Structure-properties correlation of acrylic resins modified with silver vanadate and graphene
Beatriz Danieletto Sahm, Izabela Ferreira, João Marcos Carvalho‐Silva, Ana Beatriz Vilela Teixeira, Jean Valdir Uchôa Teixeira, Paulo Noronha Lisboa‐Filho, Oswaldo Luiz Alves, Andréa Cândido dos Reis
Abstract
This study aimed to incorporate β-AgVO 3 and rGO into self-curing (SC) and heat-curing (HC) acrylic resins and to evaluate their physicochemical, mechanical, and antimicrobial properties while correlating them with the characterized material structure. Acrylic resin samples were prepared at 0% (control), 0.5%, 1%, and 3% for both nanoparticles. The microstructural characterization was assessed by scanning electron microscopy (SEM) (n=1) and energy dispersive X-ray spectroscopy (EDS) (n=1). The physicochemical and mechanical tests included flexural strength (n=10), Knoop hardness (n=10), roughness (n=10), wettability (n=10), sorption (n=10), solubility (n=10), porosity (n=10), and color evaluation (n=10). The microbiological evaluation was performed by counting colony-forming units (CFU/mL) and cell viability (n=8). The results showed that the β-AgVO 3 samples showed lower counts of Candida albicans , Pseudomonas aeruginosa , and Streptococcus mutans due to their promising physicochemical properties. The mechanical properties were maintained with the addition of β-AgVO 3 . The rGO samples showed higher counts of microorganisms due to the increase in physicochemical properties. It can be concluded that the incorporation of β-AgVO 3 into acrylic resins could be an alternative to improve the antimicrobial efficacy and performance of the material.