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Proceedings Paper

Investigation of superparamagnetic (Fe3O4) nanoparticles and magnetic field exposures on CHO-K1 cell line
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Paper Abstract

Rapid development in nanomaterial synthesis and functionalization has led to advanced studies in actuation and manipulation of cellular functions for biomedical applications. Often these actuation techniques employ externally applied magnetic fields to manipulate magnetic nanomaterials inside cell bodies in order to drive or trigger desired effects. While cellular interactions with low-frequency magnetic fields and nanoparticles have been extensively studied, the fundamental mechanisms behind these interactions remain poorly understood. Additionally, modern investigations on these concurrent exposure conditions have been limited in scope, and difficult to reproduce. This study presents an easily reproducible method of investigating the biological impact of concurrent magnetic field and nanoparticle exposure conditions using an in-vitro CHO-K1 cell line model, with the purpose of establishing grounds for in-depth fundamental studies of the mechanisms driving cellular-level interactions. Cells were cultured under various nanoparticle and magnetic field exposure conditions from 0 to 500 μg/ml nanoparticle concentrations, and DC, 50 Hz, or 100 Hz magnetic fields with 2.0 mT flux density. Cells were then observed by confocal fluorescence microscopy, and subject to biological assays to determine the effects of concurrent extreme-low frequency magnetic field and nanoparticle exposures on cellnanoparticle interactions, such as particle uptake and cell viability by MTT assay. Current results indicate little to no variation in effect on cell cultures based on magnetic field parameters alone; however, it is clear that deleterious synergistic effects of concurrent exposure conditions exist based on a significant decrease in cell viability when exposed to high concentrations of nanoparticles and concurrent magnetic field.

Paper Details

Date Published: 7 March 2016
PDF: 10 pages
Proc. SPIE 9706, Optical Interactions with Tissue and Cells XXVII, 97061Y (7 March 2016); doi: 10.1117/12.2220816
Show Author Affiliations
Zachary Coker, Air Force Research Lab. (United States)
Univ. of North Texas (United States)
Larry Estlack, General Dynamics Information Technology (United States)
Saber Hussain, Air Force Research Lab. (United States)
Tae-Youl Choi, Univ. of North Texas (United States)
Bennett L. Ibey, Air Force Research Lab. (United States)

Published in SPIE Proceedings Vol. 9706:
Optical Interactions with Tissue and Cells XXVII
E. Duco Jansen, Editor(s)

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