Preparation of silver iodide nanoparticles using laser ablation in liquid for antibacterial applications

• Published in: IET nanobiotechnology 2018-09, Vol.12 (6), p.781-786
• Main Authors: Ismail, Raid A, Sulaiman, Ghassan M, Mohsin, Mayyadah H, Saadoon, Ali H
• Format: Article
• Language: English
• Subjects: aggregation; AgI; AgI target; Anti-Bacterial Agents - chemical synthesis; Anti-Bacterial Agents - chemistry; antibacterial activities; antibacterial activity; deionised distilled water; energy dispersive X‐ray analysis; energy gap; Fourier transform infrared spectra; Iodides - chemical synthesis; Iodides - chemistry; Laser Therapy - methods; Metal Nanoparticles - chemistry; Microbial Sensitivity Tests; nanofabrication; nanoparticles; optical bandgap; optical constants; optical data; optical properties; Particle Size; Pseudomonas aeruginosa - drug effects; pulsed laser ablation; pulsed laser deposition; Research Article; scanning electron microscopy; SEM; Silver - chemistry; silver compounds; Silver Compounds - chemical synthesis; Silver Compounds - chemistry; silver iodide nanoparticles; Solutions; Staphylococcus aureus - drug effects; structural properties; synthesis process; temperature 293 K to 298 K; transmission electron microscope; transmission electron microscopy; ultraviolet spectra; UV–vis absorption; visible spectra; wavelength 434.0 nm; X‐ray chemical analysis; X‐ray diffraction
• ISSN: 1751-8741; 1751-875X; 1751-875X
• DOI: 10.1049/iet-nbt.2017.0231

In this study, the authors reported the first synthesis process of silver iodide (AgI) nanoparticles (NPs) by pulsed laser ablation of the AgI target in deionised distilled water. The optical and structural properties of AgI NPs were investigated by using UV–vis absorption, X-ray diffraction, scanning electron microscope (SEM), energy dispersive X-ray, Fourier transform infrared spectroscopy, and transmission electron microscope (TEM). The optical data showed the presence of plasmon peak at 434 nm and the optical bandgap was found to be 2.6 eV at room temperature. SEM results confirm the agglomeration and aggregation of synthesised AgI NPs. TEM investigation showed that AgI NPs have a spherical shape and the average particle size was around 20 nm. The particle size distribution was the Gaussian type. The results showed that the synthesised AgI NPs have antibacterial activities against both bacterial strains and the activities were more potent against gram-negative bacteria.