Off–on sensor based on concentration-dependent multicolor fluorescent carbon dots for detecting pesticides
Type de document
journalArticle
Langue source
-- Langue source --
Titre
Off–on sensor based on concentration-dependent multicolor fluorescent carbon dots for detecting pesticides
Titre français
Titre anglais
Auteur(s)
- ALVANDI Nikta
- ASSARIHA Sara
- ESFANDIARI Neda
- JAFARI Reza
Editeur(s)
Autre(s)
Id
6YBZGMQ6
Version
3341
Date ajout
19 avril 2021 10:58
Date modification
19 avril 2021 10:58
Résumé
Nanosensors have received much focus because of their sensitive, simple, and cost-effective nature. This paper presents an environmentally benign and facile method for synthesizing concentration-dependent multicolor fluorescent carbon dots using greengage plums and a single-step hydrothermal method. We use these carbon dots to detect three common pesticides in prepared samples. We confirm the nature of the prepared carbon dots through Fourier transform infrared spectroscopy, atomic force microscopy, dynamic light scattering, zeta potential, X-ray powder diffraction, elemental analysis, and transmission electron microscopy. We report, for the first time, that synthesized carbon dots can detect the pesticides confidor, dialen super, and duplosan. The prepared nanosensor does not identify the pesticides bromoxynil, diazinon, glyphosate, malathion and deltamethrin, confirming its detection specificity. This novel nanosensor has a high specificity and a detection limit of approximately 10−8 ppm. We also investigate the static quenching and selectivity of this nanosensor. The primary advantages of the prepared nanosensor are its rapid selectivity and ultra-low detection limit.
Note
None
CRAW tags
- AB - Transversal
- FREDO alimentation animale
- FREDO authentification
- FREDO qualité des produits
- FREDO technologie et innovation
- GEO Global
- pesticide
WEB tags
- multicolor fluorescent carbon dots
- nanosensors
- pesticides
- static quenching mechanism
- ultra-low detection limits
Titre de la publication
Nano-Structures & Nano-Objects
Volume
26
Pages
100706
Date caractères
April 1, 2021
Date publication
1 avril 2021
Doi
10.1016/j.nanoso.2021.100706
Le DOI est une URL unique de référencement d'une publication.
Il est donc plus fiable et permanent qu'une URL classique
Issn
2352-507X
L’ISSN est un code de 8 chiffres servant à identifier
les journaux, revues, magazines, périodiques de toute nature et
sur tous supports, papier comme électronique.