Sensitive Organophosphorus and Carbamate Pesticides Biosensor Based on  Acetylcholinesterase and CdZnSe/ZnS Ternary Alloy Quantum Dots

Nguyen Ngoc Hai; Nguyen Hai Yen; Duong Thi Giang; Nguyen Duc Nhat; Pham Thu Nga; Dao Tran Cao

doi:10.15625/0868-3166/24/3/3791

Sensitive Organophosphorus and Carbamate Pesticides Biosensor Based on Acetylcholinesterase and CdZnSe/ZnS Ternary Alloy Quantum Dots

Nguyen Ngoc Hai, Nguyen Hai Yen, Duong Thi Giang, Nguyen Duc Nhat, Pham Thu Nga, Dao Tran Cao

Author affiliations

Authors

Nguyen Ngoc Hai Institute of Materials Science, Vietnamese Academy of Science and Technology, No.18, Hoang Quoc Viet Road, Cau Giay Dist., Hanoi City, Vietnam
Nguyen Hai Yen Institute of Materials Science, Vietnamese Academy of Science and Technology
Duong Thi Giang Institute of Materials Science, Vietnamese Academy of Science and Technology
Nguyen Duc Nhat Institute of Materials Science, Vietnamese Academy of Science and Technology
Pham Thu Nga Institute of Materials Science, Vietnamese Academy of Science and Technology
Dao Tran Cao Institute of Materials Science, Vietnamese Academy of Science and Technology

DOI:

https://doi.org/10.15625/0868-3166/24/3/3791

Keywords:

pesticide, biosensors, ternary alloy quantum dots, photoluminescence

Abstract

This report presents the results of ternary alloy quantum dots (TQDs) manufacturing and its superior optical properties to fabricate the biosensor for pesticide detection. The explanation for the changes in PL intensity based on the change of electronic charges that alters the pH value of the surrounding environment, and the types of interaction on the surface of CdZnSe/ZnS TQDs were discussed. We show the decomposition process of the indicator (ATCh) with the catalysis from acetylcholinesterase enzyme (AChE) that inhibited by organophosphorus and carbamate pesticides including Trichlorfon (TF), Cypermethrin (CH), Abamectin (AT), and Carbosulfan (CS) with concentrations from 0.05 ppm to 10 ppm.

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Published

21-08-2014

How to Cite

[1]

N. N. Hai, N. H. Yen, D. T. Giang, N. D. Nhat, P. T. Nga and D. T. Cao, Sensitive Organophosphorus and Carbamate Pesticides Biosensor Based on Acetylcholinesterase and CdZnSe/ZnS Ternary Alloy Quantum Dots, Comm. Phys. 24 (2014) 225. DOI: https://doi.org/10.15625/0868-3166/24/3/3791.

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Issue

Vol. 24 No. 3 (2014)

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Papers

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