High Frequency QCM Flow Cell with Enhanced Accuracy for Liquid and Biochemical Sensing

Brigitte Paula Stehrer, Hermann Gruber, Reinhard Schwödiauer, Ingrid Graz, Siegfried Bauer

Research output: Contribution to journalArticlepeer-review

Abstract

Most biosensing systems based on thickness shear mode resonators work with resonance frequencies between 5 and 20 MHz. The utilisation of high frequency fundamental (HFF) quartz resonators could further improve the sensitivity of such systems. We designed an acoustic biosensor flow cell for HFF quartz resonators. For the development of a biosensor we solved important questions like the functionalization of the small and fragile sensor surface, the sensitive and repeatable detection of dissolved analytes and the regeneration of the sensor. The system performance is evaluated by a number of experiments including the stepwise growth of a protein multilayer system.
Original languageEnglish
Pages (from-to)1507-1510
Number of pages4
JournalProcedia Chemistry
Volume1
Issue number1
DOIs
Publication statusPublished - 2009

Fields of science

  • 103015 Condensed matter
  • 103 Physics, Astronomy
  • 103008 Experimental physics
  • 103023 Polymer physics
  • 103018 Materials physics
  • 202036 Sensor systems
  • 202022 Information technology

JKU Focus areas

  • Nano-, Bio- and Polymer-Systems: From Structure to Function
  • Engineering and Natural Sciences (in general)

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