Remote query resonant-circuit sensors for monitoring of bacteria growth: Application to food quality control

Keat Ghee Ong, J. Samuel Bitler, Craig A. Grimes, Libby G. Puckett, Leonidas G Bachas

Research output: Contribution to journalArticle

52 Citations (Scopus)

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.

Original languageEnglish (US)
Pages (from-to)219-232
Number of pages14
JournalSensors
Volume2
Issue number6
StatePublished - 2002
Externally publishedYes

Fingerprint

Resonant circuits
Food Quality
quality control
food
Quality Control
bacteria
Quality control
Bacteria
Monitoring
sensors
Sensors
Growth
Permittivity
permittivity
loop antennas
Loop antennas
Beer
Pseudomonas putida
pseudomonas
milk

Keywords

  • Bacteria
  • Complex permittivity
  • Food quality
  • Passive
  • Remote query
  • Resonant circuit
  • Sensor
  • Wireless

ASJC Scopus subject areas

  • Analytical Chemistry
  • Biochemistry

Cite this

Ong, K. G., Samuel Bitler, J., Grimes, C. A., Puckett, L. G., & Bachas, L. G. (2002). Remote query resonant-circuit sensors for monitoring of bacteria growth: Application to food quality control. Sensors, 2(6), 219-232.

Remote query resonant-circuit sensors for monitoring of bacteria growth : Application to food quality control. / Ong, Keat Ghee; Samuel Bitler, J.; Grimes, Craig A.; Puckett, Libby G.; Bachas, Leonidas G.

In: Sensors, Vol. 2, No. 6, 2002, p. 219-232.

Research output: Contribution to journalArticle

Ong, KG, Samuel Bitler, J, Grimes, CA, Puckett, LG & Bachas, LG 2002, 'Remote query resonant-circuit sensors for monitoring of bacteria growth: Application to food quality control', Sensors, vol. 2, no. 6, pp. 219-232.
Ong, Keat Ghee ; Samuel Bitler, J. ; Grimes, Craig A. ; Puckett, Libby G. ; Bachas, Leonidas G. / Remote query resonant-circuit sensors for monitoring of bacteria growth : Application to food quality control. In: Sensors. 2002 ; Vol. 2, No. 6. pp. 219-232.
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