An acoustic plate mode biosensor

作者: J.C. Andle , J.F. Vetelino , M.W. Lade , D.J. McAllister

DOI: 10.1016/0925-4005(92)80180-6

关键词:

摘要: A prototype biosensor, which utilizes an acoustic plate mode (APM) in a piezoelectric crystal as the sensing element, has been designed, fabricated and tested. The APM is selectively excited received by aluminum interdigital transducers (IDTs), are on Z-cut X-propagating lithium niobate (ZX-LiNbO3) substrate using standard photolithographic techniques. biological film bound to face of ZX-LiNbO3 opposite IDTs. Appropriate r.f. electronics used with device form complete biosensor. Tests relating detection deoxyribonucleic acid (DNA) hybridization demonstrate that biosensor exhibits high level sensitivity, selectivity reproducibility.

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