期刊
ACS APPLIED NANO MATERIALS
卷 3, 期 3, 页码 2822-2829出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsanm.0c00126
关键词
CdS nanoparticles; MoS2 nanoflakes; graphene oxide; ochratoxin A; aflatoxin B-1; zearalenone; immunosensor
资金
- National Natural Scientific Foundation of China [21874048, 21705051]
- Key R&D Program of Guangdong Province [2019B020219003]
- Scientific Foundation of Guangdong Province [2017A030313077]
- National Key Research and Development Program of China [SQ2017YFC160089]
- Program for the Top Young Innovative Talents of Guangdong Province [2016TQ03N305]
- Foundation for High-level Talents in South China Agricultural University
Many kinds of mycotoxins can be found in cereals and feeds, thus increasing food safety requires effective and simultaneous detection of multitoxins. Herein, a flexible and three-dimensional (3D) film from CdS nanoparticles/MoS2 nanoflakes/reduced graphene oxide/carbon nanotubes (CMGC) nanocomposites was synthesized and pasted on various substrates including FTO, ITO, and glass carbon electrode (GCE) as the immunosensor substrate. By decorating the film electrode with different antigens, we built a modularity immuosensor using a ratiometric signal from photoelectrochemical (PEC) and cyclic voltammetric (CV) response, thus a universal standard curve was established to detect ochratoxin A (OTA), aflatoxin B-1 (AFB(1)) and zearalenone (ZEN). In addition, such a tape-pasted electrode was removable and renewable, which can be used to detect toxins in cereals with high sensitivity and accuracy. We believe that such a detection of OTA, AFB(1), and ZEN from modularity and ratiometry can offer alternative strategies of the immunosensor in multicomponent detection.
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