Next Article in Journal
Indium Incorporation into InGaN Quantum Wells Grown on GaN Narrow Stripes
Previous Article in Journal
Effectiveness of Surface Treatment with Amine Plasma for Improving the Biocompatibility of Maxillofacial Plates
Open AccessFeature PaperArticle

Polyacrylamide Ferrogels with Ni Nanowires

1
Institute of Natural Sciences and Mathematics, Ural Federal University, 620002 Ekaterinburg, Russia
2
Institute of Electrophysics, Ural Division RAS, 620016 Ekaterinburg, Russia
3
Electrical and Computer Engineering, University of Minnesota, Minneapolis, MN 55455, USA
4
Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, MN 55455, USA
5
Department of CITIMAC, University of Cantabria, 39005 Santander, Spain
6
Departamento Electricidad y Electrónica, Universidad del País Vasco UPV-EHU, 48080 Bilbao, Spain
*
Author to whom correspondence should be addressed.
Materials 2019, 12(16), 2582; https://doi.org/10.3390/ma12162582
Received: 17 July 2019 / Revised: 8 August 2019 / Accepted: 12 August 2019 / Published: 13 August 2019
(This article belongs to the Special Issue Advances in Magnetic Materials and Magneto-Elastic Sensors)
  |  
PDF [2388 KB, uploaded 13 August 2019]
  |  

Abstract

Nickel magnetic nanowires (NWs) have attracted significant attention due to their unique properties, which are useful for basic studies and technological applications, for example in biomedicine. Their structure and magnetic properties were systematically studied in the recent years. In this work, Ni NWs with high aspect ratios (length/diameter ~250) were fabricated by electrodeposition into commercial anodic aluminum oxide templates. The templates were then etched and the NWs were suspended in water, where their hydrodynamic size was evaluated by dynamic light scattering. The magnetic response of these NWs as a function of an external magnetic field indicates a dominant shape anisotropy with propagation of the vortex domain wall as the main magnetization reversal process. The suspension of Ni NWs was used in the synthesis of two types of polyacrylamide ferrogels (FGs) by free radical polymerization, with weight fractions of Ni NWs in FGs of 0.036% and 0.169%. The FGs were reasonably homogeneous. The magnetic response of these FGs (hysteresis loops) indicated that the NWs are randomly oriented inside the FG, and their magnetic response remains stable after embedding. View Full-Text
Keywords: nickel nanowires; electrochemical deposition; ferrogels; nanomagnetism nickel nanowires; electrochemical deposition; ferrogels; nanomagnetism
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Safronov, A.P.; Stadler, B.J.H.; Um, J.; Zamani Kouhpanji, M.R.; Alonso Masa, J.; Galyas, A.G.; Kurlyandskaya, G.V. Polyacrylamide Ferrogels with Ni Nanowires. Materials 2019, 12, 2582.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Materials EISSN 1996-1944 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top