Nanohoop anchored plasmonic surfaces for polarity-dependent ultrasensitive sensing
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388963%3A_____%2F25%3A00637997" target="_blank" >RIV/61388963:_____/25:00637997 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1039/D5NR01767J" target="_blank" >https://doi.org/10.1039/D5NR01767J</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1039/d5nr01767j" target="_blank" >10.1039/d5nr01767j</a>
Alternative languages
Result language
angličtina
Original language name
Nanohoop anchored plasmonic surfaces for polarity-dependent ultrasensitive sensing
Original language description
The widespread presence of plasticizers in edible oils poses serious food safety concerns, necessitating the development of rapid, sensitive, and reliable analytical techniques for detecting trace-level contamination. Indeed, surface-enhanced Raman spectroscopy (SERS) offers high sensitivity, speed, and reproducibility without complex sample pretreatment for qualitative and quantitative analysis. Herein, we develop a superhydrophobic cyclic conjugated aromatic thiophene-triazole nanohoop (TTN) [4 + 4] as a high-performance substrate for SERS. The resulting TTN serves as a platform for anchoring plasmonic silver nanoparticles (denoted as TTN@AgNPs) and demonstrates exceptional detection and quantification of di-butyl phthalate (DBP) with a significant sensitivity reaching 20 ppb in edible vegetable oil. The superior performance of TTN@AgNP hybrids stems from their heterogeneous porous surface enriched with nitrogen and sulfur, which enhances the electron density, AgNP binding, and hot spot formation, while crucial interactions such as hydrogen bonding, van der Waals forces, and pi-pi stacking further facilitate DBP adsorption, enabling highly sensitive detection. Furthermore, density functional theory calculations elucidated the interaction mechanism between TTN@AgNPs and DBP, highlighting its selective detection. This work advances understanding of plasticizer contamination in edible oils and establishes a foundation for future research on identifying key contaminants and assessing variations across oils and packaging using SERS.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10403 - Physical chemistry
Result continuities
Project
—
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
Nanoscale
ISSN
2040-3364
e-ISSN
2040-3372
Volume of the periodical
17
Issue of the periodical within the volume
31
Country of publishing house
GB - UNITED KINGDOM
Number of pages
11
Pages from-to
18325-18335
UT code for WoS article
001534108100001
EID of the result in the Scopus database
2-s2.0-105012607218