Issue 15, 2019, Issue in Progress

Quantification of Staphylococcus aureus using surface acoustic wave sensors

Abstract

Quartz crystal microbalance (QCM), surface acoustic wave (SAW)-Rayleigh and ZnO based SAW-Love sensors were fabricated and their sensitivity was comparatively analyzed for the quantification of Staphylococcus aureus (S. aureus). The SAW based sensors showed response magnitudes up to three times greater than that of the QCM sensor for the same mass loading of S. aureus. The ZnO nanoparticle-based SAW-Love sensor has a maximum mass loading sensitivity of 328.75 Hz ng−1. The SAW-Love sensor achieved a lower limit of detection of 2 × 103 CFU mL−1 compared to the QCM counterpart (2 × 105 to 2 × 106 CFU mL−1) under the same conditions. The SAW-Love sensor could be used as a disposable chip in micro or ultra-trace accurate diagnosis methods.

Graphical abstract: Quantification of Staphylococcus aureus using surface acoustic wave sensors

Article information

Article type
Paper
Submitted
28 Nov 2018
Accepted
03 Mar 2019
First published
14 Mar 2019
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2019,9, 8411-8414

Quantification of Staphylococcus aureus using surface acoustic wave sensors

Z. Xu and Y. J. Yuan, RSC Adv., 2019, 9, 8411 DOI: 10.1039/C8RA09790A

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