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<p>This study investigates the synthesis and characterization of silver oxide nanoparticles (AgO NPs) using the Nd:YAG pulsed laser ablation technique. The research objective was to develop a colloidal solution of AgO NPs and evaluate their optical and structural properties at various energy levels. Using an Nd: YAG laser, a colloidal solution of AgO NPs was prepared by ablating a high-purity silver plate immersed in distilled water. This process involved varying laser energies (500, 700, and 900&#xa0;mJ) to examine how laser parameters impact the characteristics of the resulting nanoparticles. The synthesized nanoparticles were characterized using UV–visible, XRD, FE-SEM, AFM, and Zeta Potential analyses. The findings indicated that the optical properties and particle size of AgO NPs are influenced by laser energy, showing a decrease in energy gap and particle size with increased laser power. XRD analysis confirmed a polycrystalline structure, while AFM and FE-SEM images demonstrated reduced agglomeration at higher energies. Additionally, zeta potential analysis indicated that higher laser energies improved nanoparticle stability, with negative zeta values confirming particle repulsion, which is essential for stability in biological applications. In conclusion, the study demonstrated that AgO NPs exhibit desirable physical and chemical properties when synthesized at higher laser energies. These properties make AgO NPs promising candidates for biomedical applications, particularly as potential antitumor agents.</p>

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Study of optical and structural characterization of silver oxide nanoparticles prepared by pulse laser ablation

  • 期刊论文

  • 发表日期：

    2025年4月15日

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  • Rasha W. Kolaib,
  • Yasmin M. Radzi,
  • Kadhim A. Aadim,
  • Naser M. Ahamed,
  • Mohammed D. Salman

摘要

This study investigates the synthesis and characterization of silver oxide nanoparticles (AgO NPs) using the Nd:YAG pulsed laser ablation technique. The research objective was to develop a colloidal solution of AgO NPs and evaluate their optical and structural properties at various energy levels. Using an Nd: YAG laser, a colloidal solution of AgO NPs was prepared by ablating a high-purity silver plate immersed in distilled water. This process involved varying laser energies (500, 700, and 900 mJ) to examine how laser parameters impact the characteristics of the resulting nanoparticles. The synthesized nanoparticles were characterized using UV–visible, XRD, FE-SEM, AFM, and Zeta Potential analyses. The findings indicated that the optical properties and particle size of AgO NPs are influenced by laser energy, showing a decrease in energy gap and particle size with increased laser power. XRD analysis confirmed a polycrystalline structure, while AFM and FE-SEM images demonstrated reduced agglomeration at higher energies. Additionally, zeta potential analysis indicated that higher laser energies improved nanoparticle stability, with negative zeta values confirming particle repulsion, which is essential for stability in biological applications. In conclusion, the study demonstrated that AgO NPs exhibit desirable physical and chemical properties when synthesized at higher laser energies. These properties make AgO NPs promising candidates for biomedical applications, particularly as potential antitumor agents.