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Chemical Free Water Analysis with Nanoelectrode Arrays

Sandia National Laboratories

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PDF Document PublicationMarket Sheet (759 KB)

<em>Nanoelectrode Array</em>
Nanoelectrode Array

Technology Marketing Summary

Electrochemical analysis is a highly sensitive, chemically selective method for identifying and quantifying many different chemicals in water.  Previous art required  field samples be transported to a laboratory where additional chemicals would be added before the analysis could be performed.  Sandia National Laboratories has invented an electrochemical analysis method that has eliminated the need to add chemicals to the testing process while increasing the effectiveness and time efficiency of the process.  



This unique nanoelectrode sensor array integrates into a small, integrated sensor system which allows for rapid, non-contaminating field analysis at the parts per billion level. The optimal electrode density provides ideal time response and on-site sampling without the need to add chemicals or transport samples to a laboratory. The sensors also provide real-time calibrated results through a substractive anionic stripping voltametry (SASV).

  • Eliminates need of lab chemical additives
  • Real-time, on-site test results
  • Reduced costs
  • Provides calibrated results
  • Electronic sampling sensitive enough for parts-per-billion levels
Applications and Industries
  • Water supply
  • Public safety
  • Environmental testing
More Information

This technology is now available as a Ready to Sign License.

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Patents and Patent Applications
ID Number
Title and Abstract
Primary Lab
Patent 7,625,469
Nanoelectrode array for electrochemical analysis
A nanoelectrode array comprises a plurality of nanoelectrodes wherein the geometric dimensions of the electrode controls the electrochemical response, and the current density is independent of time. By combining a massive array of nanoelectrodes in parallel, the current signal can be amplified while still retaining the beneficial geometric advantages of nanoelectrodes. Such nanoelectrode arrays can be used in a sensor system for rapid, non-contaminating field analysis. For example, an array of suitably functionalized nanoelectrodes can be incorporated into a small, integrated sensor system that can identify many species rapidly and simultaneously under field conditions in high-resistivity water, without the need for chemical addition to increase conductivity.
Sandia National Laboratories 12/01/2009
Technology Status
Technology IDDevelopment StageAvailabilityPublishedLast Updated
US Patent 7,625,469Prototype - Sandia estimates the TRL at approximately 6. Representative of the deliverable demonstrated in relevant environments. Available - Various license and partnering options are available, including a Ready-to-Sign License Option. Please contact the Intellectual Property department to discuss. 09/09/201006/05/2013

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