Electronic Detection Strategies for a MEMS-Based Biosensor

  1. Lookup NU author(s)
  2. Richie Burnett
  3. Dr Alun Harris
  4. Dr Pedro Ortiz
  5. Dr John Hedley
  6. Emeritus Professor James Burdess
  7. Dr Neil Keegan
  8. Julia Spoors
  9. Professor Calum McNeil
Author(s)Burnett R, Harris AJ, Ortiz P, Hedley J, Burdess JS, Keegan N, Spoors JA, McNeil CJ
Publication type Article
JournalJournal of Microelectromechanical Systems
ISSN (print)1057-7157
ISSN (electronic)1941-0158
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This work reports on the development of control electronics for a resonant mode biosensor. The laboratory demonstrated sensor initially showed a signal-to-noise ratio of -100 dB. With the application of half-frequency drive, frequency down conversion, appropriate filtering, and digital signal processing, a cost-effective electronic solution demonstrated a signal-to-noise ratio of +30 dB. This paper highlights important aspects in the design of integrated solutions to microelectromechanical systems-based sensors.
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