Film bulk acoustic biosensor for detection of trace pesticide residues in agricultural products. Issue 15 (1st July 2013)

• Record Type: Journal Article
• Authors: Chen, D.; Wang, J.J.; Xu, Y.; Liu, W.H.; Wang, P.
• Is Part Of: Electronics letters. Volume 49:Issue 15(2013)
• Page Start: 924
• Page End: 925
• Publication Date: 2013-07-01
• Subjects: agricultural products -- agrochemicals -- biosensors -- bulk acoustic wave devices -- food safety -- surface acoustic wave resonators; food safety -- sensing performances -- antigen‐antibody reactions -- resonant frequency monitoring -- resonant frequency reduction -- immobilised antibodies -- pesticide molecules -- film bulk acoustic resonator sensing surface -- agricultural products -- trace pesticide residue detection -- film bulk acoustic biosensor; Electronics -- Periodicals; 621.381
• DOI: 10.1049/el.2013.1803
• Languages: English
• ISSNs: 0013-5194

Abstract

Abstract : A highly sensitive, rapid and convenient biosensor based on film bulk acoustic resonator has been developed for detection of pesticide residues in agricultural products. When the pesticide molecules are bound to the immobilised antibodies on the resonator sensing surface, the resonant frequency is obviously reduced because of additional mass. Trace pesticide in the solutions was detected through real‐time monitoring of the resonant frequency during antigen–antibody reactions on the resonator surface. Using the proposed biosensor, realised is a convenient and rapid detection process (less than 1 min) and a remarkable low detection limit (ppb level) for the pesticide. On the basis of the sensing performances, the film bulk acoustic resonator shows promising applications for food safety guarantees.