of soil bacteria. This technique is more accurate and sensitive than traditional bacterial population sensing methods; only 0.1-1% of soil bacteria can be cultured in the laboratory. The Purdue researchers' method uses electrical impedance monitoring to assess the bacteria's rate of degradation of cellulose acetate, a biodegradable polymer. A decrease in the impedance measurement indicates degradation of cellulose acetate and an increase in the amount of bacteria. This non-invasive, real-time, in situ approach easily interfaces with wireless data acquisition modules to provide soil health information that the agricultural industry can use to forecast crop production and soil maintenance needs

Technology Validation: The researchers tested the method with Pseudomonas aeruginosa bacteria, a bacterial species commonly found in soil.

Advantages :
-In situ

Applications :
-Soil monitoring
Jul 6, 2022
Utility Patent
United States

Jul 6, 2021
United States
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