Nanohoop anchored plasmonic surfaces for polarity-dependent ultrasensitive sensing

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

Nanohoop anchored plasmonic surfaces for polarity-dependent ultrasensitive sensing

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

Nanohoop anchored plasmonic surfaces for polarity-dependent ultrasensitive sensing

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10403 - Physical chemistry

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Nanoscale

ISSN

2040-3364

e-ISSN

2040-3372

Svazek periodika

17

Číslo periodika v rámci svazku

31

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

11

Strana od-do

18325-18335

Kód UT WoS článku

001534108100001

EID výsledku v databázi Scopus

2-s2.0-105012607218