Sensitive immunoassay detection of multiple environmental chemicals on protein microarrays using DNA/dye conjugate as a fluorescent label
Journal of Environmental Monitoring, ISSN: 1464-0325, Vol: 14, Issue: 5, Page: 1345-1352
2012
- 18Citations
- 14Captures
- 1Mentions
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Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
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Metrics Details
- Citations18
- Citation Indexes18
- 18
- CrossRef17
- Captures14
- Readers14
- 14
- Mentions1
- News Mentions1
- News1
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Article Description
Indirect competitive immunoassays were developed on protein microarrays for the sensitive and simultaneous detection of multiple environmental chemicals in one sample. In this assay, a DNA/SYTOX Orange conjugate was employed as an antibody label to increase the fluorescence signal and sensitivity of the immunoassays. Epoxy-modified glass slides were selected as the substrate for the production of 4 × 4 coating antigen microarrays. With this signal-enhancing system, competition curves for 17β-estradiol (E2), benzo[a]pyrene (BaP) and 2,2′,4,4′-tetrabromodiphenyl ether (BDE-47) were obtained individually on the protein microarray. The IC and calculated limit of detection (LOD) are 0.32 μg L and 0.022 μg L for E2, 37.2 μg L and 24.5 μg L for BaP, and 31.6 μg L and 2.8 μg L for BDE-47, respectively. LOD of E2 is 14-fold lower than the value reported in a previous study using Cy3 labeled antibody (Du et al., Clin. Chem, 2005, 51, 368-375). The results of the microarray immunoassay were within 15% of chromatographic analysis for all three pollutants in spiked river water samples, thus verifying the immunoassay. Simultaneous detection of E2, BaP and BDE-47 in one sample was demonstrated. There was no cross-reaction in the immunoassay between these three environmental chemicals. These results suggest that microarray-based immunoassays with DNA/dye conjugate labels are useful tools for the rapid, sensitive, and high throughput screening of multiple environmental contaminants. © 2012 The Royal Society of Chemistry.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84860750177&origin=inward; http://dx.doi.org/10.1039/c2em10956e; http://www.ncbi.nlm.nih.gov/pubmed/22437995; https://xlink.rsc.org/?DOI=c2em10956e; https://dx.doi.org/10.1039/c2em10956e; https://pubs.rsc.org/en/content/articlelanding/2012/em/c2em10956e
Royal Society of Chemistry (RSC)
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