Química Nova (Jan 2010)

Nanopartículas de alginato como sistema de liberação para o herbicida clomazone

  • Mariana dos Santos Silva,
  • Daniela Sgarbi Cocenza,
  • Nathalie Ferreira Silva de Melo,
  • Renato Grillo,
  • André Henrique Rosa,
  • Leonardo Fernandes Fraceto

DOI
https://doi.org/10.1590/s0100-40422010000900009
Journal volume & issue
Vol. 33, no. 9
pp. 1868 – 1873

Abstract

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In this paper, we describe the preparation of alginate nanoparticles as a delivery system for the herbicide clomazone. Two different methods were investigated and characterized by size distribution, zeta potencial, pH and in vitro release. The alginate/AOT nanoparticles had higher rates of association of the herbicide clomazone than alginate/chitosan nanoparticles. Clomazone release profile, showed a significant difference in release behavior of pure herbicide in solution when compared with herbicide loaded in both alginate nanoparticles. This study is important to construct a biodegradable release system using herbicide for later release into more specific targets, avoiding contamination of environmental matrices.

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