Detection of Pesticide Residues in Vegetables and Fruits Using Piezoelectric Crystal Biosensor

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Abstract:

We propose a new device for detection of pesticide residues in vegetables and fruits using piezoelectric crystal biosensors. Piezoelectric crystal biosensors are based on the relationship between the resonance frequency of an oscillating piezoelectric crystal and the mass deposited on the crystal surface, which was well established by Sauerbrey. For the piezoelectric crystals vibrating in resonance frequency of the crystal is linearly related to the mass change on the crystal surface. In this project we used quartz crystal piezoelectric as a probe to detect pesticides in vegetables and fruits in Sakon nakhon province then compare it with the standard of toxins that are harmless to humans.

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16-19

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June 2014

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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[1] M. Zourob, K.G. Ong, K.F. Zeng, F. Mouffouk, C.A. Grimes, A wireless magnetoelastic biosensor for the direct detection of organophosphorus pesticides, Analyst 132(2007) 338-343.

DOI: 10.1039/b616035b

Google Scholar

[2] USEPA. Preliminary Cumulative Risk Assessment of the Organophosphorus Pesticides. Washington DC (2001).

Google Scholar

[3] S. Viswanathan, H. Radecka, J. Radecki, Electrochemical biosensor for pesticides based on acetylcholinesterase immobilized on polyaniline deposited on vertically assembled carbon nanotubes wrapped with ssDNA, Biosens. Bioelectron 24(2009).

DOI: 10.1016/j.bios.2009.01.044

Google Scholar

[4] J. Halamek, J. Pribyl, A. Makower, P. Skladal, F.W. Scheller, Sensitive detection of organophosphates in river water by meansof a piezoelectric biosensor. Anal. Bioanal. Chem. 382(2005) 1904-(1911).

DOI: 10.1007/s00216-005-3260-y

Google Scholar

[5] G.Z. Sauerbrey, The use of quartz oscillators for weighing thin layers and for microweighing, Phys. 155(1959) 206-222.

Google Scholar