Designing a low cost sensor for sensing pathogens and contaminants in food, water and soil. I would develop a permittivity based sensor for real time sensing of pathogens and contaminants. It immobilizes any patogen or contaminant and then the capacitance of a reference sensor and that of target sensor are compared. If the capacitances differ, the patogen or contaminat is present. Each individual sensor or a group of them can be functionalized for a given specific target: E. coli, Streptococcus, Staphylococcus, Salmonella, Hg, Pb, As. With the use of mathematical algorithms, the rate of positive events provides data about the concentration of the target pathogen or contaminant.
The sensor will use low costs ICs and insumes for sample preparation and It will be connected through USB or Analog Port.
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