Biological Sensors
Detecting Bacteria in Powders (331)
Problem: Need practical measurement method for rapid, non-invasive detection and identification of bacteria
Project Activity Scope (from Technical Overview Chart): Mechanisms through Sensors and Devices
PNNL Solution:
- Use photoacoustic spectroscopy (PAS) for direct analysis of dry samples
- Detect bacteria using infrared absorption features identified in spectral library for bacteria
- Adapt laser source(s) and PAS cell design to allow practical field-portable bacterial analysis
Capabilities Employed to Meet Client Needs: Spectroscopic understanding of molecules and bacteria; use of electronics to collect data; data processing and analysis; understanding and operation of FT-infrared spectrometers for spectra characterization; microbiological techniques in cell culturing; statistical analysis of large, complex data sets, data analysis to obtain key chemical and biological information; reporting of findings (including numerous open literature publications).
Selected Links to Related Information:
- Similar Technology Examples (Same or Different Application)
Contact: Nancy Foster-Mills
