Optimization of novel drug delivery system using natural rubber latex as matrix: use of the metronidazole as drug model - Herculano, Rondinelli D.; Guimarães, S. A. Catanzaro; Kinoshita, A.; Oliveira Junior, Osvaldo Novais de; Alencar, A. A. Queiroz; Graeff, C. F. O. (International Conference on Food and Agriculture Applications of Nanotechnologies - NanoAgri, 2010)