Nanoparticles of alginate / chitosan as a carrier of imazapyr system and IMPAZAPIC...
| Full text | |
| Author(s): |
Pereira, Anderson E. S.
[1]
;
Grillo, Renato
[1]
;
Mello, Nathalie F. S.
[1]
;
Rosa, Andre H.
[2]
;
Fraceto, Leonardo F.
[2]
Total Authors: 5
|
| Affiliation: | [1] Univ Estadual Campinas, Dept Bioquim, BR-13083870 Campinas, SP - Brazil
[2] Univ Estadual Paulista, Dept Engn Ambiental, BR-18087180 Sorocaba, SP - Brazil
Total Affiliations: 2
|
| Document type: | Journal article |
| Source: | JOURNAL OF HAZARDOUS MATERIALS; v. 268, p. 207-215, MAR 15 2014. |
| Web of Science Citations: | 44 |
| Abstract | |
Nanoparticles of poly(epsilon-caprolactone) containing the herbicide atrazine were prepared, characterized, and evaluated in terms of their herbicidal activity and genotoxicity. The stability of the nanoparticles was evaluated over a period of three months, considering the variables: size, polydispersion index, pH, and encapsulation efficiency. Tests on plants were performed with target (Brassica sp.) and non-target (Zea mays) organisms, and the nanoparticle formulations were shown to be effective for the control of the target species. Experiments using soil columns revealed that the use of nanoparticles reduced the mobility of atrazine in the soil. Application of the Allium cepa chromosome aberration assay demonstrated that the nanoparticle systems were able to reduce the genotoxicity of the herbicide. The formulations developed offer a useful means of controlling agricultural weeds, while at the same time reducing the risk of harm to the environment and human health. (C) 2014 Elsevier B.V. All rights reserved. (AU) | |
| FAPESP's process: | 09/00294-9 - Micro/nanostructured release systems for triazinic herbicides for agricultural application |
| Grantee: | Leonardo Fernandes Fraceto |
| Support type: | Research Grants - Young Investigators Grants |