Study of the Effect of Laser Energy on the Biological Applications of Selenium Dioxide Nanoparticles Prepared by the Pulsed Laser Ablation Method

Abstract:

The effect of laser energy number of pulses on the compositional, morphological, topographic, and optical properties of selenium oxide nanoparticles SeO2 nanoparticles prepared by pulsed laser ablation of selenium in a target liquid immersed in water with Nd:YAG laser pulses with energy 400 mJ was investigated using a different number of laser pulses 250 and 300. X-ray diffraction (XRD) tests revealed that the SeO2 nanoparticles exhibited a hexagonal crystal structure. Scanning electron microscope (SEM) tests revealed that the form and size of the produced SeO2 NPs are dependent on the number of laser pulses. The dispersion of nanoparticles was proportional to the increase in laser energy generated by the number of pulses. AFM investigations revealed extremely distributed ball-shaped SeO2 particles. The optical energy gap of SeO2 nanoparticles generated was evaluated using optical characteristics and found to be 3.37 to 4.3 eV for SeO2 induced by 250 and 300 pulses, respectively. The biological effectiveness results revealed that employing laser energy with a pulse number of 300P resulted in the greatest inhibition.

• Periodical: Engineering Headway (Volume 30)
• Pages: 11-20
• DOI: https://doi.org/10.4028/p-1lRUUW
• Online since: January 2026
• Authors: Mahmood A. Yaseen*, Abduallah M. Ali, Ahmed N. Abd
• Keywords: Anti-Bacterial Activity, Pulsed Laser, Scanning Electron Microscopy (SEM), Selenium Oxide Nanoparticles, X-Ray Diffraction

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