Integrated MOSFET-embedded-cantilever-based biosensor characteristic for detection of anthrax simulant

Salwa Mostafa*, Ida Lee, Syed K. Islam, Sazia A. Eliza, Gajendra Shekhawat, Vinayak P. Dravid, Fahmida S. Tulip

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

14 Scopus citations


In this work, MOSFET-embedded cantilevers are configured as microbial sensors for detection of anthrax simulants, Bacillus thuringiensis. Anthrax simulants attached to the chemically treated gold-coated cantilever cause changes in the MOSFET drain current due to the bending of the cantilever which indicates the detection of anthrax simulant. Electrical properties of the anthrax simulant are also responsible for the change in the drain current. The test results suggest a detection range of 10 μL of stimulant test solution (a suspension population of 1.3×10-7 colony-forming units/mL diluted in 40% ethanol and 60% deionized water) with a linear response of 31 μAμL.

Original languageEnglish (US)
Article number5680937
Pages (from-to)408-410
Number of pages3
JournalIEEE Electron Device Letters
Issue number3
StatePublished - Mar 2011


  • Anthrax simulant
  • MOSFET-embedded cantilever
  • biosensor

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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