15 May 2018 The combination of magnetoelastic (ME) wireless biosensing with surface swab sampling
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Abstract
To perform rapid sensing of pathogens on the surface of food or food preparing plates, ME wireless biosensing system was combined with surface swab sampling techniques in this research. The ME biosensors which consist of ME resonators E2 phage was generally used for Salmonella typhimurium direct detections on the surfaces. E2 phage used in this research was designed for Salmonella typhimurium specific binding. Instead of measuring one spot at a time, the desired area or the whole area of a target surface can be swabbed for the inexpensive, rapid and easy-to-use pathogen collections. In this study, we first investigated the efficiency of capture and release of a model pathogen, Salmonella Typhimurium, by swab sampling on wet or dry surfaces. Plate counting was used to identify the recovery rates. The efficiency of capture and release was calculated and compared between various kinds of swabs which were composed of different tip materials, including cotton, rayon, and nylon-flocked ones.
Conference Presentation
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Yuzhe Liu, Yuzhe Liu, Songtao Du, Songtao Du, Shin Horikawa, Shin Horikawa, I-Hsuan Chen, I-Hsuan Chen, Jianguo Xi, Jianguo Xi, Xu Lu, Xu Lu, Tung-Shi Huang, Tung-Shi Huang, Bryan A. Chin, Bryan A. Chin, } "The combination of magnetoelastic (ME) wireless biosensing with surface swab sampling", Proc. SPIE 10665, Sensing for Agriculture and Food Quality and Safety X, 106650E (15 May 2018); doi: 10.1117/12.2305242; https://doi.org/10.1117/12.2305242
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