Title : Ti(3)C(2) MXene\/MoS(2)@AuNPs ternary nanocomposite for highly sensitive electrochemical detection of phoxim residues in fruits - Zhang_2024_Food.Chem_462_140939 |
Author(s) : Zhang J , Guo X , Xu Y , Chen L |
Ref : Food Chem , 462 :140939 , 2024 |
Abstract :
Phoxim, extensively utilized in agriculture as an organothiophosphate insecticide, has the potential to cause neurotoxicity and pose human health hazards. In this study, an electrochemical enzyme biosensor based on Ti(3)C(2) MXene/MoS(2)@AuNPs/AChE was constructed for the sensitive detection of phoxim. The two-dimensional multilayer structure of Ti(3)C(2) MXene provides a robust framework for MoS(2), leading to an expansion of the specific surface area and effectively preventing re-stacking of Ti(3)C(2) MXene. Additionally, the synergistic effect of self-reduced grown AuNPs with MoS(2) further improves the electrical conductivity of the composites, while the robust framework provides a favorable microenvironment for immobilization of enzyme molecules. Ti(3)C(2) MXene/MoS(2)@AuNPs electrochemical enzyme sensor showed a significant response to phoxim in the range of 1 x 10(-13) M to 1 x 10(-7) M with a detection limit of 5.29 x 10(-15) M. Moreover, the sensor demonstrated excellent repeatability, reproducibility, and stability, thereby showing its promising potential for real sample detection. |
PubMedSearch : Zhang_2024_Food.Chem_462_140939 |
PubMedID: 39208731 |
Zhang J, Guo X, Xu Y, Chen L (2024)
Ti(3)C(2) MXene\/MoS(2)@AuNPs ternary nanocomposite for highly sensitive electrochemical detection of phoxim residues in fruits
Food Chem
462 :140939
Zhang J, Guo X, Xu Y, Chen L (2024)
Food Chem
462 :140939