Next Article in Journal
Polystyrene Based Silver Selective Electrodes
Previous Article in Journal
Thin films of In2O3/SiO for Humidity Sensing Applications
Article Menu

Export Article

Open AccessArticle
Sensors 2002, 2(6), 219-232; doi:10.3390/s20600219

Remote Query Resonant-Circuit Sensors for Monitoring of Bacteria Growth: Application to Food Quality Control

1
Department of Electrical Engineering & Materials Research Institute, 217 Materials Research Lab, The Pennsylvania State University, University Park, PA 16802, USA
2
Department of Electrical and Computer Engineering, Merrimack College, North Andover, MA. 01845, USA
3
Department of Chemistry, The University of Kentucky, Lexington, KY 40506, USA
*
Author to whom correspondence should be addressed.
Received: 15 June 2002 / Accepted: 17 June 2002 / Published: 22 June 2002
View Full-Text   |   Download PDF [364 KB, uploaded 20 June 2014]   |  

Abstract

This paper presents a technique for in-situ remote query monitoring of bacteria growth utilizing a printed thin or thick-film sensor comprised of an inductor-capacitor (LC) resonant circuit. The sensor, which is placed within the biological medium of interest and remotely detected using a loop antenna, measures the complex permittivity of the medium. Since bacteria growth increases the complex permittivity of a biological medium the LC sensor can be used to determine bacteria concentration. This paper presents results on monitoring of three different bacteria strains, Bacillus subtilis, Escherichia coli JM109, and Pseudomonas putida, demonstrating application of the sensor for monitoring bacteria growth in milk, meat, and beer. Due to its low unit cost and remote query detection, the sensor is potentially useful for commercial scale monitoring of food quality. View Full-Text
Keywords: Sensor; Resonant circuit; Wireless; Remote query; Passive; Complex permittivity; Bacteria; Food quality Sensor; Resonant circuit; Wireless; Remote query; Passive; Complex permittivity; Bacteria; Food quality
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Ong, K.G.; Bitler, J.S.; Grimes, C.A.; Puckett, L.G.; Bachas, L.G. Remote Query Resonant-Circuit Sensors for Monitoring of Bacteria Growth: Application to Food Quality Control. Sensors 2002, 2, 219-232.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top