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- W1990478857 abstract "The detection of hepatitis B virus in blood specimens is carried out commonly by measuring surface antigen (HBsAg) levels with assays designed for various random access immunoanalysers or rapid near-patient testing. These methods leave much to be desired in performance or throughput. The aim of this study was to develop a nanoparticle label-based rapid and sensitive HBsAg immunoassay and evaluate its performance compared to a well-established reference immunoassay (Enzygnost HBsAg 5.0). The assay developed is based on kinetic format and relies on one-step two-site antibody-antigen interaction. Europium(III)-chelate-doped nanoparticles and microtiter wells were coated with anti-HBsAg monoclonal antibodies specific for discrete epitopes. The adaptation of nanoparticle labels for quantitative HBsAg detection showed improved sensitivity (LLD: 0.028 ng/ml) and dynamics (up to 1000 ng/ml) with reasonably low coefficients of variation (concentration-CV%s 2.8-21.9%). Furthermore, concurrent sample runs with the ELISA reference method showed 100% agreement. The time required for the assay was only 10 min facilitating a rapid and convenient method for hepatitis B screening." @default.
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- W1990478857 date "2005-10-01" @default.
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- W1990478857 title "Rapid and sensitive HBsAg immunoassay based on fluorescent nanoparticle labels and time-resolved detection" @default.
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- W1990478857 doi "https://doi.org/10.1016/j.jviromet.2005.05.012" @default.
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