| MODLITBOVÁ, Pavlína, Zdeněk FARKA, Matěj PASTUCHA, Pavel POŘÍZKA, Karel NOVOTNÝ, Petr SKLÁDAL and Jozef KAISER. Laser-induced breakdown spectroscopy as a novel readout method for nanoparticle-based immunoassays. Microchimica Acta. Vienna: Springer, 2019, vol. 186, No 9, p. 1-10. ISSN 0026-3672. Available from: https://dx.doi.org/10.1007/s00604-019-3742-9. |
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@article{1549721,
author = {Modlitbová, Pavlína and Farka, Zdeněk and Pastucha, Matěj and Pořízka, Pavel and Novotný, Karel and Skládal, Petr and Kaiser, Jozef},
article_location = {Vienna},
article_number = {9},
doi = {http://dx.doi.org/10.1007/s00604-019-3742-9},
keywords = {Collinear plasma collection; Gold nanoparticles; Laser ablation; Microtiter plate; Sandwich immunoassay; Silver nanoparticles; Streptavidin; Tag-LIBS},
language = {eng},
issn = {0026-3672},
journal = {Microchimica Acta},
title = {Laser-induced breakdown spectroscopy as a novel readout method for nanoparticle-based immunoassays},
url = {https://link.springer.com/article/10.1007%2Fs00604-019-3742-9},
volume = {186},
year = {2019}
}
TY - JOUR
ID - 1549721
AU - Modlitbová, Pavlína - Farka, Zdeněk - Pastucha, Matěj - Pořízka, Pavel - Novotný, Karel - Skládal, Petr - Kaiser, Jozef
PY - 2019
TI - Laser-induced breakdown spectroscopy as a novel readout method for nanoparticle-based immunoassays
JF - Microchimica Acta
VL - 186
IS - 9
SP - 1-10
EP - 1-10
PB - Springer
SN - 00263672
KW - Collinear plasma collection
KW - Gold nanoparticles
KW - Laser ablation
KW - Microtiter plate
KW - Sandwich immunoassay
KW - Silver nanoparticles
KW - Streptavidin
KW - Tag-LIBS
UR - https://link.springer.com/article/10.1007%2Fs00604-019-3742-9
L2 - https://link.springer.com/article/10.1007%2Fs00604-019-3742-9
N2 - Laser-induced breakdown spectroscopy (LIBS) was examined as a novel method for readout of microtiter plate immunoassays involving nanoparticles (NP). The so-called Tag-LIBS technique is a sensitive method for the detection of specific biomarkers. It was applied to the determination of NP labels using nanosecond ablation sampling. The NP labels were examined from the bottom of a standard 96-well microtiter plate. Thanks to the flexibility of LIBS instrumentation, both the plasma emission collection and the focusing optics arrangements can be collinearly arranged. The experiments showed that silver NPs and gold NPs can be readily quantified on the bottom of the microtiter plate. Utilizing this technique, a sandwich immunoassay for human serum albumin using streptavidin-coated AgNP labels was developed. The assay has a 10 ng·mL-1 detection limit which is comparable to the sensitivity of fluorometric readout. The main advantage of this LIBS technique is its wide scope in which it enables a detection of almost any type of NP labels, irrespective to any fluorescence or catalytic properties. Owing to the immediate signal response, the relatively simple instrumentation also enables assay automation. The LIBS capability of multi-elemental analyses makes it a promising and fast alternative to other readout techniques, in particular with respect to multiplexed detection of biomarkers.
ER -
MODLITBOVÁ, Pavlína, Zdeněk FARKA, Matěj PASTUCHA, Pavel POŘÍZKA, Karel NOVOTNÝ, Petr SKLÁDAL and Jozef KAISER. Laser-induced breakdown spectroscopy as a novel readout method for nanoparticle-based immunoassays. \textit{Microchimica Acta}. Vienna: Springer, 2019, vol.~186, No~9, p.~1-10. ISSN~0026-3672. Available from: https://dx.doi.org/10.1007/s00604-019-3742-9.
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