RE-irradiation of silver nanoparticles obtained by laser ablation in water and assessment of their antibacterial effect
Author
Fernández-Arias, Mónica
Boutinguiza Larosi, Mohamed
Del Val García, Jesús
Medina, Elisa
Rodríguez, Daniel
Riveiro, Antonio
Comesaña, Rafael
Gil Mur, Francisco Javier
Pou, Juan
Publication date
2018-12-20ISSN
0169-4332
Abstract
The rapid evolution of resistant bacteria is a huge problem in medicine because makes the treatment of infections more and more difficult. The bactericidal properties of noble metal nanoparticles could be a solution.
In this work silver nanoparticles were produced by using two nanosecond Nd:YVO4 lasers operating at 1064 and 532 nm respectively to ablate a silver target submerged in pure de-ionized water. Part of the resulting colloidal solution was injected as a fine stream by a compressed air system and re-irradiated one and three times with the same laser to resize and get uniform nanoparticles.
The obtained nanoparticles by ablation and re-irradiation consisted of crystalline Ag nanoparticles with a bimodal size distribution. The particle size has been reduced by subsequent laser re-irradiation with both laser sources, reaching a 40% of mean size reduction. Inhibitory effects on the proliferation of Staphylococcus aureus was demonstrated on silver nanoparticles obtained after re-irradiation with the infrared laser.
Document Type
Article
Document version
Accepted version
Language
English
Subject (CDU)
54 - Chemistry. Crystallography. Mineralogy
61 - Medical sciences
Keywords
Nanopartícules
Nanoparticles
Ablació amb làser
Laser ablation
Ablación con láser
Pages
22
Publisher
Elsevier
Collection
473;
Is part of
Applied Surface Science
Citation
Fernández-Arias, Mónica; Boutinguiza Larosi, Mohamed; del Val García, Jesús; Medina, Elisa; Rodríguez, Daniel; Riveiro, Antonio; Comesaña, Rafael; Gil Mur, Francesc Xavier; Pou, Juan. «RE-irradiation of silver nanoparticles obtained by laser ablation in water and assessment of their antibacterial effect». Applied Surface Science, 2018, vol. 473, p. 548-554. https://doi.org/10.1016/j.apsusc.2018.12.182
This item appears in the following Collection(s)
- Ciències de la Salut [740]
Rights
http://creativecommons.org/licenses/by-nc-nd/4.0/
Except where otherwise noted, this item's license is described as http://creativecommons.org/licenses/by-nc-nd/4.0/