Electrochemical sensors that can quickly, selectively, and
sensitively detect unknown chemicals in air or water are vital for many
applications. These include environmental monitoring, biomedical diagnostics,
security applications, and food and drinking water safety. Current
electrochemical sensors fail to detect low concentrations of important analytes
and are often highly dependent on the environmental conditions. In addition,
electrical sensors are typically large and can be expensive to manufacture.
To overcome these drawbacks, researchers at the Biodesign
Institute of Arizona State University have developed an integrated sensing
device capable of detecting an analyte using a combination of electrochemical,
electrical, and/or optical signals.
The device consists of three electrodes connected via
bridging materials. The analyte is placed on the bridging materials between the
electrodes and can be analyze through optical transmission mode or through
electrical measurements through the electrode. Additionally, the bridging
materials can be modified with recognition elements for enhanced selectivity in
chemical detection.
The device that has been developed introduces synergetic
capabilities and enhances the sensitivity and selectivity for real-time
detection of an analyte in complex matrices.
Potential Applications
- Environmental detection and protection
- Security Applications
- Food and drinking water safety
- Biomedical analysis
Benefits and Advantages
- Combines three sensing platforms for increased
sensitivity and accuracy
- Detects analytes in liquids, gases, cultures and
biological tissues in real time or close to real time
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For more information about the inventor(s) and their
research, please see
Dr. Forzani's
directory webpage
Dr. Tao's
directory webpage
Dr. Tao's laboratory
webpage
Dr.
Tao's Biodesign directory webpage
