Synthesis of antimicrobial siliceous materials by adding sunflowers ashes with silver and copper particles

ARRECHE, ROMINA A.; BELLOTTI, NATALIA; VÁZQUEZ, PATRICIA G.

Current Research in Green and Sustainable Chemistry

Elsevier

Año: 2021 vol. 4 p. 4 - 9

2666-0865

Microbial contamination of indoor environmental surfaces is a common source for infections. Therefore, bio-deterioration in buildings indoor materials is really important to avoid, due to the negative impact on humanhealth. Consequently, functionalized and sustainable materials are being intensively studied to control the mi-crobial colonization. Firstly, it was possible to obtain silica samples by the sol-gel method with the addition ofsunflower residues in the form of ashes together with silver or copper salt to produce antimicrobials solids.Secondly, the synthesized solids were characterized by different techniques. TEM analyses confirmed the suc-cessful inclusion of silver and copper nanoparticles into the silica framework mainly spherical in shape, and smallsize. Both silver and copper as antimicrobial agents reduce the potential for cross-contamination to occur, as it iseffective against a wide range of microorganisms, by the addition of ashes into the samples improved the anti-fungal activity of the solids against both fungal strains tested,Chaetomium globosumandAlternaria alternata.