센서학회지 (Journal of Sensor Science and Technology)

  • 제25권2호
  • /
  • Pages.143-147
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  • 2016
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  • 1225-5475(pISSN)
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  • 2093-7563(eISSN)
한국센서학회 (The Korean Sensors Society)
권호 표지
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반사광 측정 모드에서 금과 은을 사용한 이층 금속 칩과 삼층 금속 칩의 특성 연구

Characteristics of Gold and Silver Based Bi- and Tri-metallic SPR Chip in the Intensity Measurement Mode

  • 김형진 (대구가톨릭대학교 의공학과) ;
  • 김창득 (경북대학교 물리학과) ;
  • 손영수 (대구가톨릭대학교 의공학과)
  • Kim, Hyungjin (Dept. of Biomedical Engineering, Catholic University of Daegu) ;
  • Kim, Chang-duk (Dept. of Physics, Kyungpook National Unversity) ;
  • Sohn, Young-Soo (Dept. of Biomedical Engineering, Catholic University of Daegu)
  • 투고 : 2016.02.15
  • 심사 : 2016.03.30
  • 발행 : 2016.03.31
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초록

Characteristics of the conventional gold (Au) surface plasmon resonance (SPR) chip, bi-metallic(Au/silver (Ag)) SPR chip, and tri-metallic(Au/Ag/Au) SPR chip were investigated and compared in the intensity measurement mode for the enhancement of SPR image sensor reactivity. Reflectance curves of the Au, bi- and tri-metallic SPR chips were acquired in phosphate-buffered saline (PBS) solution and were compared. The line width of the reflectance curve of the bi-metallic chip was the narrowest among the three different types of the chips. Also, the tangential slope of the bi-metallic chip was steeper than those of the other chips. Various concentrations of bovine serum albumin (BSA) were utilized in the SPR experiment. As a result, among the above three chips reflectance variation value of the bi-metallic chip was the largest.

키워드

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피인용 문헌

  1. Surface plasmon resonance sensing of a biomarker of Alzheimer disease in an intensity measurement mode with a bimetallic chip vol.69, pp.5, 2016, https://doi.org/10.3938/jkps.69.793