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Content archived on 2024-04-30

Rapid identification and antibiotic / antifungal-agent susceptibility testing by fourier-transform infared - ft-ir - and raman spectroscopy

Objective

Development of Fourier-Transform Infrared (FT-IR) and Raman spectroscopic techniques for rapid identification and antibiotic/antifungal-agent susceptibility testing of clinically relevant micro-organisms, enabling full clinical microbiological analysis of patient material within 12-24 hours.

FT-IR and Raman methods will be developed that will enable the recording of spectra of micro-organism microcolonies of the order ~ 103 cells. Methods of spectral analysis will be developed by which classification of micro-organisms on the basis of these spectra will be possible. This will considerably speed up routine clinical microbiological analysis of patient material when compared to present day practice. Rapid analysis is of utmost importance in life threatening conditions such as sepsis, and for the containment of contaminations with drug resistant micro-organisms, such as multidrug resistant staphylococcus aureus. Characterisation of fastidious micro organisms will also greatly benefit from techniques that require only a small number of cells.

The research activities are grouped in 4 tasks:

1. Standardisation of techniques and development of dedicated instrumentation

2. Basic research addressing the effect of culturing condition, colony heterogeneity, and the presence of drug-resistance mechanisms on FT-IR and Raman spectra of micro-organisms

3. Methodology development: development of vibrational spectroscopic techniques for micro-organism identification and antibiotic/antifungal-agent susceptibility testing (MIDAS). This includes the establishment of databases of Raman and FT-IR spectra of clinically relevant micro-organisms, development of dedicated software for spectral analysis, development of drug-susceptibility tests, minimisation of the number of cells needed for characterisation of micro-organisms, pre-clinical tests)

4. Clinical tests of vibrational spectroscopic MIDAS-techniques. Comparison with routine methods for general clinical microbiology, in use at present (sensitivity, selectivity, speed).

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Coordinator

Erasmus Universiteit Rotterdam
EU contribution
No data
Address
50,Dr. Molewaterplein 50
3015 GE Rotterdam
Netherlands

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Total cost

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Participants (6)

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