• 제목/요약/키워드: Biochip

검색결과 163건 처리시간 0.033초

Nanofluidic Biochip

  • Chang, Jun-Keun
    • 순환기질환의공학회:학술대회논문집
    • /
    • 순환기질환의공학회 2002년도 춘계학술강연회 자료집
    • /
    • pp.85-100
    • /
    • 2002
  • PDF

Immobilization of enzymes on magnetic nanoparticles for biochip applications

  • Sohn, Ok-Jae;Rhee, Jong-Il
    • 한국생물공학회:학술대회논문집
    • /
    • 한국생물공학회 2003년도 생물공학의 동향(XIII)
    • /
    • pp.692-695
    • /
    • 2003
  • In this work immobilization technique of enzymes onto the magnetic nanoparticles has been developed for biochip applications. Glucose oxidase and lactate dehydrogenase were immobilized on magnetic nanoparticles via cyanamide and glutaraldehyde. Immobilized enzymes had good operational and storage stability The immobilized glucose oxidase and lactate dehydrogenase were characterized by some factors(pH, temperature, and components of buffer solution etc) which affect the activity, In order to characterize the magnetic nanoparticles, we have used transmission electron microscopy(TEM), X-ray diffraction(XRD) and Fourier transform infrared(FTIR).

  • PDF

바이오칩 제작 장치용 단결정 실리콘 마이크로 미러 어레이의 설계와 제작 (Design and fabrication of a single crystalline silicon micromirror array for biochip fabrication systems)

  • 장윤호;이국녕;김용권
    • 대한전기학회:학술대회논문집
    • /
    • 대한전기학회 2003년도 추계학술대회 논문집 전기물성,응용부문
    • /
    • pp.49-52
    • /
    • 2003
  • Single crystalline silicon (SCS) was adopted for a reliable micromirror array of biochip fabrication applications. SCS has excellent mechanical properties and smooth surface, which is the best material for micromirror devices. The mirror array has $16{\times}16$ micromirrors and each mirror has a $120{\mu}m{\times}100{\mu}m$ reflective surface. The micromirror has simple torsional beam springs and electrostatic force was used for driving. The designed tilting angle was $9.6^{\circ}$, and the tilting angles were measured according to applied voltages. The surface roughness was measured by a laser profiler. The response time was measured using He-Ne laser and position sensitive diode (PSD), and the lifetime was checked for reliability proof.

  • PDF

마이크로머시닝 기술을 이용한 3차원 마이크로 챔버형 글루코스 센서의 개발 (Development of Three-dimensional Chamber-type Glucose Sensor Using Micromachining Technology)

  • 김성호;김창교
    • 한국산학기술학회논문지
    • /
    • 제6권1호
    • /
    • pp.24-28
    • /
    • 2005
  • 3차원 실리콘 챔버를 갖는 $15.8{\times}15.8 mm^2$크기의 칩을 바이오 센서용으로 마이크로머시닝 기술을 이용하여 개발하였다. 비등방성 식각기술을 이용하여 (100)방향의 p형 실리콘 웨이퍼위에 마이크로 챔버를 형성하였다. 마이크로 챔버를 갖는 웨이퍼와 백금전극이 도포된 Pyrex 유리를 DGF-48S 접착제를 이용하여 접합하였다. 백금전극과 Ag/AgCl 기준전극에 의한 전기화학적 특성을 조사하였다.

  • PDF

마이크로미러를 사용한 바이오칩의 선택적 표면 개질을 위한 광변조 실험 (Selective surface modification for biochip with micromirror array)

  • 이국녕;신동식;이윤식;김용권
    • 대한전기학회:학술대회논문집
    • /
    • 대한전기학회 2000년도 하계학술대회 논문집 C
    • /
    • pp.2257-2259
    • /
    • 2000
  • This paper reports on the design, fabrication and driving experiment of micro mirror array(MMA) for lithography process to apply to biochip fabrication Photolithography technology is applied to activate specific area on the surface of modified glass surface, DNA monomers are bound on the activated area of the glass surface. After repeat of DNA monomer synthesizing process, DNA single strand probes could be solid-synthesized on the glass substrate. Without using photomask, photolithography process is tried using micro mirror array(MMA). Photomask or mask alignment is not required in maskless photolithography process using micro mirror array.

  • PDF

생명정보학과 유전체의학 (Bioinformatics and Genomic Medicine)

  • 김주한
    • Journal of Preventive Medicine and Public Health
    • /
    • 제35권2호
    • /
    • pp.83-91
    • /
    • 2002
  • Bioinformatics is a rapidly emerging field of biomedical research. A flood of large-scale genomic and postgenomic data means that many of the challenges in biomedical research are now challenges in computational sciences. Clinical informatics has long developed methodologies to improve biomedical research and clinical care by integrating experimental and clinical information systems. The informatics revolutions both in bioinformatics and clinical informatics will eventually change the current practice of medicine, including diagnostics, therapeutics, and prognostics. Postgenome informatics, powered by high throughput technologies and genomic-scale databases, is likely to transform our biomedical understanding forever much the same way that biochemistry did a generation ago. The paper describes how these technologies will impact biomedical research and clinical care, emphasizing recent advances in biochip-based functional genomics and proteomics. Basic data preprocessing with normalization, primary pattern analysis, and machine learning algorithms will be presented. Use of integrated biochip informatics technologies, text mining of factual and literature databases, and integrated management of biomolecular databases will be discussed. Each step will be given with real examples in the context of clinical relevance. Issues of linking molecular genotype and clinical phenotype information will be discussed.