Journal of Life Science (생명과학회지)

Korean Society of Life Science (한국생명과학회)
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Applications of Microbial Whole-Cell Biosensors in Detection of Specific Environmental Pollutants

특이 환경오염물질 검출을 위한 미생물 세포 바이오센서의 활용

  • Shin, Hae-Ja (Energy Environmental Engineering Major, Division of Energy Bioengineering, Dongseo University)
  • 신혜자 (동서대학교 에너지생명공학부 에너지환경공학)
  • Received : 2010.09.27
  • Accepted : 2010.12.30
  • Published : 2011.01.30
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Abstract

Microbial whole-cell biosensors can be excellent analytical tools for monitoring environmental pollutants. They are constructed by fusing reporter genes (e.g., lux, gfp or lacZ) to inducible regulatory genes which are responsive to the relevant pollutants, such as aromatic hydrocarbons and heavy metals. A large spectrum of microbial biosensors has been developed using recombinant DNA technology and applied in fields as diverse as environmental monitoring, medicine, food processing, agriculture, and defense. Furthermore, their sensitivity and target range could be improved by modification of regulatory genes. Recently, microbial biosensor cells have been immobilized on chips, optic fibers, and other platforms of high-throughput cell arrays. This paper reviews recent advances and future trends of genetically modified microbial biosensors used for monitoring of specific environmental pollutants.

미생물 세포 바이오센서는 환경오염물질의 모니터링을 위한 좋은 분석도구가 될 수 있다. 이는 리포터유전자들(예로, lux, gfp or lacZ)을 방향족 화합물이나 중금속과 같은 오염물질에 반응하는 유도 조절유전자와 결합하여 만든다. 이러한 유전자 재조합기술을 이용하여 많은 종류의 미생물 바이오센서가 개발되었으며 환경, 의학, 식품, 농업, 및 방위등 다양한 분야에서 활용되고 있다. 또한 바이오센서의 민감도와 검출범위는 조절유전자의 변형을 통해 증가시킬 수있다. 최근에는 미생물 바이오센서 세포를 고효율 검색용 세포 에레이의 칩, 광섬유 등에 고착하여 활용하고 있다. 본 논문은 특이 오염물질의 검출을 위한 유전자 재조합으로 만든 미생물 세포 바이오센서의 현황과 미래에 대해 고찰한다.

Keywords

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