Palladium nanoparticles synthesized by laser ablation in liquids for antimicrobial applications
Author
Fernández Arias, Mónica
Vilas, Ana M.
Boutinguiza Larosi, Mohamed
Rodriguez, Daniel
Arias-González, Felipe
Pou Álvarez, Pablo
Riveiro Rodriguez, Antonio
Pou, Juan
Publication date
2022ISSN
2079-4991
Abstract
Antibiotic resistance is a leading cause of death worldwide. In this paper, we explore new alternatives in the treatment of infections. Noble metal nanoparticles could help to mitigate this problem. In this work, palladium nanoparticles were synthesized by laser ablation in order to explore their antimicrobial capacity. To obtain palladium nanoparticles, a palladium plate immersed in water, or methanol, was ablated, using two pulsed lasers that emit radiation with wavelengths of 532 nm and 1064 nm, respectively. Pure Pd-NPs with crystalline microstructure and rounded shape were obtained. The nanoparticles’ size is more homogeneous if the laser wavelength is 532 nm, and it decreases when methanol is used as solvent, reaching mean diameters smaller than 6 nm. With the objective of studying antimicrobial activity against Staphylococcus aureus, the Pd-NPs were immobilized on the surface of titanium discs. The release of palladium ions was recorded during the first seven days, and the cytotoxicity of the immobilized NPs was also tested with L929 mouse fibroblast cell line. Palladium nanoparticles synthesized by means of the infrared laser in methanol showed a strong inhibitory effect on S. aureus and good cytocompatibility, with no toxic effect on fibroblast cells.
Document Type
Article
Document version
Published version
Language
English
Subject (CDU)
616.3 - Pathology of the digestive system. Complaints of the alimentary canal
Keywords
Nanopartícules de pal·ladi
Ablació làser
Caracterització fisicoquímica
Bactericida activitat
Citocompatibilitat
Nanopartículas de paladio
Ablación laser
Caracterización fisicoquímica
Bactericida actividad
Citocompatibilidad
Palladium nanoparticles
Laser ablation
Physicochemical characterization
Bactericidal activity
Cytocompatibility
Pages
18
Publisher
MDPI
Is part of
Nanomaterials
Citation
Fernández Arias, Mónica; Vilas, Ana M.; Boutinguiza Larosi, Mohamed [et al.]. Palladium nanoparticles synthesized by laser ablation in liquids for antimicrobial applications. Nanomaterials, 2022, 12(15), 2621. Disponible en: <https://www.mdpi.com/2079-4991/12/15/2621>. Fecha de acceso: 3 nov. 2022. DOI: 10.3390/nano12152621
Link to the related item
This item appears in the following Collection(s)
- Odontologia [245]
Rights
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Except where otherwise noted, this item's license is described as https://creativecommons.org/licenses/by/4.0/