J 2024

Effects of three tebuconazole nanopesticides on the survival of Daphnia magna

EGHBALINEJAD, Mahleh, María del Rocío LÓPEZ CABEZA, Jan KOTOUČEK, Renato GRILLO, Marek KOUTNÝ et. al.

Basic information

Original name

Effects of three tebuconazole nanopesticides on the survival of Daphnia magna

Authors

EGHBALINEJAD, Mahleh (364 Islamic Republic of Iran, belonging to the institution), María del Rocío LÓPEZ CABEZA (724 Spain, belonging to the institution), Jan KOTOUČEK, Renato GRILLO, Marek KOUTNÝ, Zuzana BÍLKOVÁ (203 Czech Republic, belonging to the institution) and Jakub HOFMAN (203 Czech Republic, belonging to the institution)
Renato Grillo, Marek Koutný, Zuzana Bílková, Jakub Hofman.

Edition

Environmental Science: Nano, ENGLAND, Royal Society of Chemistry, 2024, 2051-8153

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10511 Environmental sciences

Country of publisher

United Kingdom of Great Britain and Northern Ireland

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 7.300 in 2022

Organization unit

Faculty of Science

UT WoS

001135753800001

Keywords in English

ENVIRONMENTAL RISK ASSESSMENTS; ACUTE TOXICITY; NANOPARTICLES; ATRAZINE; GENOTOXICITY; CYHALOTHRIN; PESTICIDES; HERBICIDE; STABILITY; EXPOSURE

Tags

Tags

International impact, Reviewed
Změněno: 19/3/2024 13:44, Mgr. Marie Šípková, DiS.

Abstract

V originále

The growing pressure to reduce excessive pesticide use has led to exploring novel formulation methods, including nanoparticle carriers for active substances. However, these emerging nanopesticides need a thorough evaluation compared to current formulations to determine whether their “nano” properties intensify toxicity for non-target organisms. This study assessed the lethal toxicity of three nanopesticides on Daphnia magna. The nanopesticides tested were tebuconazole loaded onto poly-ε-caprolactone, nanostructured lipid carriers, and poly(3-hydroxybutyrate) nanoparticles. Additionally, the study evaluated the toxicity of nanocarriers without loaded tebuconazole, a commercial tebuconazole formulation, and tebuconazole (pure). Effects were studied across a series of dilutions to examine the impacts on tebuconazole chemistry (total and free concentrations) and particle physics (size, heterogeneity, and density). D. magna exhibited varied responses to polymeric and lipid nanoformulations of tebuconazole and unloaded nanocarriers. The observed toxicity levels, from highest to lowest, were as follows: pure tebuconazole > tebuconazole-loaded on nanostructured lipid carriers > commercial tebuconazole > tebuconazole-loaded on poly(3-hydroxybutyrate) nanoparticles > tebuconazole-loaded on poly-ε-caprolactone. The mechanisms underlying the observed toxicity can generally be attributed to chemical factors (tebuconazole's free concentration and particle composition) and physical aspects (particle size and concentration). The study also revealed that dilution series can influence particle size and homogeneity, affecting the loaded substance's chemistry. This implies that the toxicity testing of nanopesticides is complex and not as straightforward as traditional dose–response modeling. Research like this is crucial to understanding the ecological impacts of nanopesticides, ensuring that new nanoformulations are beneficial rather than detrimental for plant protection.

Links

EF17_043/0009632, research and development project
Name: CETOCOEN Excellence
GA18-19324S, research and development project
Name: Nanopesticidy v životním prostředí – porozumění jejich osudu, biodostupnosti, účinkům a rizikům v půdě a vodě
Investor: Czech Science Foundation
LM2023069, research and development project
Name: Výzkumná infrastruktura RECETOX
Investor: Ministry of Education, Youth and Sports of the CR, RECETOX research infrastructure