Vol. 25 No. 1 (2015)
Papers

Mechanism to Detect Pesticide Residues in Tealeaves Based on CdZnSe/ZnS Ternary Alloy Quantum Dots

Nguyen Ngọc Hai
Institute of Materials Science, Vietnam Academy of Science and Technology
Nguyen Hai Yen
Institute of Materials Science, Vietnam Academy of Science and Technology
Duong Thi Giang
Institute of Materials Science, Vietnam Academy of Science and Technology
Dinh Hung Cuong
Institute of Materials Science, Vietnam Academy of Science and Technology
Nguyen Duc Nhat
Institute of Materials Science, Vietnam Academy of Science and Technology
Pham Thu Nga
Institute of Materials Science, Vietnam Academy of Science and Technology
Dao Tran Cao
Institute of Materials Science, Vietnam Academy of Science and Technology

Published 15-05-2015

How to Cite

Hai, N. N., Yen, N. H., Giang, D. T., Cuong, D. H., Nhat, N. D., Nga, P. T., & Cao, D. T. (2015). Mechanism to Detect Pesticide Residues in Tealeaves Based on CdZnSe/ZnS Ternary Alloy Quantum Dots. Communications in Physics, 25(1), 67. https://doi.org/10.15625/0868-3166/25/1/5601

Abstract

In this report, we present the optical properties of the biosensors fabricated from CdZnSe/ZnS quantum dots. The optical properties such as absorption and emission of the ternary quantum dots before and after coupling with the protein molecules like streptavidine (SA) and acetylcholinesterase enzymes (AChE), to form a biosensor structure, will be presented. In particular, the changes in luminescence intensity according to the pH value of the solution environment containing biosensor have been considered, before and after the presence of pesticides. The changes in luminescence intensity of the biosensor after the presence of pesticide over time from 2 seconds to 26 minutes were also surveyed. We have been carried out the tests to determine the trace amounts of commercial pesticides like Motox 5EC, containing 5% cypermethrin and Tungatin 10 EC, containing 10% abamectin, on the real samples of tealeaves. Some characteristics of the relationship between composition, structure, and special optical properties of ternary alloy quantum dots will also be presented. These studies open up the potential applications of  ternary quantum dots for agricultural production.

Downloads

Download data is not yet available.

Metrics

Metrics Loading ...

References

  1. R. Buiculescu, M. Hatzimarinaki, and N. A. Chaniotakis, Analytical and Bioanalytical Chemistry 398 (7-8) (2010)
  2. –3021.
  3. Y. P. Chen, B. Ning, N. Liu, Y. Feng, Z. Liu, X. Liu, and Z. X. Gao, Journal of Environmental Science and Health
  4. Part B 45 (6) (2010) 508–515.
  5. B.-M. Kim, A. Abd El-Aty, T.-E. Hwang, L.-T. Jin, Y.-S. Kim, and J.-H. Shim, Bulletin of the Korean Chemical
  6. Society 28 (6) (2007) 929–935.
  7. A. P. Periasamy, Y. Umasankar, and S.-M. Chen, Sensors 9 (6) (2009) 4034–4055.
  8. P. T. Nga, V. D. Chinh, P. T. Linh, K. C. Cuong, V. T. H. Hanh, N. X. Nghia, C. Barthou, and A. Maitre, Adv. Nat.
  9. Sci. 10 (2009) 167–174.
  10. P. Nga, V. Chinh, V. Hanh, N. Nghia, P. Dzung, C. Barthou, P. Benalloul, J. Laverdant, and A. Maitre, International
  11. Journal of Nanotechnology 8 (3) (2011) 347–359.
  12. A. Chen, D. Du, and Y. Lin, Environmental Science & Technology 46 (3) (2012) 1828–1833.
  13. Q. Chen and Y. Fung, Electrophoresis 31 (18) (2010) 3107–3114.
  14. Y. Chen, H. l. Ren, N. Liu, N. Sai, X. Liu, Z. Liu, Z. Gao, and B. a. Ning, Journal of Agricultural and Food
  15. Chemistry 58 (16) (2010) 8895–8903.
  16. G. Mercey, T. Verdelet, J. Renou, M. Kliachyna, R. Baati, F. Nachon, L. Jean, and P.-Y. Renard, Accounts of
  17. Chemical Research 45 (5) (2012) 756–766.
  18. N. N. Hai, V. D. Chinh, T. K. Chi, U. T. D. Thuy, N. X. Nghia, D. T. Cao, and P. T. Nga, Key Engineering Materials
  19. (2012) 314–318.
  20. N. N. Hai, V. D. Chinh, U. T. D. Thuy, T. K. Chi, N. H. Yen, D. T. Cao, N. Q. Liem, and P. T. Nga, International
  21. Journal of Nanotechnology 10 (3) (2013) 137–145.
  22. K. Paek, S. Chung, C.-H. Cho, and B. J. Kim, Chem. Commun. 47 (37) (2011) 10272–10274.
  23. N. H. Nguyen, T. G. Duong, V. N. Hoang, N. T. Pham, T. C. Dao, and T. N. Pham, Advances in Natural Sciences:
  24. Nanoscience and Nanotechnology 6 (1) (2015) 015015.