Cover Image

Encapsulation of metallic iron magnetic nanoparticles by polyacrylamide in water suspensions

A. Shankar, A. P. Safronov, I. Beketov

Abstract


Theoretical consideration of the factors of the stability of metallic iron magnetic nanoparticles (MNPs) in water suspensions was done using extended DLVO (Derjaguin-Landau-Verwey-Overbeek) approach based on the balance among Van der Waals, electrostatic, magnetic and steric interactions.  Magnetic and steric interactions dominate over other in suspensions of Fe MNPs. To test the theory Fe MNPs with average diameter 84 nm were synthesized by electrical explosion of wire and encapsulated by polyacrylamide in water suspension to provide steric repulsion. It was shown that encapsulation resulted in the efficient diminishing of the aggregation of metallic iron MNPs in water.

Keywords


iron nanoparticles; encapsulation; polyacrylamide

Full Text:

PDF

References


Huber DL. Synthesis, Properties, and Applications of Iron Nanoparticles. Small. 2005;1(5):482-501. doi:10.1002/smll.200500006

Llandro J, Palfreyman JJ, Ionescu A, Barnes CHW. Magnetic biosensor technologies for medical applications: a review. Med Biol Eng Comput. 2010;48(10):977-98. doi:10.1007/s11517-010-0649-3

Lu AH, Salabas EL, Schuth F. Magnetic nanoparticles: synthesis, protection, functionalization, and application. Angew Chem Int Ed Engl. 2007;46(8):1222-44. doi:10.1002/anie.200602866

Liu G, Gao J, Ai H, Chen X. Applications and Potential Toxicity of Magnetic Iron Oxide Nanoparticles. Small. 2013;9(9-10):1533-45. doi:10.1002/smll.201201531

Hiemenz PC, Rajagopalan R. Principles of Colloid and Surface Chemistry. New York: Marcel Dekker, 1997. 499 p. ISBN 9780824793975.

Kurlyandskaya GV, Bhagat SM, Safronov AP, Beketov IV, Larrañaga A. Spherical magnetic nanoparticles fabricated by electric explosion of wire. AIP Adv. 2011;1:042122. doi:10.1063/1.3657510

Beketov IV, Safronov AP, Medvedev AI, Alonso J, Kurlyandskaya GV, Bhagat SM. Iron oxide nanoparticles fabricated by electric explosion of wire: focus on magnetic nanofluids. AIP Adv. 2012;2:022154. doi:10.1063/1.4730405

Safronov AP, Kurlyandskaya GV, Chlenova AA, Kuznetsov MV, Bazhin DN, Beketov IV, Sanchez-Ilarduya MB, Martinez-Amesti A. Carbon Deposition from Aromatic Solvents onto Active Intact 3d Metal Surface at Ambient Conditions. Langmuir. 2014;30(11):3243-53. doi:10.1021/la4049709

Diguet G., Beaugnon E, Cavaillé JY. Shape Effect in the Magnetostriction of Ferromagnetic Composite. J Magn Magn Mater. 2010;322(21):3337-41. doi:10.1016/j.jmmm.2010.06.020

Sanchez-Dominguez M, Rodriguez-Abreu C. Nanocolloids: A Meeting Point for Scientists and Technologists. Netherlands: Elsevier, 2016. ISBN 978-0-12-801578-0.

Walker DA, Kowalczyk B, de la Cruz MO, Grzybowski BA. Electrostatics at the nanoscale. Nanoscale. 2011;3(4):1316-44. doi:10.1039/C0NR00698J

Lim JK, Majetich SA, Tilton RD. Stabilization of Superparamagnetic Iron Oxide Core−Gold Shell Nanoparticles in High Ionic Strength Media. Langmuir. 2009;25(23):13384-93. doi:10.1021/la9019734

Rosensweig RE. Ferrohydrodynamics. USA: Dover books on physics, 2014. 344 p. ISBN 9780486678344.

O’Handley RC. Modern Magnetic Materials. New York: John Wiley & Sons, 1972. 740 p. ISBN 978-0471155669.

Jun YW, Seo JW, Cheon J. Nanoscaling Laws of Magnetic Nanoparticles and Their Applicabilities in Biomedical Sciences. Acc Chem Res. 2008;41(2):179-89. doi:10.1021/ar700121f




DOI: https://doi.org/10.15826/chimtech/2017.4.3.01

Copyright (c) 2017 Ajay Shankar, Alexander P. Safronov, Igor Beketov

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.

Scopus logo WorldCat logo DOAJ logo CAS logo BASE logo eLibrary logo

© Chimica Techno Acta, 2014–2024
ISSN 2411-1414 (Online)
This journal is licensed under a Creative Commons Attribution 4.0 International