Prepared Sandwich structure WS2/ag@MIP composite for ultrasensitive SERS detection of trace 17ß-estradiol in food.
Food Chem
; 460(Pt 3): 140731, 2024 Dec 01.
Article
de En
| MEDLINE
| ID: mdl-39106757
ABSTRACT
17ß-E2 is used in animal growth regulation and agricultural fertilizer, and even ng L-1 mass concentration levels can show biological effects. In this work, Ag NPs was used as surface-enhanced Raman spectroscopy (SERS) source and WS2 was synthesized by a simple method to provide a uniform distribution platform for Ag NPs. The MIP was the shell, which can selectively enrich the target molecule, pull the distance between the target molecule and SERS source, and protect Ag NPs. A cyclable SERS substrate with high sensitivity for detecting 17ß-E2 in food was constructed. The optimized WS2/Ag@MIP as SERS substrate has the advantages of high Enhanced Factor (EF = 2.78 × 109), low detection limit (LOD = 0. 0958 pM), strong anti-interference ability, and good recycling performance. Moreover, the detection of 17ß-E2 in real samples still has good accuracy. This work provides a new possibility for the trace detection of 17ß-E2 in food.
Mots clés
Texte intégral:
1
Collection:
01-internacional
Base de données:
MEDLINE
Sujet principal:
Argent
/
Analyse spectrale Raman
/
Contamination des aliments
/
Oestradiol
/
Nanoparticules métalliques
/
Limite de détection
Limites:
Animals
Langue:
En
Journal:
Food Chem
Année:
2024
Type de document:
Article
Pays de publication:
Royaume-Uni