Detailed Information on Publication Record
2022
Influence of Label and Solid Support on the Performance of Heterogeneous Immunoassays
MAKHNEVA, Ekaterina, Dorota SKLENÁROVÁ, Julian BRANDMEIER, Antonín HLAVÁČEK, Hans-Heiner GORRIS et. al.Basic information
Original name
Influence of Label and Solid Support on the Performance of Heterogeneous Immunoassays
Authors
MAKHNEVA, Ekaterina (643 Russian Federation, belonging to the institution), Dorota SKLENÁROVÁ (703 Slovakia, belonging to the institution), Julian BRANDMEIER (276 Germany, belonging to the institution), Antonín HLAVÁČEK (203 Czech Republic), Hans-Heiner GORRIS (276 Germany, belonging to the institution), Petr SKLÁDAL (203 Czech Republic, belonging to the institution) and Zdeněk FARKA (203 Czech Republic, guarantor, belonging to the institution)
Edition
Analytical Chemistry, Washington, DC, American Chemical Society, 2022, 0003-2700
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: 7.400
RIV identification code
RIV/00216224:14310/22:00127321
Organization unit
Faculty of Science
UT WoS
000889895000001
Keywords in English
Immunoassay; Magnetic preconcentration; Photon-upconversion nanoparticle; Prostate-specific antigen
Tags
International impact, Reviewed
Změněno: 24/10/2024 11:16, Mgr. Adéla Pešková
Abstract
V originále
Conventional immunochemical methods used in clinical analysis are often not sensitive enough for early-stage diagnosis, resulting in the need for novel assay formats. Here, we provide a detailed comparison of the effect of different labels and solid supports on the performance of heterogeneous immunoassays. When comparing three types of streptavidin-modified labels─horseradish peroxidase, carboxyfluorescein, and photon-upconversion nanoparticles (UCNPs)─UCNPs led to the most sensitive and robust detection of the cancer biomarker prostate-specific antigen. Additionally, we compared the immunoassay formats based on conventional microtiter plates and magnetic microbeads (MBs). In both cases, the highest signal-to-background ratios and the lowest limits of detection (LODs) were obtained by using the UCNP labels. The MB-based upconversion-linked immunosorbent assay carried out with a preconcentration step provided the lowest LOD of 0.46 pg/mL in serum. The results demonstrate that the use of UCNPs and MBs can significantly improve the sensitivity and working range of heterogeneous immunoassays for biomarker detection.
Links
EF18_053/0016952, research and development project |
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GA21-03156S, research and development project |
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90127, large research infrastructures |
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