An Experimental Study on capacitive touch sensor's response to E. coli bacteria

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

Escherichia coli or E. coli is the dominant pathogen in Urinary Tract Infections (UTIs) in more than 80 % of the cases. Laboratory urine culture is the standard detection method which is expensive and time consuming. This paper studies the possibility of using a capacitive sensor to diagnose UTIs. Experimental tests were carried out to investigate the touch sensor's response to artificially prepared E.coli sample. The capacitive touch sensor gave a consistent result that could be used to design a portable diagnostic device for early detection of UTIs. An exponential response was observed to increasing volume (up to 100 microliter) and E.coli presence in the sample. When the volume reached 100 microliter, the capacitance in average RAW Count Difference value became constant. Urine sample mixed with liquid E. coli gave the highest capacitance change (in average RAW Count Difference value) and the sensitivity at 100 microliter was found to be 22 counts per picofarad (pF).

Original languageEnglish
Title of host publicationProceedings of the 16th International Conference on Mechatronics, Mechatronika 2014
EditorsTomas Brezina, Alexandr Stefek, Dusan Maga
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages433-436
Number of pages4
ISBN (Electronic)9788021448162
DOIs
StatePublished - 22 Jan 2014
Externally publishedYes
Event16th International Conference on Mechatronics, Mechatronika 2014 - Brno, Czech Republic
Duration: 3 Dec 20145 Dec 2014

Publication series

NameProceedings of the 16th International Conference on Mechatronics, Mechatronika 2014

Conference

Conference16th International Conference on Mechatronics, Mechatronika 2014
Country/TerritoryCzech Republic
CityBrno
Period3/12/145/12/14

Keywords

  • Escherichia coli
  • capacitive touch sensor
  • mutual capacitance
  • self-capacitance
  • urinary tract infections

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