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Optical imaging and magnetophoresis of nanorods |
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| Authors: | JitKang Lim David X. Tan Robert D. Tilton Sara A. Majetich |
| Affiliation: | a Department of Chemical Engineering, Carnegie Mellon University, USA b Department of Physics, Carnegie Mellon University, USA c Department of Biological Sciences, Carnegie Mellon University, USA d Department of Biomedical Engineering, Carnegie Mellon University, USA e School of Chemical Engineering, Universiti Sains Malaysia, 14300 Seberang Prai Selatan, Penang, Malaysia |
| Abstract: | Peclet number analysis is performed to probe the convective motion of nanospheres and nanorods under the influence of magnetophoresis and diffusion. Under most circumstances, magnetophoretic behaviour dominates diffusion for nanorods, as the magnetic field lines tend to align the magnetic moment along the rod axis. The synthesis and dispersion of fluorophore-tagged nanorods are described. Fluorescence microscopy is employed to image the nanorod motion in a magnetic field gradient. The preliminary experimental data are consistent with the Peclet number analysis. |
| Keywords: | Magnetic nanoparticles Magnetophoresis Brownian motion Nanorod Peclet number |
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