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Related Experiment Video

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Evaluating Plasmonic Transport in Current-carrying Silver Nanowires
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Polyacrylamide Ferrogels with Ni Nanowires.

Alexander P Safronov1,2, Bethanie J H Stadler3,4, Joseph Um3

  • 1Institute of Natural Sciences and Mathematics, Ural Federal University, 620002 Ekaterinburg, Russia.

Materials (Basel, Switzerland)
|August 16, 2019
PubMed
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Special Issue "Challenges and Future Trends of Magnetic Sensors".

Sensors (Basel, Switzerland)·2025

Nickel magnetic nanowires were synthesized and embedded into ferrogels. These magnetic ferrogels maintain stable magnetic properties, showing potential for various applications.

Area of Science:

  • Materials Science
  • Nanotechnology
  • Magnetism

Background:

  • Nickel magnetic nanowires (NWs) possess unique properties valuable for basic research and technological applications, including biomedicine.
  • Systematic studies have explored the structure and magnetic behavior of Ni NWs in recent years.

Purpose of the Study:

  • To fabricate high-aspect-ratio nickel magnetic nanowires.
  • To characterize their magnetic properties and magnetization reversal mechanisms.
  • To synthesize and evaluate polyacrylamide ferrogels incorporating these Ni NWs.

Main Methods:

  • Fabrication of Ni NWs via electrodeposition into anodic aluminum oxide templates.
  • Characterization of NW hydrodynamic size using dynamic light scattering.
  • Synthesis of ferrogels using free radical polymerization with embedded Ni NWs.
Keywords:
electrochemical depositionferrogelsnanomagnetismnickel nanowires

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Main Results:

  • High-aspect-ratio Ni NWs (length/diameter ~250) were successfully synthesized.
  • Magnetic response indicated dominant shape anisotropy and vortex domain wall propagation during magnetization reversal.
  • Embedded Ni NWs in ferrogels were randomly oriented but retained stable magnetic properties.

Conclusions:

  • Nickel magnetic nanowires with high aspect ratios were fabricated and characterized.
  • The synthesized ferrogels demonstrate stable magnetic behavior due to the embedded nanowires.
  • These magnetic ferrogels show promise for applications requiring tunable magnetic responses.