RT Journal Article
T1 RE-irradiation of silver nanoparticles obtained by laser ablation in water and assessment of their antibacterial effect
A1 Fernández Arias, Mónica
A1 Boutinguiza Larosi, Mohamed
A1 Del Val Garcia, Jesús
A1 Medina, E
A1 Muñoz Rodríguez, Daniel
A1 Riveiro Rodríguez, Antonio
A1 Comesaña Piñeiro, Rafael
A1 Lusquiños Rodríguez, Fernando
A1 Gil, F. J
A1 Pou Saracho, Juan María
K1 3328 Procesos Tecnológicos
AB 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:YVO 4 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.
PB Applied Surface Science
SN 01694332
YR 2019
FD 2019-04-15
LK http://hdl.handle.net/11093/6253
UL http://hdl.handle.net/11093/6253
LA eng
NO Applied Surface Science, 473, 548-554 (2019)
NO Xunta de Galicia | Ref. ED481D 2017/010
DS Investigo
RD 11-dic-2024