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<p>Nanoparticles have emerged as powerful agents in combating harmful microorganisms. Among them, green synthesized copper nanoparticles derived from <i>Sargassum wightii</i>, a marine macroalgae renowned for its traditional applications in treating diabetes, inflammation, and skin conditions, show exceptional promise. Through UV–Vis spectroscopy, SEM, EDX spectroscopy, and FT-IR analysis, it was found that these nanoparticles have irregular shapes and a zeta potential of − 30.2&#xa0;mV, which means they are very stable when dispersed. The sizes of the particles range from 2.5 to 9&#xa0;nm. It is amazing how well these nanoparticles worked against urinary tract infection (UTI) pathogens. For example, they had inhibition zones of 18 ± 0.22&#xa0;mm for <i>Staphylococcus aureus</i> MRSA, 15 ± 0.12&#xa0;mm for <i>Streptococcus mutans</i>, and 13 ± 0.14&#xa0;mm for <i>Enterococcus faecalis</i>. The antioxidant effects were also very strong, ranging from 10 ± 2.3 to 56 ± 2.4% in the DPPH assay, 15.84 ± 1.9 to 62 ± 2.2% in the hydrogen peroxide radical inhibition assay, and 17.28 ± 2.6 to 56 ± 2.2% in the lipid peroxidation assay. They did all of this while doing very little damage to cells. These findings reveal the immense potential of eco-friendly and sustainable copper nanoparticles synthesized from <i>Sargassum wightii</i>. Their significant antimicrobial and antioxidant properties, coupled with their low toxicity, position them as promising candidates for developing innovative antimicrobial nanodrugs. This advancement not only holds the potential to revolutionize medical treatments but also contributes to environmentally sustainable scientific progress.</p>

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Antibacterial Efficacy Against Urinary Tract Infection (UTI) Pathogens and Free Radical Scavenging Potential of Marine Algae Sargassum wightii Mediated Copper Nanoparticles

  • 期刊论文

  • 发表日期：

    2025年5月26日

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  • Kamala Kannan,
  • Pitchiah Sivaperumal

摘要

Nanoparticles have emerged as powerful agents in combating harmful microorganisms. Among them, green synthesized copper nanoparticles derived from Sargassum wightii, a marine macroalgae renowned for its traditional applications in treating diabetes, inflammation, and skin conditions, show exceptional promise. Through UV–Vis spectroscopy, SEM, EDX spectroscopy, and FT-IR analysis, it was found that these nanoparticles have irregular shapes and a zeta potential of − 30.2 mV, which means they are very stable when dispersed. The sizes of the particles range from 2.5 to 9 nm. It is amazing how well these nanoparticles worked against urinary tract infection (UTI) pathogens. For example, they had inhibition zones of 18 ± 0.22 mm for Staphylococcus aureus MRSA, 15 ± 0.12 mm for Streptococcus mutans, and 13 ± 0.14 mm for Enterococcus faecalis. The antioxidant effects were also very strong, ranging from 10 ± 2.3 to 56 ± 2.4% in the DPPH assay, 15.84 ± 1.9 to 62 ± 2.2% in the hydrogen peroxide radical inhibition assay, and 17.28 ± 2.6 to 56 ± 2.2% in the lipid peroxidation assay. They did all of this while doing very little damage to cells. These findings reveal the immense potential of eco-friendly and sustainable copper nanoparticles synthesized from Sargassum wightii. Their significant antimicrobial and antioxidant properties, coupled with their low toxicity, position them as promising candidates for developing innovative antimicrobial nanodrugs. This advancement not only holds the potential to revolutionize medical treatments but also contributes to environmentally sustainable scientific progress.