Yiseul RYU, Zongwen JIN, Mun Suk KANG, Hak-Sung KIM
언어
영어(ENG)
URL
https://www.earticle.net/Article/A174338
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원문정보
초록
영어
Immobilization of antibodies on carriers in an oriented manner was shown to be critical for achieving high sensitivity in immunoassays. Here we demonstrate the increase in the detection sensitivity of a lateral flow assay for a cardiac marker troponin I (cTnI) by magnetic labels with oriented immobilization of antibodies. For the construction of sensitive magnetic labels, orientated-immobilization of anti-troponin I antibodies on magnetic beads was attempted using protein G. Magnetic beads were first conjugated with protein G followed by immobilization of anti-cTnI monoclonal antibodies. The factors affecting the detection sensitivity in the lateral flow assay system were investigated. The lateral flow assay of cTnI was carried out using the magnetic beads and a Giant magnetoresistive (GMR) sensor at the optimized conditions, and compared with that using conventional random immobilization method. The detection sensitivity in the lateral flow assays using present approach was determined to be about 0.01 ng/mL, showing significantly increased sensitivity compared with conventional immobilization method. This result clearly shows that the magnetic labels with oriented immobilization of antibodies can find wide applications in the lateral flow assays of target analytes.
키워드
Protein GLateral flow assayOriented immobilizationMagnetic beadCardiac Troponin I (cTnI)
저자
Yiseul RYU [ Department of Biological Sciences, KAIST, Daejon. ]
Zongwen JIN [ Institut d'Electronique Fondamentale, Université Paris-Sud 11, Bâtiment 220, Bureau 342, 91405 ORSAY Cedex. ]
Mun Suk KANG [ LG Innotek Ltd., Ansan. ]
Hak-Sung KIM [ Department of Biological Sciences, KAIST, Daejon. ]
한국생물공학회 [The Korean Society for Biotechnology and Bioengineering]
설립연도
1984
분야
공학>생물공학
소개
이 법인은 생물 공학의 발전과 보급에 이바지하고, 회원 상호 간의 연구 협력과 친목을 도모함을 목적으로 한다
1. 생물공학 분야의 발전을 위한 연구 협력
2. 생물공학의 실용화를 촉진시키기 위한 산학 협동
3. 학술연구 발표회, 강연회, 연수회 등 학술활동의 개최
4. 국,영문 학술지,소식지,학술회의 Proceedings 및 학술도서의 발간
5. 생물공학 발전을 위한 정책 건의
6. 기타 국제 교류 등 본 학회의 목적 달성을 위한 제반 활동