ELECTRO OPTICAL COMPONENTS, Inc.

Diamond Detectors Limited devices are distributed exclusively in North America by ELECTRO OPTICAL COMPONENTS, Inc.

 

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Bio and Chemical Sensors

Research into boron doped diamond as a sensor electrode has excited many groups in research and industry. These materials can be provided as super polished plates (Ra<5nm), die and encapsulated devices across a broad spectrum of sensing applications.

“Diamond offers advantages over other electrodes, especially commonly used sp2 carbon electrodes, for electro-analytical measurements in terms of linear dynamic range, limit of quantitation, response time, response precision, and response stability.” Greg M. Swain, Dept of Chemistry, Michigan State University

The advantages of boron-doped diamond relative to traditional electrode materials include:
  • Wide potential window in aqueous media
  • Stable at extreme anodic and cathodic potentials
  • Stable in chemically aggressive media
  • Relatively insensitive to dissolved oxygen
  • Very low background current
  • Highly resistant to surface fouling
  • Biocompatible
  • Mechanically robust enough to withstand ultrasound, microwave or laser activation
  • Readily functionalized: e.g. hydrogen-, oxygen-, amine-, carboxyl-, or metal-nano-particle- termination possible
  • Immobilization of bio-molecules possible on functionalized diamond surfaces

Current and emerging applications include:

  • Environmental monitoring/control, e.g. trace-metal analysis; monitoring priority pollutants
  • Food and drug analysis
  • Replacing mercury electrodes in much of electro-analysis
  • As a support for electro-catalysts, such as metals and metal oxides, e.g. in fuel cells
  • Detection of biologically important molecules, e.g. glucose, dopamine
  • Biosensors in general
  • HPLC and CE (capillary electrophoresis) end-column detection
  • Real-time and in-vivo monitoring
  • Organic and inorganic electro-synthesis
  • Water treatment, e.g. pollutant destruction

Bio and Chemical Sensor Properties

Diamond Detector Selector and Technical Notes

 

 


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