Chemiluminescent enzyme-linked immunosorbent assay on a strip to detect Escherichia coli O157:H7
- Authors
- Park, Sojung; Min, Junhong; Kim, Young-Kee
- Issue Date
- 2012
- Publisher
- TAYLOR & FRANCIS LTD
- Keywords
- enzyme-linked immunosorbent assay (ELISA); chemiluminescence; Escherichia coli O157:H7; chromatographic membrane strip; immunosensor
- Citation
- INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY, v.92, no.6, pp.655 - 664
- Journal Title
- INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
- Volume
- 92
- Number
- 6
- Start Page
- 655
- End Page
- 664
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/17556
- DOI
- 10.1080/03067311003782682
- ISSN
- 0306-7319
- Abstract
- A fast and sensitive chemiluminescent enzyme-linked immunosorbent assay method to measure pathogenic bacteria, Escherichia coli O157:H7, on immuno-chromatographic membrane was studied. Non-specific binding of proteins on membrane strip was controlled to attain the best performance of immunosensor by optimising the composition of a running buffer. The specificity of the proposed immunostrip was confirmed by conducting experiments for four different microorganisms. A chemiluminescent signal could be successfully generated from a proposed immunostrip sensing system, and a significant change in the chemiluminescent light intensity with the concentration of target microbes was obtained. E. coli O157:H7 could be quantitatively measured in the range of 1.1 x 10(3)-1.1 x 10(7) CFU (colony forming units) mL(-1) within 16 min by using the developed chemiluminescent immunostrip.
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