The study and application of a new IDE-PQC sensor
The study and application of a new IDE-PQC sensor
复制标题
新型IDE-PQC传感器的研究与应用
DOI：
10.1016/j.snb.2006.11.017
复制
发表时间：
2007-05-21
影响因子：
8.4
通讯作者：
Liu, Zhenhua
中科院分区：
文献类型：
--
作者：
He, Fengjiao;Ren, Jiali;Liu, Zhenhua
A new interdigital electrode-piezoelectric quartz crystal (IDE-PQQ sensor was proposed here. It was constructed using an interdigital electrode (IDE) and a piezoelectric quartz crystal in series. The response was studied theoretically and experimentally. Proposed sensor was more sensitive than series piezoelectric quartz crystal sensor (SPQC) to changes in electrical parameters of solution in certain conditions. Factors affecting the response of the IDE-PQC were discussed in detail. Proposed method was used to detect Pseudomonas aeruginosa. The logarithm of the initial concentration of P. aeruginosa had a linear relationship with frequency detection time (FDT) in the range of 10-10(6) cfu ml(-1). The detection limit could be as low as 10 cfu ml(-1). Pour plate Counts (PPC) and SPQC methods were used for comparing with proposed method. Escherichia coli and Staphylococcus aureus were also detected successfully with proposed method. (C) 2006 Elsevier B.V. All rights reserved.
