Immunochromatographic assay of T-2 toxin using labeled anti-species antibodies
A new scheme of immunochromatographic assay was developed for the highly sensitive detection of low-molecular-weight analytes. This scheme includes the following two steps: the formation of complexes of free specific antibodies with an antigen and their detection by anti-species antibodies conjugate...
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| Veröffentlicht in: | Applied biochemistry and microbiology 2017-09, Vol.53 (5), p.594-599 |
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| container_title | Applied biochemistry and microbiology |
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| creator | Urusov, A. E. Petrakova, A. V. Bartosh, A. V. Gubaydullina, M. K. Zherdev, A. V. Dzantiev, B. B. |
| description | A new scheme of immunochromatographic assay was developed for the highly sensitive detection of low-molecular-weight analytes. This scheme includes the following two steps: the formation of complexes of free specific antibodies with an antigen and their detection by anti-species antibodies conjugated to gold nanoparticles as the label. This scheme was tested with mycotoxin T-2 toxin in maize extracts. The use of specific antibodies and a label as two individual components made it possible to independently vary their concentrations with a simultaneous decrease in the detection limit and an increase in the color intensity. The assay did not require additional reagents and manipulations. The instrumental and visual detection limits of the designed test system were 0.1 and 5.0 ng/mL, respectively (2 and 90 ng per gram of analytes), which are two orders of magnitude lower compared to conventional immunochromatography using the same reagents. |
| doi_str_mv | 10.1134/S0003683817050167 |
| format | Article |
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E. ; Petrakova, A. V. ; Bartosh, A. V. ; Gubaydullina, M. K. ; Zherdev, A. V. ; Dzantiev, B. B.</creator><creatorcontrib>Urusov, A. E. ; Petrakova, A. V. ; Bartosh, A. V. ; Gubaydullina, M. K. ; Zherdev, A. V. ; Dzantiev, B. B.</creatorcontrib><description>A new scheme of immunochromatographic assay was developed for the highly sensitive detection of low-molecular-weight analytes. This scheme includes the following two steps: the formation of complexes of free specific antibodies with an antigen and their detection by anti-species antibodies conjugated to gold nanoparticles as the label. This scheme was tested with mycotoxin T-2 toxin in maize extracts. The use of specific antibodies and a label as two individual components made it possible to independently vary their concentrations with a simultaneous decrease in the detection limit and an increase in the color intensity. The assay did not require additional reagents and manipulations. The instrumental and visual detection limits of the designed test system were 0.1 and 5.0 ng/mL, respectively (2 and 90 ng per gram of analytes), which are two orders of magnitude lower compared to conventional immunochromatography using the same reagents.</description><identifier>ISSN: 0003-6838</identifier><identifier>EISSN: 1608-3024</identifier><identifier>DOI: 10.1134/S0003683817050167</identifier><language>eng</language><publisher>Moscow: Pleiades Publishing</publisher><subject>Antibodies ; Assaying ; Biochemistry ; Biomedical and Life Sciences ; Detection limits ; Gold ; Immunoglobulins ; Life Sciences ; Medical Microbiology ; Microbiology ; Mycotoxins ; Nanoparticles ; Reagents ; Toxins</subject><ispartof>Applied biochemistry and microbiology, 2017-09, Vol.53 (5), p.594-599</ispartof><rights>Pleiades Publishing, Inc. 2017</rights><rights>Applied Biochemistry and Microbiology is a copyright of Springer, 2017.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c316t-a69afb9bd21524e2e6517e10264f75ff937420364db5a1fb577f0de5938219333</citedby><cites>FETCH-LOGICAL-c316t-a69afb9bd21524e2e6517e10264f75ff937420364db5a1fb577f0de5938219333</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1134/S0003683817050167$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1134/S0003683817050167$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,27924,27925,41488,42557,51319</link.rule.ids></links><search><creatorcontrib>Urusov, A. 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| subjects | Antibodies Assaying Biochemistry Biomedical and Life Sciences Detection limits Gold Immunoglobulins Life Sciences Medical Microbiology Microbiology Mycotoxins Nanoparticles Reagents Toxins |
| title | Immunochromatographic assay of T-2 toxin using labeled anti-species antibodies |
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