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Chemical Sensors

Selective Chemical Concentrator Materials (420)

Graphic of MIPs Fabrication Process Imprinted Media for High Selectivity Sensors (238)

Problem: Need to extract and concentrate target chemicals from "dirty" environmental samples to improve detection.

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

PNNL Solution:

  • Developed highly selective MIPs (molecularly imprinted polymers) to capture target molecules from aqueous samples
  • Used MIPs to capture analyte from sample, then desorb the target from the MIP (by chemical or thermal means)
  • Demonstrated selective concentration of a variety of analytes from complex samples using IMS or HPLC

Capabilities Employed to Meet Client Needs: Polymer synthesis; affinity binding agents; material imprint preparation and processing, selective sorption, selective aqueous interactions, organism class separation, bacterial-mediated lithography; bio-imprinting; multiple sensor testing platforms.

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Contact: Scott Harvey

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