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<p>Green nanotechnology offers environmentally friendly, multi-functional solutions for microbial water disinfection and biomedical applications, pertinent to the One Health approach. In the current research, <i>Shorea robusta</i> flowers were used as a natural reducing and capping agent for the biosynthesis of zinc oxide nanoparticles (Sr-ZnONPs). The formation of stable spherical nanoparticles was evidenced by a typical surface plasmon resonance peak at 352&#xa0;nm, Zn-O vibrational bands in FTIR spectra, and a hexagonal wurtzite crystalline structure (~ 25&#xa0;nm) in XRD patterns, with FESEM images showing particles of 20–50&#xa0;nm in size. Notably, Sr-ZnONPs showed potent water disinfection activity under simulated contamination conditions, reducing bacteria by 3.16-log (99.93%) in 2&#xa0;h and 4.71-log (99.998%) in 4&#xa0;h, with substantial turbidity reduction (&gt; 3-log OD reduction). Besides, Sr-ZnONPs showed significant antioxidant (88% DPPH radical scavenging), anti-inflammatory (82–90% inhibition of protein denaturation), antidiabetic (76% inhibition of α-amylase), and wound-healing (75% fibroblast migration) activities, in addition to high biocompatibility in brine shrimp and 3T3-L1 fibroblast cells. In conclusion, this study emphasizes the use of Sr-ZnONPs as eco-friendly, multifaceted nanomaterials with high applicability in sustainable water disinfection and biomedical applications.</p>

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Green synthesis of Shorea robusta flower derived ZnO Nanoparticles: Multifunctional efficacy in microbial water disinfection and biomedical applications

  • 期刊论文

  • 发表日期：

    2026年5月21日

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  • Iadalin Ryntathiang,
  • Vaibhavi Elangovan,
  • Chanthini Kanagaraj Muthu Pandian,
  • Archana Behera,
  • Mukesh Kumar Dharmalingam Jothinathan

摘要

Green nanotechnology offers environmentally friendly, multi-functional solutions for microbial water disinfection and biomedical applications, pertinent to the One Health approach. In the current research, Shorea robusta flowers were used as a natural reducing and capping agent for the biosynthesis of zinc oxide nanoparticles (Sr-ZnONPs). The formation of stable spherical nanoparticles was evidenced by a typical surface plasmon resonance peak at 352 nm, Zn-O vibrational bands in FTIR spectra, and a hexagonal wurtzite crystalline structure (~ 25 nm) in XRD patterns, with FESEM images showing particles of 20–50 nm in size. Notably, Sr-ZnONPs showed potent water disinfection activity under simulated contamination conditions, reducing bacteria by 3.16-log (99.93%) in 2 h and 4.71-log (99.998%) in 4 h, with substantial turbidity reduction (> 3-log OD reduction). Besides, Sr-ZnONPs showed significant antioxidant (88% DPPH radical scavenging), anti-inflammatory (82–90% inhibition of protein denaturation), antidiabetic (76% inhibition of α-amylase), and wound-healing (75% fibroblast migration) activities, in addition to high biocompatibility in brine shrimp and 3T3-L1 fibroblast cells. In conclusion, this study emphasizes the use of Sr-ZnONPs as eco-friendly, multifaceted nanomaterials with high applicability in sustainable water disinfection and biomedical applications.