• Title/Summary/Keyword: Poly-L-lysine coated glass slide

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Optimization of a Diagnostic DNA Chip for Fish Rhabdovirus

  • Kim Young Ju;Kang Ji Hee;Kim Su Mi;Park Soo Il;Kim Sang Bong;Lee Myung Suk
    • Fisheries and Aquatic Sciences
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    • v.8 no.3
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    • pp.122-127
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    • 2005
  • A DNA chip that rapidly and accurately detects the viral genes in rhabdovirus-infected fish was developed. The N, Ml, and G proteins of three rhabdovirus strains, infectious hematopoietic necrosis virus (IHNV), viral hemorrhagic septicemia virus (VHSV), and flounder rhabdovirus (HIRRV), were selected for use as probes. The sequences of the corresponding genes were obtained, and probes were prepared by PCR using specific primer sets. The specificity of the probes was confirmed by cross PCR. The prepared probes were spotted on poly-L-lysine- or aminosilane-coated glass slides and hybridized with target DNA under several different conditions in order to determine the optimal hybridization temperature, glass-slide coating, and target cDNA concentration.

Detection of viability Change of Escherichia coli O157:H7 using Surface Plasmon Resonance

  • Park, Gwang-Won;Lee, U-Chang;Lee, Won-Hong;Choe, Jeong-U
    • 한국생물공학회:학술대회논문집
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    • 2003.04a
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    • pp.635-638
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    • 2003
  • For the acute assessment on biological toxicity of wastewater, surface plasmon resonance(SPR) based cell viability detection was performed using gold surface-confined cell as a result of adhesion-modifying chemicals. Escherichia coli O157:H7 (E. coli O157:H7) was investigated after exposure to EDTA. Cells were immobilized on gold coated slide glass for SPR analysis by the method of cross-linking carboxyl group on the bacterial surface with amine group of poly-L-lysine that had been coupled to the gold surface modified by a self-assembled monolayer of 11-mercaptounde canoic acid (11-(MUA)). Reflective intensity of each flow step was changed with respect to confect of ethylenediaminetetraacetic acid (EDTA) disodium salt and phosphate-buffered saline (PBS) solution. The proposed detection technique can be used for biological toxicity test.

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