Magnetic Control of Fe3O4 Nanomaterial for Fat Ablation in Microchannel
1
College of Mechanical Engineering and Automation, Huaqiao University, Xiamen 361021, Fujian, China
2
Department of Mechanical Engineering, Chung Yuan Christian University, Chungli, Taoyuan 32023, Taiwan
3
Mapua Institute of Technology, Intramuros, Manila 1002, Philippines
*
Author to whom correspondence should be addressed.
Academic Editor: Wen-Hsiang Hsieh
Materials 2015, 8(11), 7813-7820; https://doi.org/10.3390/ma8115429
Received: 14 October 2015 / Revised: 12 November 2015 / Accepted: 13 November 2015 / Published: 19 November 2015
(This article belongs to the Special Issue Selected Papers from ICETI2014)
In this study, surface modification of iron (II, III) oxide Fe3O4 nanoparticles by oleic acid (OA) coating is investigated for the microablation of fat in a microchannel. The nanoparticles are synthesized by the co-precipitation method and then dispersed in organic solvent prior to mixing with the OA. The magnetization, agglomeration, and particle size distribution properties of the OA-coated Fe3O4 nanoparticles are characterized. The surface modification of the Fe3O4 nanoparticles reveals that upon injection into a microchannel, the lipophilicity of the OA coating influences the movement of the nanoparticles across an oil-phase barrier. The motion of the nanoparticles is controlled using an AC magnetic field to induce magnetic torque and a static gradient field to control linear translation. The fat microablation process in a microchannel is demonstrated using an oscillating driving field of less than 1200 Am−1.
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Keywords:
Fe3O4 nanoparticles; magnetic control; oleic-acid; fat ablation
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MDPI and ACS Style
Chang, M.; Chang, M.-Y.; Lin, W.-S.; Gabayno, J.L. Magnetic Control of Fe3O4 Nanomaterial for Fat Ablation in Microchannel. Materials 2015, 8, 7813-7820.
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