Efficient separation and quantitative detection of Listeria monocytogenes based on screen-printed interdigitated electrode, urease and magnetic nanoparticles

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• 作者：Dan Wang^a ; Qi Chen^a ; Huiling Huo^b ; Shanshan Bai^a ; Gaozhe Cai^a ; Weihua Lai^c ; Jianhan Lin^d ; ^{jianhan@cau.edu.cn}
• 关键词：Impedance biosensor ; Screen-printed interdigitated electrode ; Immuno-magnetic nanoparticles ; Urease ; Listeria monocytogenes
• 刊名：Food Control
• 出版年：2017
• 出版时间：March 2017
• 年：2017
• 卷：73
• 期：part_PB
• 页码：555-561
• 全文大小：1305 K
• 卷排序：73

文摘

The cheap screen printed electrode was used for impedance measurement. A new equivalent circuit was designed for simulation of the biosensor. This biosensor can detect was Listeria as low as 103 CFU/mL in 3 h. The mean recoveries of Listeria in spiked lettuce samples was 98.2%. This biosensor has a good specificity to Listeria monocytogenes.