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Nanotechnology for High School Classrooms: Development of Experimental Demonstration for Patterning Magnetic Nanoparticles Using Ferrofluids

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Abstract:

Considering the importance of nanoscience and nanotechnology, we offered a unique experience to a high school teacher in developing a simple experimental module for patterning magnetic nanoparticles onto a silicon wafer, the latter being a critical step in magnetic recording and device industry. A four week pilot program was established through a team effort including a faculty team leader, a graduate student, and a high school teacher to develop an inquiry-based learning experimental demonstration. The approach utilized electromagnetically activated or 'spiked' ferrofluid (magnetic nanoparticles dispersed in a viscous/oily solution) for patterning magnetic nanoparticles. An automated motor assembly was used to gradually descend a suspended silicon wafer on spiked ferrofluid. Different parameters such as magnetic field strength, wafer descending speed, and contact depth of the wafer with the ferrofluid were studied and their influence on the pattern formation was evaluated.

Keywords: FERROFLUID; HIGH SCHOOL CURRICULUM; MAGNETIC FIELD; NANOPARTICLES; NANOTECHNOLOGY; PATTERNING

Document Type: Research Article

DOI: https://doi.org/10.1166/jne.2012.1020

Publication date: 2013-03-01

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  • The Journal of Nano Education (JNE) is a peer-reviewed international journal that aims to provide the most complete and reliable source of information on current developments in nanoscale science, technology, engineering, and medical education.
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