Detailed Information on Publication Record
2021
Effect of Particle Size and Surface Chemistry of Photon-Upconversion Nanoparticles on Analog and Digital Immunoassays for Cardiac Troponin
BRANDMEIER, Julian, Kirsti RAIKO, Zdeněk FARKA, Riikka PELTOMAA, Matthias Jürgen MICKERT et. al.Basic information
Original name
Effect of Particle Size and Surface Chemistry of Photon-Upconversion Nanoparticles on Analog and Digital Immunoassays for Cardiac Troponin
Authors
BRANDMEIER, Julian (276 Germany), Kirsti RAIKO (246 Finland), Zdeněk FARKA (203 Czech Republic, guarantor, belonging to the institution), Riikka PELTOMAA (246 Finland), Matthias Jürgen MICKERT (276 Germany), Antonín HLAVÁČEK (203 Czech Republic), Petr SKLÁDAL (203 Czech Republic, belonging to the institution), Tero SOUKKA and Hans-Heiner GORRIS (276 Germany)
Edition
Advanced Healthcare Materials, Wiley-VCH, 2021, 2192-2640
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10406 Analytical chemistry
Country of publisher
United States of America
Confidentiality degree
není předmětem státního či obchodního tajemství
References:
Impact factor
Impact factor: 11.092
RIV identification code
RIV/00216224:14310/21:00119240
Organization unit
Faculty of Science
UT WoS
000673454600001
Keywords in English
anti-Stokes emission; cardiac arrest; lanthadine-dopoed nanomaterials; single-molecule immunoassay; troponin; photon-upconversion; upconversion-linked immunosorbent assay
Tags
International impact, Reviewed
Změněno: 14/10/2024 12:27, Ing. Monika Szurmanová, Ph.D.
Abstract
V originále
Sensitive immunoassays are required for troponin, a low-abundance cardiac biomarker in blood. In contrast to conventional (analog) assays that measure the integrated signal of thousands of molecules, digital assays are based on counting individual biomarker molecules. Photon-upconversion nanoparticles (UCNP) are an excellent nanomaterial for labeling and detecting single biomarker molecules because their unique anti-Stokes emission avoids optical interference, and single nanoparticles can be reliably distinguished from the background signal. Here, the effect of the surface architecture and size of UCNP labels on the performance of upconversion-linked immunosorbent assays (ULISA) is critically assessed. The size, brightness, and surface architecture of UCNP labels are more important for measuring low troponin concentrations in human plasma than changing from an analog to a digital detection mode. Both detection modes result approximately in the same assay sensitivity, reaching a limit of detection (LOD) of 10 pg mL−1 in plasma, which is in the range of troponin concentrations found in the blood of healthy individuals.
Links
GA21-03156S, research and development project |
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LQ1601, research and development project |
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LTAB19011, research and development project |
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90127, large research infrastructures |
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