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Related Experiment Videos

Polymeric membranes for silicon based (bio)sensors.

P Arquint1, A van den Berg, D J Strike

  • 1Institute of Microtechnology, University of Neuchâtel, Switzerland.

Journal of Biomaterials Applications
|July 1, 1992
PubMed
Summary

New membrane deposition techniques enhance electrochemical sensors. This study details methods for fabricating glucose, oxygen, pCO2, and chlorine sensors using advanced materials and silicon-based transducers.

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Area of Science:

  • Sensor Technology
  • Materials Science
  • Electrochemistry

Background:

  • Recent advancements in materials and technology have significantly impacted chemical and biochemical sensor research.
  • Solid-state technology has enabled new designs for classical sensor devices, particularly in transducer realization.

Purpose of the Study:

  • To present various membrane deposition techniques for planar, silicon-based electrochemical transducers.
  • To demonstrate the fabrication of specific sensors, including glucose, oxygen, pCO2, and free-chlorine sensors, using these techniques.

Main Methods:

  • Casting and electrochemical deposition for glucose oxidase membranes in glucose enzyme electrodes.
  • Photolithographic patterning of polyacrylamide hydrogel and siloxane-based gas-permeable membranes for oxygen and pCO2 sensors.

Related Experiment Videos

  • Photolithographic patterning of polyHEMA hydrogel for a free-chlorine sensor.

    • Main Results:

    • Successful fabrication of glucose enzyme electrodes using casting and electrochemical deposition.
    • Development of an amperometric oxygen sensor and an Ion-Selective Field-Effect Transistor (ISFET)-based pCO2 device utilizing photolithographic patterning.
    • Demonstration of a free-chlorine sensor fabricated with photolithographically patterned polyHEMA hydrogel.

    Conclusions:

    • Membrane deposition techniques, particularly photolithography, are crucial for fabricating advanced electrochemical sensors.
    • The described methods enable the creation of miniaturized and high-performance sensors for various analytes.
    • Integration of novel materials with silicon-based transducers opens new avenues in sensor development.