28–31 Aug 2018
EPFL
Europe/Zurich timezone

【932】 Fast drug susceptibility testing with nanomechanical sensors

29 Aug 2018, 18:30
1h 30m
Salle polyvalente (EPFL)

Salle polyvalente

EPFL

Poster Biophysics, Medical Physics and Soft Matter Poster Session

Speaker

Petar Stupar (EPFL)

Description

An infection with a pathogen is especially dangerous in cases of developed resistance to currently available drugs. Depending on the infecting agent, the onset of disease may progress quickly. Culture-based conventional susceptibility assays take days and weeks to complete, in order to chose the right drug and dose. Our work considers the nanomechanical sensor that responds to miniscule fluctuations exerted by living cells. The sensor is able to discriminate metabolically active bacteria from antibiotic-inactivated or dead ones. The technique is based on optical lever detection and a simple inexpensive prototype device has been developed. The proposed technique has been tested on numerous bacterial strains. Working principle of the technique and test cases with bacterial samples will be presented.

Authors

Petar Stupar (EPFL) Wojciech Chomicki (EPFL) Leonardo Venturelli (EPFL) Raphaël Foschia (EPFL) Giovanni Dietler (EPFL) Sandor Kasas (EPFL)

Presentation materials

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