Development of a diagnostic device to detect different pseudomonas aeruginosa phenotypes in medically relevant contexts

Research output: Contribution to conferencePaper

2 Citations (Scopus)
26 Downloads (Pure)

Abstract

Pseudomonas aeruginosa, widely present in the environment, is well known for its ability to cause infection in immune compromised individuals. For example, P. aeruginosa is the leading cause of morbidity and mortality in patients with cystic fibrosis (CF). Here, we describe how Electrochemical Impedance Spectroscopy (EIS) can be used to detect the presence of four different strains of P. aeruginosa. Using a low cost, screen printed carbon electrode significant changes can be seen in impedance data in the presence of P. aeruginosa after 24 hours. Furthermore, through the use of a normalization technique whereby the phase angle of the impedance (a commonly used parameter) is divided by a starting measurement, it is possible to identify differences between a non-mucoid and mucoid strain of P. aeruginosa. Sensors based upon the techniques described here could be used in a number of healthcare scenarios, where there is a need for low cost, real time detection of P. aeruginosa, such as CF.

Original languageEnglish
Pages2757-2760
Number of pages4
DOIs
Publication statusPublished - 26 Aug 2014
EventEngineering in Medicine and Biology Society (EMBC), 2014 36th Annual International Conference of the IEEE - IL, Chicago, United States
Duration: 26 Aug 201430 Aug 2014

Conference

ConferenceEngineering in Medicine and Biology Society (EMBC), 2014 36th Annual International Conference of the IEEE
CountryUnited States
CityChicago
Period26/08/1430/08/14

Keywords

  • biomedical electrodes
  • electrochemical impedance spectroscopy
  • patient diagnosis
  • diagnostic device development
  • screen printed carbon electrode

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