Optical and electronic signal stabilization of plasmonic fiber optic gate electrodes: towards improved real-time dual-mode biosensing
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F23%3A00574621" target="_blank" >RIV/68378271:_____/23:00574621 - isvavai.cz</a>
Result on the web
<a href="https://hdl.handle.net/11104/0346097" target="_blank" >https://hdl.handle.net/11104/0346097</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3389/fphy.2023.1202132" target="_blank" >10.3389/fphy.2023.1202132</a>
Alternative languages
Result language
angličtina
Original language name
Optical and electronic signal stabilization of plasmonic fiber optic gate electrodes: towards improved real-time dual-mode biosensing
Original language description
The use of multimodal readout mechanisms next to label-free real-time monitoring of biomolecular interactions can provide valuable insight into surface-based reaction mechanisms. To this end, the combination of an electrolyte-gated field-effect transistor (EG-FET) with a fiber optic-coupled surface plasmon resonance (FO-SPR) probe serving as gate electrode has been investigated to deconvolute surface mass and charge density variations associated to surface reactions. However, applying an electrochemical potential on such gold-coated FO-SPR gate electrodes can induce gradual morphological changes of the thin gold film, leading to an irreversible blue-shift of the SPR wavelength and a substantial signal drift. We show that mild annealing leads to optical and electronic signal stabilization (20-fold lower signal drift than as-sputtered fiber optic gates) and improved overall analytical performance characteristics.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10306 - Optics (including laser optics and quantum optics)
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Frontiers in Physics
ISSN
2296-424X
e-ISSN
2296-424X
Volume of the periodical
11
Issue of the periodical within the volume
July
Country of publishing house
CH - SWITZERLAND
Number of pages
10
Pages from-to
1202132
UT code for WoS article
001038636400001
EID of the result in the Scopus database
2-s2.0-85166015864