@ARTICLE{Pad_Sil_2021,
author = "Padilla Sierra, H A - Peña Rodríguez, G - Chaves Bedoya, Giovanni",
title = "Silver colloidal nanoparticles by electrochemistry: temporal evaluation and surface plasmon resonance",
abstract = "The electrochemical technique for obtaining silver nanoparticles has advantages over
other methods. For the synthesis, a colloidal silver generator (Colloidal Silver Generator® model
1001) was used, where two electrodes coupled to high purity silver rods (99.99%) were used,
with a potential difference of 24 V. Nanoparticle concentration was measured by total dissolved
solids, using the SI-Analytic HandyLab 680 FK multiparameter in 200 mL of Milli-Q deionized
water, reporting 18 ppm at 1 hour at room temperature. The determination of the resonance
wavelength of the surface plasmons was carried out by finding the maximum absorbance by UVVisible spectrophotometry with λ = 423 nm. The morphology and size of the nanoparticles was
determined by Transmission Electron Microscopy, observing spherical morphology and sizes
smaller than 50 nm. The chemical composition was determined by X-ray energy dispersed
spectroscopy, finding a weight concentration of 93.22% of silver. The results show an optimal
synthesis of colloidal silver, with characteristics that will allow the inhibition of microorganisms
of interest.",
year = 2021,
url = "https://repositorio.ufps.edu.co/handle/ufps/6589",
}