Volume : V, Issue : V, May - 2015

PLANT MEMBRANE DIELECTRIC AS A CAPACITIVE BIOSENSOR

Arjun Ram Jb, K. L. Sharma, Arun Jb

Abstract :

 The plant leaf is working as a capacitive biosensor, because the water content creates pressure inside  leaf, which changes the dielectric of leaf memane. The dielectric capacitance is a result of molecular  polarization, which carries random ion charge. The random dipoles of dielectric can be avoided by applying external  small electrical potential for linear polarization. If there is a net charge in dielectric region near a memane, an electrical difference exist from one region to another. The magnitude of such an electrical potential difference ?E is related  to the capacitive region but not affect the values of capacitance and dielectric. The measurement of dielectric values  of Rajgira Sona (Amgranthus) plant using ECG electrodes, which varied as per the water contain in plant memane.  The value of memane dielectric to be measured in the form of variable capacitance, due to change of water pressure  inside the plant leaf. The capacitance of leaf observed 16 nF to 64.4 nF, which variable as the water content in leaf  memane. Due to above characteristic the plant leaf can be used as biosensor and useful for irrigation control system

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Article: Download PDF   DOI : 10.36106/ijar  

Cite This Article:

Arjun Ram JB, K. L. Sharma, Arun JB PLANT MEMBRANE DIELECTRIC AS A CAPACITIVE BIOSENSOR Indian Journal of Applied Research, Vol.5, Issue : 5 May 2015

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