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Sensors & Electronics

Biological Sensors

Rapid Identification of Biological Materials (236)

Problem: Develop analytical methods to rapidly identify
unknown biological materials in the laboratory

Sample preparation and analysis graphic

Project Activity Scope (from Technical Overview Chart): Mechanisms through Sensors and Devices

PNNL Solution:

  • Use Matrix-Assisted Laser Desorption/ Ionization Mass Spectrometry (MALDI-MS) to characterize biological materials
  • Employ soft ionization technique to obtain molecular weight information from sample components
  • Analyze resultant components with time-of-flight mass spectrometer
  • Catalogue characteristic component signatures for various organisms

Capabilities Employed to Meet Client Needs: Spore culture preparation (vegetative bacteria, sporulated bacteria); BSL2 Laboratory; statistically-based data analysis algorithms; MALDI-MS applications development; experimental design; signal distribution modeling; Algoworks peak detection algorithm (PNNL patent).

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Contact: Karen Wahl

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