Journal of Materials Science and Engineering with Advanced TechnologyAuthor's: C. Araujo-Rufino, J. Fernandes-Vieira, P. MartÃn-Ramos, I. Silva-Castro, M. Fernandes-Côrrea, P. M. Matei, M. Sánchez-Báscones, M. C. Ramos-Sánchez and J. MartÃn-Gil
Pages: [29] - [52]
Received Date: November 16, 2015
Submitted by:
DOI: http://dx.doi.org/10.18642/jmseat_7100121578
The synthesis of composite systems of oligomeric chitosan with propolis extract which allow the incorporation of a third component (silver nanoparticles) is reported, together with their application in aqueous solutions with a view to the formation of adhesive substances or nanofilms for the protection of agricultural crops. The antimicrobial properties resulting from the association of the two biological products or from the incorporation of silver nanoparticles have been studied in vitro for rice seeds inoculated with harmful Bipolaris oryzae fungus, proposing the field application of the novel composites as biofungicides to control the brown spot disease. Several synthesis-structure-activity models have been proposed to justify the synergies and to design new polymeric materials which may represent an eco-friendly alternative to traditional chemical fungicides due to their solubility, safety and effectiveness.
Bipolaris oryzae, chitosan, fungicide, propolis, silver nanoparticles.
