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3D-printed polymer-infiltrated ceramic network with antibacterial biobased silver nanoparticles

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10.1021/acsabm.2c00509
 
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Hodásová, L'udmilaMés informacióMés informació
Morena Gatius, Ángela GalaMés informacióMés informació
Tzanov, TzankoMés informacióMés informacióMés informació
Fargas Ribas, GemmaMés informacióMés informacióMés informació
Llanes Pitarch, Luis MiguelMés informacióMés informacióMés informació
Alemán Llansó, CarlosMés informacióMés informacióMés informació
Armelín Diggroc, Elaine AparecidaMés informacióMés informacióMés informació
Document typeArticle
Defense date2022-01-01
PublisherAmerican Chemical Society
Rights accessRestricted access - publisher's policy (embargoed until 2023-09-27)
Attribution-NonCommercial-NoDerivs 4.0 International
Except where otherwise noted, content on this work is licensed under a Creative Commons license : Attribution-NonCommercial-NoDerivs 4.0 International
Abstract
This work aimed at the antimicrobial functionalization of 3D-printed polymer-infiltrated biomimetic ceramic networks (PICN). The antimicrobial properties of the polymer-ceramic composites were achieved by coating them with human- and environmentally safe silver nanoparticles trapped in a phenolated lignin matrix (Ag@PL NPs). Lignin was enzymatically phenolated and used as a biobased reducing agent to obtain stable Ag@PL NPs, which were then formulated in a silane (¿-MPS) solution and deposited to the PICN surface. The presence of the NPs and their proper attachment to the surface were analyzed with spectroscopic methods (FTIR and Raman) and X-ray photoelectron spectroscopy (XPS). Homogeneous distribution of 13.4 ± 3.2 nm NPs was observed in the transmission electron microscopy (TEM) images. The functionalized samples were tested against Gram-positive (Staphylococcus aureus) and Gram-negative (Pseudomonas aeruginosa) bacteria, validating their antimicrobial efficiency in 24 h. The bacterial reduction of S. aureus was 90% in comparison with the pristine surface of PICN. To confirm that the Ag-functionalized PICN scaffold is a safe material to be used in the biomedical field, its biocompatibility was demonstrated with human fibroblast (BJ-5ta) and keratinocyte (HaCaT) cells, which was higher than 80% in both cell lines.
CitationHodasova, L. [et al.]. 3D-printed polymer-infiltrated ceramic network with antibacterial biobased silver nanoparticles. "ACS Applied Bio Materials", 1 Gener 2022, vol. 5, núm. 10, p. 4803-4813. 
URIhttp://hdl.handle.net/2117/376304
DOI10.1021/acsabm.2c00509
ISSN2576-6422
Publisher versionhttps://pubs.acs.org/doi/10.1021/acsabm.2c00509
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  • Departament d'Enginyeria Química - Articles de revista [1.988]
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