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<p>Zinc–aluminum alloy nanoparticles were prepared using cold plasma technology, an economical, environmentally friendly technique that does not require chemicals. The nanoparticles were prepared at three different exposure times (10, 10, and 15&#xa0;min). Several methods were used for characterization, including X-ray diffraction, field-emission scanning electron microscopy, and atomic force microscopy. The results showed that increasing exposure time effectively improved the distribution and shape of the resulting particles, increasing their regularity. The nanoparticle sizes reached 57, 36, and 32&#xa0;nm, respectively. Regarding bacterial activity in these samples, the results showed that particles produced at 15&#xa0;min had the highest bacterial killing rate, with the inhibition zone diameter for E. coli increasing from 18 ± 0.7192&#xa0;mm in the 5-minute sample to 31 ± 0.6984&#xa0;mm in the 15 min sample. As with Staphylococcus aureus, the particles produced at 15&#xa0;min showed better results, with an inhibition zone of 30 ± 0.7301&#xa0;mm. In the field of glucose sensing, particles prepared for 15&#xa0;min were used to fabricate a non-enzymatic sensor that showed a rapid response within approximately 60&#xa0;s and a significant improvement in its electrical properties. Based on these results, atmospheric plasma technology demonstrates its effectiveness in preparing nanoparticles with ideal properties for medical and environmental applications, including enhanced glucose sensing performance and antibacterial activity.</p>

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Synthesis and Characterization of Zn–Al Alloy Nanoparticles using Atmospheric Plasma Jet and their Applications in Glucose Biosensing and Antibacterial Activity

  • 期刊论文

  • 发表日期：

    2026年2月17日

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  • Mohammed H. Jawad,
  • Mohammed R. Abdulameer

摘要

Zinc–aluminum alloy nanoparticles were prepared using cold plasma technology, an economical, environmentally friendly technique that does not require chemicals. The nanoparticles were prepared at three different exposure times (10, 10, and 15 min). Several methods were used for characterization, including X-ray diffraction, field-emission scanning electron microscopy, and atomic force microscopy. The results showed that increasing exposure time effectively improved the distribution and shape of the resulting particles, increasing their regularity. The nanoparticle sizes reached 57, 36, and 32 nm, respectively. Regarding bacterial activity in these samples, the results showed that particles produced at 15 min had the highest bacterial killing rate, with the inhibition zone diameter for E. coli increasing from 18 ± 0.7192 mm in the 5-minute sample to 31 ± 0.6984 mm in the 15 min sample. As with Staphylococcus aureus, the particles produced at 15 min showed better results, with an inhibition zone of 30 ± 0.7301 mm. In the field of glucose sensing, particles prepared for 15 min were used to fabricate a non-enzymatic sensor that showed a rapid response within approximately 60 s and a significant improvement in its electrical properties. Based on these results, atmospheric plasma technology demonstrates its effectiveness in preparing nanoparticles with ideal properties for medical and environmental applications, including enhanced glucose sensing performance and antibacterial activity.