Silver nanoparticle incorporation into flexible polyamide 12 membranes

Author(s)

Martins de Souza, Maria Gabriela ; Batista, Jessica Potomatti ; de Faria, Emerson Henrique ; Ciuffi, Katia Jorge ; Rocha, Lucas Alonso ; Nassar, Eduardo Jose ; Lopes da Silva, Jorge Vicente ; Oliveira, Marcelo Fernandes ; Maia, Izaque Alves

• Document type: Journal article
• Source: Journal of Sol-Gel Science and Technology; v. 102, n. 1, p. 10-pg., 2022-01-20.

Abstract

To meet the demands of the market and society, the development of structured polymeric materials for application in the medical field is constantly increasing. Over the last decades, metallic silver nanoparticles have been explored due to their antimicrobial action. Here, we aimed to incorporate metallic silver nanoparticles into polymeric pieces obtained by additive manufacture via a chemical route involving silver nitrate and sodium borohydride. Polyamide 12 membranes were obtained by selective laser sintering, which was followed by washing, pretreatment, and functionalization with the alkoxides tetraethylorthosilicate and 3-aminopropyl tetraethoxysilane. For nanoparticle preparation and incorporation, a chemical route was tested under different conditions. The samples were characterized by techniques, such as X-ray diffraction, ultravioletvisible spectroscopy, and infrared vibrational spectroscopy. Nanoparticle formation and incorporation into the polyamide 12 membranes were demonstrated by the absorbance band at 420 nm, which indicated that the particles measured between 10 and 50 nm in size; by the X-ray diffraction peaks at 20 = 38, 44, and 64 degrees, which are typical of crystalline silver; and by vibrational spectroscopy, which evidenced that the nanoparticles interacted with the polyamide 12 nitrogen groups. Polyamide 12 membranes containing metallic silver nanoparticles have promising biomedical applications as antimicrobial wound dressings associated with drug carriers. [GRAPHICS] . (AU)

• FAPESP's process: 19/02641-0 - 6th Nano Today Conference
• Grantee: Eduardo José Nassar
• Support Opportunities: Research Grants - Meeting - Abroad
• FAPESP's process: 19/26439-5 - Nanoparticles containing lanthanide ions and obtained by the sol-gel methodology for multimodal application in Medicine
• Grantee: Eduardo José Nassar
• Support Opportunities: Regular Research Grants
• FAPESP's process: 15/20298-0 - Obtention of luminescent LaNbO4:Ln (ln = Dy, TM, er and Yb) matrices prepared by spray pyrolysis process
• Grantee: Lucas Alonso Rocha
• Support Opportunities: Regular Research Grants
• FAPESP's process: 19/20214-1 - Incorporation of silver nanoparticles and drugs into flexible polyamide 12 membranes
• Grantee: Maria Gabriela Martins de Souza
• Support Opportunities: Scholarships in Brazil - Scientific Initiation