Document Type

Article

Article Version

Post-print

Publication Date

6-2014

Abstract

Magnetotactic bacteria (MTB), discovered in early 1970s contain single-domain crystals of magnetite (Fe3O4) called magnetosomes that tend to form a chain like structure from the proximal to the distal pole along the long axis of the cell. The ability of these bacteria to sense the magnetic field for displacement, also called magnetotaxis, arises from the magnetic dipole moment of this chain of magnetosomes. In aquatic habitats, these organisms sense the geomagnetic field and traverse the oxic-anoxic interface for optimal oxygen concentration along the field lines. Here we report an elegant use of MTB where magnetotaxis of Magnetospirillum magneticum (classified as AMB-1) could be utilized for controlled navigation over a semiconductor substrate for selective deposition. We examined 50mm long coils made out of 18AWG and 20AWG copper conductors having diameters of 5mm, 10mm and 20mm for magnetic field intensity and heat generation. Based on the COMSOL simulations and experimental data, it is recognized that a compound semiconductor manufacturing technology involving bacterial carriers and carbon-based materials such as graphene and carbon nanotubes would be a desirable choice in the future.

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Copyright 2014 World Scientific Publishing Company. All rights reserved.

The post-print version has been archived here with permission from the copyright holder.

Electronic version of an article published in International Journal of High Speed Electronics and Systems, 23, 01n02, 2014,1450008. DOI: 10.1142/S0129156414500086 © World Scientific Publishing Company. https://www.worldscientific.com/worldscinet/ijhses

Publication Title

International Journal of High Speed Electronics and Systems

Published Citation

Macwan, Isaac, Zihe Zhao, Omar Sobh, Jinnque Rho, Ausif Mahmood, and Prabir Patra. “Magnetotaxis as a Means for Nanofabrication.” International Journal of High Speed Electronics and Systems 23, no. 01n02 (2014). https://doi.org/10.1142/S0129156414500086.

DOI

10.1142/S0129156414500086

Peer Reviewed

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