Breakthrough in Nanoparticle Synthesis: Researchers Develop Highly Stable and Multifunctional Silver Nanoparticles

Strategic Insights -

Researchers at Tripura University have made a significant breakthrough in the synthesis of nanoparticles, creating highly stable and multifunctional silver nanoparticles (SP-AgNPs) using the seed extract of Spondias pinnata. The study, published in Scientific Reports, highlights the potential of these nanoparticles in biomedical and environmental applications. The researchers found that the SP-AgNPs exhibited remarkable colloidal stability for 6-7 months at ambient temperature, supported by a highly negative zeta potential of -37 mV. Characterization via various techniques confirmed the spherical morphology of the SP-AgNPs, with an average diameter of 32 ± 5 nm and a face-centered cubic arrangement of particles.

Key Takeaways:

  • The researchers developed a novel method for synthesizing silver nanoparticles using the seed extract of Spondias pinnata, which shows great promise for biomedical and environmental applications.
  • The synthesized silver nanoparticles (SP-AgNPs) exhibited remarkable colloidal stability for 6-7 months at ambient temperature, with a highly negative zeta potential of -37 mV.
  • The SP-AgNPs demonstrated significant antibacterial and antibiofilm activity against Escherichia coli (E. coli) MTCC 118 strain, with inhibition zones of 6.15 mm and 6.9 mm and 63.51% reduction in bacterial proliferation at concentrations of 150 g/mL and 175 g/mL, respectively.
  • The SP-AgNPs also showed pronounced catalytic dye degradation activity against methylene blue (MB), with a maximum degradation efficiency of 86% adhering to pseudo-first-order kinetics with a rate constant of 0.01991 min^-1.
  • The study emphasizes the potential of SP-AgNPs as multifunctional silver nanoparticles with applications in diagnostics, therapeutics, and environmental remediation.
  • The researchers also point out the importance of exploring eco-friendly and sustainable methods for nanoparticle synthesis to minimize environmental impact.

Statistics:

  • The SP-AgNPs exhibited colloidal stability for 6-7 months at ambient temperature (25 ± 4 °C).
  • The average diameter of the SP-AgNPs was 32 ± 5 nm.
  • The face-centered cubic arrangement of particles was confirmed via XRD studies.
  • The SP-AgNPs demonstrated significant antibacterial and antibiofilm activity against E. coli (E. coli) MTCC 118 strain.
  • The SP-AgNPs showed pronounced catalytic dye degradation activity against methylene blue (MB), with a maximum degradation efficiency of 86%.

Sources:

  • Spondias pinnata mediated silver nanoparticles with antibiofilm and catalytic potential. Scientific Reports, 2025, 15(1):1-16. (Scientific Reports - http://www.nature.com/srep/index.html). The publisher for Scientific Reports is Nature Portfolio. A free version of this journal article is available at https://doi-org.sdpl.idm.oclc.org/10.1038/s41598-025-17558-1.
  • NewsRx. Tripura University Researchers Provide New Study Findings on Nanoparticles (Spondias pinnata mediated silver nanoparticles with antibiofilm and catalytic potential). Nanotechnology Weekly. October 20, 2025; p 2417.