Comparative validation of a microcapsule-based immunoassay for the detection of proteins and nucleic acids.

To detect and study diseases, research and clinical laboratories must quantify specific biomarkers in the plasma and urine of patients with precision, sensitivity, and cost-effectiveness. Newly developed techniques, such as particle-based immunoassays, must be validated in these terms against standa...

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Main Authors: Sujit Kumar Verma, Anja Karin Albrecht, Verena Siebecke, Gerd Klöck, Tatiana A Kolesnikova, Sebastian Springer
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2018-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC6054379?pdf=render
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author Sujit Kumar Verma
Anja Karin Albrecht
Verena Siebecke
Gerd Klöck
Tatiana A Kolesnikova
Sebastian Springer
author_facet Sujit Kumar Verma
Anja Karin Albrecht
Verena Siebecke
Gerd Klöck
Tatiana A Kolesnikova
Sebastian Springer
author_sort Sujit Kumar Verma
collection DOAJ
description To detect and study diseases, research and clinical laboratories must quantify specific biomarkers in the plasma and urine of patients with precision, sensitivity, and cost-effectiveness. Newly developed techniques, such as particle-based immunoassays, must be validated in these terms against standard methods such as enzyme-linked immunosorbent assays (ELISAs). Here, we compare the performance of assays that use hollow polyelectrolyte microcapsules with assays based on solid plastic beads, and with standard microplate immunoassays. The polyelectrolyte microcapsules detect the disease biomarker beta-2 microglobulin with a fifty-fold increase in sensitivity than polystyrene (PS) beads. For sequence-specific nucleic acid detection, the oligonucleotide-coated microcapsules exhibit a two-fold lower increase in sensitivity over PS beads. The microcapsules also detect the presence of a monoclonal antibody in hybridoma supernatant at a fifty-six-fold increase in sensitivity compared to a microplate assay. Overall, polyelectrolyte microcapsule-based assays are more sensitive for the detection of protein and nucleic acid analytes than PS beads and microplate assays, and they are viable alternatives as a platform for the rapid quantitative detection of analytes at very low concentrations.
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spelling doaj.art-4c33fd789c5d4f278a9ac60bf39265662022-12-22T03:39:47ZengPublic Library of Science (PLoS)PLoS ONE1932-62032018-01-01137e020100910.1371/journal.pone.0201009Comparative validation of a microcapsule-based immunoassay for the detection of proteins and nucleic acids.Sujit Kumar VermaAnja Karin AlbrechtVerena SiebeckeGerd KlöckTatiana A KolesnikovaSebastian SpringerTo detect and study diseases, research and clinical laboratories must quantify specific biomarkers in the plasma and urine of patients with precision, sensitivity, and cost-effectiveness. Newly developed techniques, such as particle-based immunoassays, must be validated in these terms against standard methods such as enzyme-linked immunosorbent assays (ELISAs). Here, we compare the performance of assays that use hollow polyelectrolyte microcapsules with assays based on solid plastic beads, and with standard microplate immunoassays. The polyelectrolyte microcapsules detect the disease biomarker beta-2 microglobulin with a fifty-fold increase in sensitivity than polystyrene (PS) beads. For sequence-specific nucleic acid detection, the oligonucleotide-coated microcapsules exhibit a two-fold lower increase in sensitivity over PS beads. The microcapsules also detect the presence of a monoclonal antibody in hybridoma supernatant at a fifty-six-fold increase in sensitivity compared to a microplate assay. Overall, polyelectrolyte microcapsule-based assays are more sensitive for the detection of protein and nucleic acid analytes than PS beads and microplate assays, and they are viable alternatives as a platform for the rapid quantitative detection of analytes at very low concentrations.http://europepmc.org/articles/PMC6054379?pdf=render
spellingShingle Sujit Kumar Verma
Anja Karin Albrecht
Verena Siebecke
Gerd Klöck
Tatiana A Kolesnikova
Sebastian Springer
Comparative validation of a microcapsule-based immunoassay for the detection of proteins and nucleic acids.
PLoS ONE
title Comparative validation of a microcapsule-based immunoassay for the detection of proteins and nucleic acids.
title_full Comparative validation of a microcapsule-based immunoassay for the detection of proteins and nucleic acids.
title_fullStr Comparative validation of a microcapsule-based immunoassay for the detection of proteins and nucleic acids.
title_full_unstemmed Comparative validation of a microcapsule-based immunoassay for the detection of proteins and nucleic acids.
title_short Comparative validation of a microcapsule-based immunoassay for the detection of proteins and nucleic acids.
title_sort comparative validation of a microcapsule based immunoassay for the detection of proteins and nucleic acids
url http://europepmc.org/articles/PMC6054379?pdf=render
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