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http://dx.doi.org/10.14478/ace.2014.1083

An Enzyme-linked Immunosorbent Assay Strip Sensor for the Detection of Legionella Pneumophila  

Kim, Young-Kee (Department of Chemical Engineering and Research Center for Chemical Technology, Hankyong National University)
Park, Sojung (Department of Chemical Engineering and Research Center for Chemical Technology, Hankyong National University)
Publication Information
Applied Chemistry for Engineering / v.25, no.5, 2014 , pp. 544-547 More about this Journal
Abstract
In this study, an enzyme-linked immunosorbent assay (ELISA) and immuno-chromatographic technique were combined to fabricate immuno-strip sensors for the detection of Legionella pneumophila. The immuno-strip sensor was manufactured with four different membranes. A nitrocellulose membrane was used to immobilize capture antibody and generate signals due to the high affinity to antibodies, and glass fiber membranes were used as a conjugate release pad and a sample application pad. A cellulose membrane was used as an absorption pad to induce sample flow by the capillarity. Colorimetric signals produced by sandwich immuno-reaction and enzyme reaction could be analyzed qualitatively and quantitatively within 30 min. Under the given experimental conditions, sensor signals with L. pneumophila samples were observed qualitatively by naked eyes and measured quantitatively in a range of $1.3{\times}10^3-1.3{\times}10^6CFU/mL$ with a digital camera and home-made image analysis software.
Keywords
Legionella pneumophila; Immuno-strip sensor; Enzyme-linked immunosorbent assay; Immuno-chromatographic assay;
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Times Cited By KSCI : 3  (Citation Analysis)
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