Biocomposite Films Intended for Agriculture Application Based on Polysaccharide/Guinoa Saponin/Ag Nanoparticles

Authors

  • Aleksandra Nesic University of Belgrade, Vinca Institute of Nuclear Sciences - National Institute of the Republic of Serbia, Belgrade, Serbia https://orcid.org/0000-0001-7971-7589
  • Rodrigo Segura Instituto de Química y Bioquímica, Facultad de Ciencias, Universidad de Valparaíso, Chile https://orcid.org/0000-0003-0928-0021
  • Sergio Benavides Facultad de Ciencias para el Cuidado de la Salud, Universidad San Sebastián, Campus Las Tres Pascualas, Concepción, Chile
  • Gustavo Cabrera-Barjas Facultad de Ciencias para el Cuidado de la Salud, Universidad San Sebastián, Campus Las Tres Pascualas, Concepción, Chile https://orcid.org/0000-0002-1850-0244

DOI:

https://doi.org/10.30544/MMD34

Abstract

This study aims to develop novel alginate-based composite films intended for agricultural practices. The films were prepared by the solution casting method using alginate, hydroxyethyl cellulose, and saponin-silver nanoparticles. The film formation was supported by hydrogen bonds formed between the components, as evidenced by FTIR/ATR analysis. The addition of hydroxyethyl cellulose decreased the tensile strength and Young’s modulus of alginate films, and this trend was further promoted with the addition of saponin-silver nanoparticles. However, the composite film still possessed a satisfactory mechanical resistance of 31 MPa, which is higher than that of commercial synthetic agricultural films. In addition, all composite films were not phytotoxic, demonstrated a high positive effect on the germination of radish seeds (131%), and acted as plant growth promoters. The obtained results showed that the combination of both polysaccharides with saponin-silver nanoparticles resulted in interesting bio-inspired films with the potential to replace commercially used synthetic agricultural films.

Keywords:

alginate; hydroxyethyl cellulose; silver ions; composite films; agriculture
Supporting Agencies
This work was supported by the Ministry of Education, Science and Technological Development of the Republic of Serbia (Contract No. 451-03-66/2024-03/ 200017), and ANID project Fondecyt Regular 1221609 (G.C-B).

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Published

02-12-2024

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Section

Polymer composite materials: mechanics and applications