Journal of Sensor Science and Technology (센서학회지)

The Korean Sensors Society (한국센서학회)
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Fabrication and chracteristics of MOSFET type protein sensor using extended gate

Extended Gate를 이용한 MOSFET형 단백질 센서 제작 및 특성

  • Lee, Sang-Kwon (Department of Sensor and Display Engineering Kyungpook National University) ;
  • Sohn, Young-Soo (Daegu Gyeonbuk Institute of Science & Technology) ;
  • Choi, Sie-Young (Department of Electronics Kyungpook National University)
  • 이상권 (경북대학교 센서 및 디스플레이공학과) ;
  • 손영수 (대구경북과학기술연구원) ;
  • 최시영 (경북대학교 전자공학과)
  • Published : 2007.03.31
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Abstract

In this paper, we have fabricated on extended-gate field effect transistor (EGFET)-type protein sensor for the application to a CRP detection. We used the self-assembled monolayer (SAM) to adhere or entrap biomolecules, namely CRP antibodies. The experimental result shows that the proposed SAM is well immobilized on the gold gate surface. So the drain current was varied by antigen-antibody interactions on the gate surface because of the CRP charge. Experimental results related to the formation of SAM, antibody, antigen were obtained by measuring the electrical characteristics of the EGFET device.

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References

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