Electronic device for detection of viruses, bacteria, and pathogens

This invention relates to identification of organic or nonorganic molecules dissolved in liquid solutions based in their inner dipole moment. These compounds include and aren’t restricted to viruses, germs, microbes, and in general pathogens. The liquid solution gives a specific dielectric constant, which can be directly related to the inner dipole moment of the dissolved pathogen. An electronic device namely PtSi-Porous Si schottky intersection is suggested as the pathogen sensor. This device, which is constructed of PtSi metal covering the pores of an n-type Silicon substrate, is a sensitive indicator of the dielectric constant of the material filling its pores. Specifically, such a device has a unique reverse biased current-voltage (IV) relation that’s sensitive to changes in electric fields around its surface, which change its breakdown voltage. The change caused in the breakdown voltage because of a pathogen dissolved in a liquid solution can be traced back into the dipole moment of the pathogen and used to identify it. Additional application of a frequency changing ac signal to the device can help differentiate molecules with equal dipole moments. Every pathogen displays a frequency at which a sudden change in its characteristics occurs. This shift in the characteristics causes an abrupt shift in the breakdown voltage. The frequency at which the breakdown voltage changes is subsequently used to identify the pathogen.


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Identification and classification of pathogens is a topic of considerable research and business interest. A major part of a discipline called microfluidics is dedicated to these purposes. Microfluidics takes benefit of overall andspecific fluid dynamics in micrometer and nanometer-sized stations and avenues to segregate and possibly identify specific pathogens. Though in its infancy, microfluidics has had a massive effect in diagnostics of disease, DNA analysis and the like.

In microfluidics, a system of micrometer or nanometer-sized stations are made and employed for identifying pathogens. These networks provide classes of different diameters with a number of outlet and inlet ports which can segregate particularpathogens. After dividing the pathogens, a combination of optical, mechanical and chemical diagnostics may be used to identify the substance under test.

In earlier times micrometer or nanometer-sized stations are made on Si, glass and polymers surfaces. Although the use of these surfaces has assisted in identifying specific pathogens, a need exists for a solution for providing fast, easy,cost effective and accurate identification of pathogens.

IP reviewed by Plant-Grow agriculture technology news