Issue 3, 2022

A nanocarrier pesticide delivery system with promising benefits in the case of dinotefuran: strikingly enhanced bioactivity and reduced pesticide residue

Abstract

There is a growing demand for reducing pesticide application to minimize their potential threats to food/environmental safety. Herein, a star polymer (SPc) with low production cost was synthesized using two reactions, and it could be applied as an efficient pesticide nanocarrier/adjuvant. SPc could be spontaneously conjugated with dinotefuran through hydrogen bonding and van der Waals forces with a pesticide loading content (PLC) of 17.41%. The complexation of dinotefuran with SPc reduced the dinotefuran size from 269.28 to 29.43 nm and significantly decreased the contact angle of pesticide droplets from 53.4 to 27.9 degrees on plant leaves. The plant uptake of SPc-delivered dinotefuran was increased by 1.45 and 1.53 times those of dinotefuran alone at 6 and 12 h after treatment. As envisioned, in the dose-dependent experiments, the corrected mortality of aphids treated with the dinotefuran/SPc complex was finally increased by 18.4% (100 mg L−1), 15.0% (50 mg L−1) and 10.7% (25 mg L−1) compared to dinotefuran alone. Interestingly, the residue of dinotefuran delivered by SPc was decreased to 1.21, 1.37 and 2.30 times 3, 5 and 7 d after the treatment, respectively. Meanwhile, the dinotefuran/SPc complex showed no negative effects on agronomic traits (fresh weight, plant height, and leaf length and width) of oilseed rape; however it had a slight synergistic effect on non-target lady beetles due to the enhancement of broad-spectrum bioactivity. SPc is a promising pesticide adjuvant to improve the bioactivity of synthetic pesticides and decrease the pesticide residue, showing great potential for green pest management.

Graphical abstract: A nanocarrier pesticide delivery system with promising benefits in the case of dinotefuran: strikingly enhanced bioactivity and reduced pesticide residue

Supplementary files

Article information

Article type
Paper
Submitted
17 aug 2021
Accepted
18 jan 2022
First published
19 jan 2022

Environ. Sci.: Nano, 2022,9, 988-999

A nanocarrier pesticide delivery system with promising benefits in the case of dinotefuran: strikingly enhanced bioactivity and reduced pesticide residue

Q. Jiang, Y. Xie, M. Peng, Z. Wang, T. Li, M. Yin, J. Shen and S. Yan, Environ. Sci.: Nano, 2022, 9, 988 DOI: 10.1039/D1EN00752A

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements