Molecularly Imprinted Electrochemical Sensor Based on α-Cyclodextrin Inclusion Complex and MXene Modification for Highly Sensitive and Selective Detection of Alkylresorcinols in Whole Wheat Foods

Authenticating whole wheat foods poses a significant challenge for both the grain industry and consumers. Alkylresorcinols (ARs), serving as biomarkers of whole wheat, play a crucial role in assessing the authenticity of whole wheat foods. Herein, we introduce a novel molecularly imprinted electrochemical sensor with modifications involving a molecularly imprinted polymer (MIP) and MXene nanosheets, enabling highly sensitive and selective detection of ARs. Notably, we specifically chose 5-heneicosylresorcinol (AR21), the predominant homologue in whole wheat, as the template molecule. α-Cyclodextrin and acrylamide served as dual functional monomers, establishing a robust multiple interaction between the MIP and AR21. As a result, the sensor exhibited a wide linear range of 0.005 to 100 μg·mL-1 and a low detection limit of 2.52 ng·mL-1, demonstrating exceptional selectivity and stability. When applied to commercial whole wheat foods, the assay achieved satisfactory recoveries and accuracy, strongly validating the practicality and effectiveness of this analytical technique.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - year:2024

Enthalten in:

Journal of agricultural and food chemistry - (2024) vom: 25. Apr.

Sprache:

Englisch

Beteiligte Personen:

Wen, Yangyang [VerfasserIn]
Wang, Mengyao [VerfasserIn]
Gong, Weiwei [VerfasserIn]
Wang, Hailin [VerfasserIn]
Fan, Haoran [VerfasserIn]
Li, Hongyan [VerfasserIn]
Wang, Jing [VerfasserIn]
Sun, Baoguo [VerfasserIn]

Links:

Volltext

Themen:

Alkylresorcinols
Cyclodextrin inclusion complex
Electrochemical sensor
Journal Article
Molecularly imprinted polymer
Whole wheat foods

Anmerkungen:

Date Revised 25.04.2024

published: Print-Electronic

Citation Status Publisher

doi:

10.1021/acs.jafc.4c01458

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM371505283