RE-irradiation of silver nanoparticles obtained by laser ablation in water and assessment of their antibacterial effect
Autor/a
Fernández-Arias, Mónica
Boutinguiza Larosi, Mohamed
Del Val García, Jesús
Medina, Elisa
Rodríguez, Daniel
Riveiro, Antonio
Comesaña, Rafael
Gil Mur, Francisco Javier
Pou, Juan
Data de publicació
2018-12-20ISSN
0169-4332
Resum
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.
Tipus de document
Article
Versió del document
Versió acceptada
Llengua
Anglès
Matèries (CDU)
54 - Química
61 - Medicina
Paraules clau
Nanopartícules
Nanoparticles
Ablació amb làser
Laser ablation
Ablación con láser
Pàgines
22
Publicat per
Elsevier
Col·lecció
473;
Publicat a
Applied Surface Science
Citació
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
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- Ciències de la Salut [725]
Drets
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