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Related Concept Videos

Colloidal precipitates01:09

Colloidal precipitates

629
The high insolubility of some precipitates can result in an unfavorable relative supersaturation. This can lead to colloidal particles with a large surface-to-mass ratio, where adsorption is promoted. For instance, in the precipitation of silver chloride, silver ions are adsorbed on the surface of the colloidal particles, forming a primary layer. This layer attracts ions of opposite charge (such as nitrate ions), forming a diffuse secondary layer of adsorbed ions. This electric double layer...
629
Extraction: Advanced Methods00:56

Extraction: Advanced Methods

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Metal ions can be separated from one another by complexation with organic ligands–the chelating agent– to form uncharged chelates. Here, the chelating agent must contain hydrophobic groups and behave as a weak acid, losing a proton to bind with the metal. Since most organic ligands used in this process are insoluble or undergo oxidation in the aqueous phase, the chelating agent is initially added to the organic phase and extracted into the aqueous phase. The metal-ligand complex is...
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Comparative Characterization of Iron and Silver Nanoparticles: Extract-Stabilized and Classical Synthesis Methods.

Farida Akhatova1, Svetlana Konnova1, Marina Kryuchkova1

  • 1Bionanotechnology Lab, Institute of Fundamental Medicine and Biology, Kazan Federal University, Kreml uramı 18, 420008 Kazan, Republic of Tatarstan, Russia.

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|June 10, 2023
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Summary
This summary is machine-generated.

Green synthesis of silver nanoparticles using sphagnum extract offers a cost-effective and eco-friendly alternative for creating novel antimicrobial compounds. These plant-derived nanoparticles exhibit significant antibacterial activity, including against biofilms.

Keywords:
Sphagnum fallaxextract-stabilized nanoparticlesiron nanoparticles (FeNPs)silver nanoparticles (AgNP)

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Area of Science:

  • Materials Science
  • Nanotechnology
  • Biotechnology

Background:

  • Traditional colloidal synthesis of nanoparticles can be costly and environmentally taxing.
  • Plant-mediated synthesis offers a sustainable and economical approach to nanoparticle production.
  • Silver and iron nanoparticles possess diverse applications, including antimicrobial uses.

Purpose of the Study:

  • To synthesize silver and iron nanoparticles using sphagnum moss extract.
  • To characterize the synthesized nanoparticles using various analytical techniques.
  • To evaluate the antibacterial efficacy of the nanoparticles, including their effect on biofilm formation.

Main Methods:

  • Nanoparticle synthesis via plant extract (sphagnum) and traditional methods.
  • Characterization using Dynamic Light Scattering (DLS), UV-visible spectroscopy, Transmission Electron Microscopy (TEM) with Energy Dispersive X-ray Spectroscopy (EDS), Atomic Force Microscopy (AFM), dark-field hyperspectral microscopy, and Fourier-Transform Infrared Spectroscopy (FT-IR).
  • Antibacterial activity assays, including biofilm formation assessment.

Main Results:

  • Successful synthesis of silver and iron nanoparticles using sphagnum extract.
  • Comprehensive structural and property analysis confirming nanoparticle formation and characteristics.
  • Demonstrated high antibacterial activity of the synthesized nanoparticles against tested microbes.
  • Evidence of nanoparticle influence on bacterial biofilm formation.

Conclusions:

  • Sphagnum moss extract is an effective medium for green synthesis of silver and iron nanoparticles.
  • The synthesized nanoparticles exhibit potent antimicrobial properties.
  • These plant-derived nanoparticles hold significant promise for future research and applications in antimicrobial technologies.