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Sensors 2013, 13(6), 6900-6909; doi:10.3390/s130606900
Article

A Solid State Nanopore Device for Investigating the Magnetic Properties of Magnetic Nanoparticles

1,* , 1
, 1
, 2
 and 1,2,*
Received: 29 March 2013; in revised form: 14 April 2013 / Accepted: 17 May 2013 / Published: 24 May 2013
(This article belongs to the Section Physical Sensors)
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Abstract: In this study, we explored magnetic nanoparticles translocating through a nanopore in the presence of an inhomogeneous magnetic field. By detecting the ionic current blockade signals with a silicon nitride nanopore, we found that the translocation velocity that is driven by magnetic and hydrodynamic forces on a single magnetic nanoparticle can be accurately determined and is linearly proportional to the magnetization of the magnetic nanoparticle. Thus, we obtained the magneto-susceptibility of an individual nanoparticle and the average susceptibility over one hundred particles within a few minutes.
Keywords: nanopore; magnetic nanoparticle; ion current blockade; magneto-susceptibility nanopore; magnetic nanoparticle; ion current blockade; magneto-susceptibility
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.

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MDPI and ACS Style

Park, S.; Lim, J.; Pak, Y.E.; Moon, S.; Song, Y.-K. A Solid State Nanopore Device for Investigating the Magnetic Properties of Magnetic Nanoparticles. Sensors 2013, 13, 6900-6909.

AMA Style

Park S, Lim J, Pak YE, Moon S, Song Y-K. A Solid State Nanopore Device for Investigating the Magnetic Properties of Magnetic Nanoparticles. Sensors. 2013; 13(6):6900-6909.

Chicago/Turabian Style

Park, SangYoon; Lim, Jaekwan; Pak, Y. E.; Moon, Seunghyun; Song, Yoon-Kyu. 2013. "A Solid State Nanopore Device for Investigating the Magnetic Properties of Magnetic Nanoparticles." Sensors 13, no. 6: 6900-6909.



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