標題: Series quartz crystal sensor for remote bacteria population monitoring in raw milk via the Internet
作者: Chang, KS
Jang, HD
Lee, CF
Lee, YG
Yuan, CJ
Lee, SH
生物科技學系
Department of Biological Science and Technology
關鍵字: series piezoelectric quartz crystal;biosensor;Escherichia coli;Internet
公開日期: 15-Feb-2006
摘要: A remote monitoring system based on a piezoelectric quartz crystal (SPQC) sensor was developed for the determination of the bacteria population in raw milk. The system employs the Windows XP server operating system, and its programs for data acquisition, display and transmission were developed using the LabVIEW 7.1 programming language. The circuit design consists of a circuit with a piezoelectric quartz crystal (SPQC) and a pair of electrodes. This system can provide dynamic data monitoring on a web-page via the Internet. Immersion of the electrodes in a cell culture with bacteria inoculums resulted in a change of frequency caused by the impedance change due to microbial metabolism and the adherence of bacteria on the surface of the electrodes. The calibration curve of detection times against density of bacteria showed a linear correlation coefficient (R-2 = 0.9165) over the range of 70-10(6) CFU ml(-1). The sensor could acquire sufficient data rapidly (within 4 h) and thus enabled real-time monitoring of bacteria growth via the Internet. This system has potential application in the detection of bacteria concentration of milk at dairy farms. (c) 2005 Elsevier B.V. All rights reserved.
URI: http://dx.doi.org/10.1016/j.bios.2005.07.015
http://hdl.handle.net/11536/12626
ISSN: 0956-5663
DOI: 10.1016/j.bios.2005.07.015
期刊: BIOSENSORS & BIOELECTRONICS
Volume: 21
Issue: 8
起始頁: 1581
結束頁: 1590
Appears in Collections:Articles


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