Ag-Cu Nanoarchitecture for Enhanced LSPR Absorption: the Role of Surface Roughness and near-field Interactions
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F25%3A00644751" target="_blank" >RIV/60077344:_____/25:00644751 - isvavai.cz</a>
Alternative codes found
RIV/60076658:12310/25:43909856 RIV/00216208:11320/25:10506766
Result on the web
<a href="http://DOI" target="_blank" >http://DOI</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/admi.202400785" target="_blank" >10.1002/admi.202400785</a>
Alternative languages
Result language
angličtina
Original language name
Ag-Cu Nanoarchitecture for Enhanced LSPR Absorption: the Role of Surface Roughness and near-field Interactions
Original language description
The plasmonic properties and biosensing performance of a nanocomposite with incorporated Cu and Ag nanoparticles (NPs) are studied experimentally. The concept's viability is verified by detecting specific anti-decorin-binding protein A (DbpA) from Borrelia afzelii antibodies, typically produced by a living organism in response to Lyme disease infection, carried out in real-life negative and positive blood sera. It is shown that the addition of Cu NPs on top of silver NPs regularly boosts the plasmonic absorption caused by optical and electrical changes in the vicinity of the surface compared to silver NPs only. The Finite-difference time-domain (FDTD) simulations of near-field interaction in different environments propose suitable Cu-Ag coupling modes responsible for the modulation of the localized Surface Plasmon Resonance (LSPR) bands. Furthermore, the increased surface roughness, resulting from the architecture of combined nanoparticles of different metals, significantly enlarges the effective surface area for sensing applications, which consequentially leads to better species immobilization. The observed distinguishable differences between the negative and positive sera of LSPR response, and the high sensitivity and selectivity together with high stability of the nanocomposite (suppressed aging) opens a door for concepts of rapid, low-cost, sensitive LPSR-based biodetection platforms.
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
10608 - Biochemistry and molecular biology
Result continuities
Project
<a href="/en/project/GF21-05030K" target="_blank" >GF21-05030K: Semitransparent titania nanostructures on complex geometry surfaces for enhanced light harvesting and sensing</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Advanced Materials Interfaces
ISSN
2196-7350
e-ISSN
2196-7350
Volume of the periodical
12
Issue of the periodical within the volume
JUL
Country of publishing house
US - UNITED STATES
Number of pages
10
Pages from-to
13
UT code for WoS article
001392190900001
EID of the result in the Scopus database
2-s2.0-85214699376