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<p>This study aims to present an environmentally friendly technology for producing aluminum-nickel alloy nanoparticles. The particles were produced at three different energies (300, 600, and 900&#xa0;mJ) using a pulsed Nd: YAG laser with a fundamental wavelength of 1064&#xa0;nm and a 9 ns pulse. Various techniques were used to characterize the resulting nanoparticles, including X-ray diffraction (XRD), field-effect scanning electron microscopy (FE-SEM), and atomic force microscopy (AFM). The structural characteristics showed a decrease in crystallite size. Morphological studies also showed a decrease in nanoparticle size and an increase in their regularity with increasing surface roughness and laser power. The optical study results also showed a clear increase in the absorbance value with increasing laser power. The particle stability test was performed using the zeta potential, which peaked at 900&#xa0;mJ and reached − 52.54 mV, indicating completely stable particles. Cyclic voltammetry (CV) and charge-impairment sensing (EIS) measurements of the produced nanoparticles at 900&#xa0;mJ showed excellent performance and significantly improved device sensitivity, with a significant increase in the interaction of glucose with the nanomaterial surface, with a peak current of ~ 28 µA and a high stabilization time of 5–7&#xa0;s. The biological activity of the produced nanoparticles was also tested at all energies against Escherichia coli and Staphylococcus aureus. The diameter of the inhibition zone for E. coli was 32&#xa0;mm at 900&#xa0;mJ, while it was 27&#xa0;mm against S. aureus.</p>

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Eco-Friendly Laser Ablation for Synthesis of Al-Ni Nanoparticles: Insights into Enhancing Glucose Biosensor Performance and Antibacterial Activity

  • 期刊论文

  • 发表日期：

    2025年11月15日

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  • Mohammed H. Jawad,
  • Mohammed R. Abdulameer

摘要

This study aims to present an environmentally friendly technology for producing aluminum-nickel alloy nanoparticles. The particles were produced at three different energies (300, 600, and 900 mJ) using a pulsed Nd: YAG laser with a fundamental wavelength of 1064 nm and a 9 ns pulse. Various techniques were used to characterize the resulting nanoparticles, including X-ray diffraction (XRD), field-effect scanning electron microscopy (FE-SEM), and atomic force microscopy (AFM). The structural characteristics showed a decrease in crystallite size. Morphological studies also showed a decrease in nanoparticle size and an increase in their regularity with increasing surface roughness and laser power. The optical study results also showed a clear increase in the absorbance value with increasing laser power. The particle stability test was performed using the zeta potential, which peaked at 900 mJ and reached − 52.54 mV, indicating completely stable particles. Cyclic voltammetry (CV) and charge-impairment sensing (EIS) measurements of the produced nanoparticles at 900 mJ showed excellent performance and significantly improved device sensitivity, with a significant increase in the interaction of glucose with the nanomaterial surface, with a peak current of ~ 28 µA and a high stabilization time of 5–7 s. The biological activity of the produced nanoparticles was also tested at all energies against Escherichia coli and Staphylococcus aureus. The diameter of the inhibition zone for E. coli was 32 mm at 900 mJ, while it was 27 mm against S. aureus.