Rapid microbiological testing: monitoring the development of bacterial stress.

ABSTRACT: The ability to respond to adverse environments effectively along with the ability to reproduce are sine qua non conditions for all sustainable cellular forms of life. Given the availability of an appropriate sensing modality, the ubiquity and immediacy of the stress response could form the basis for a new approach for rapid biological testing. We have found that measuring the dielectric permittivity of a cellular suspension, an easily measurable electronic property, is an effective way to monitor the response of bacterial cells to adverse conditions continuously. The dielectric permittivity of susceptible and resistant strains of Escherichia coli and Staphylococcus aureus, treated with gentamicin and vancomycin, were measured directly using differential impedance sensing methods and expres

SUBMITTER: Zavizion B 

PROVIDER: S-EPMC2954791 | biostudies-literature | 2010 Oct

REPOSITORIES: biostudies-literature