Preparation and Characterization of Silver Nanoparticles by Pulsed Laser Ablation and Investigation of their Effect on Bacteria

Abstract:

Synthesis of silver nanoparticles (AgNP) by pulsed liquid laser ablation (PLAL) produces AgNPs that are better suited for biological applications compared to those prepared by standard wet-chemical methods. These were mainly achieved by water ablation with pulse widths in the nanosecond range. In the case of surface NP activation, we previously detected a strong surface-enhanced Raman scattering (SERS) signal from such AgNPs. To do this, we dilute Colloid slightly with LiCl. These surface alterations may have an effect on the NPs' capability to combat bacteria. every time, AgNPs with a median diameter of under ten nm were created., that has been incontestible in alternative studies to be the optimum size for germicidal activity.. Furthermore, minimum restrictive concentration (MIC) values for LiCl-modified AgNPs fell inside a slender vary of 1.1-3.8 g/mL, creating them the foremost efficient. This result's believed to be explained by the metal surface's enhanced surface reactivity, which is brought on by the existence of charged active sites.

• Periodical: Materials Science Forum (Volume 1083)
• Pages: 33-38
• DOI: https://doi.org/10.4028/p-n9e5sj
• Online since: April 2023
• Authors: Zaid K. Alkaabi
• Keywords: Escherichia, Laser Ablation, Silver Nanoparticles (AgNPs), TEM, UV-Vis Absorption Spectra

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