4-8 July 2016
Kramer Law building
Africa/Johannesburg timezone
<a href="http://events.saip.org.za/internalPage.py?pageId=10&confId=86">The Proceedings of SAIP2016</a> published on 24 December 2017

Simulating Iron Oxide Nanoparticle Oscillations in different Electric Fields.

5 Jul 2016, 16:10
1h 50m
Kramer Law building

Kramer Law building

UCT Middle Campus Cape Town
Board: A.407
Poster Presentation Track A - Division for Physics of Condensed Matter and Materials Poster Session (1)

Speaker

Dr Richard Harris (University of the Free State)

Abstract content <br> &nbsp; (Max 300 words)<br><a href="http://events.saip.org.za/getFile.py/access?resId=0&materialId=0&confId=34" target="_blank">Formatting &<br>Special chars</a>

The surface charge on small iron oxide nanoparticles may be tuned during synthesis as a function of size (and shape) by precisely controlling the quantity (concentration) and the type of surfactant chosen to act as the capping agent. As such, these nanoparticles may possess a small amount of uncapped charge. Similarly, the positive charge on bare nanoparticles may be carefully engineered to suit a particular application. These nanoparticles with a small amount of uncapped charge behave like imperfect point charges and even dipoles in the presence of an external electric field. In this theoretical study it will be shown how these properties may be exploited to develop chemical and biological sensors. In particular hydroxyl and hydrocarbon detection are presented as case studies.

Please indicate whether<br>this abstract may be<br>published online<br>(Yes / No)

No

Apply to be<br> considered for a student <br> &nbsp; award (Yes / No)?

No

Main supervisor (name and email)<br>and his / her institution

N/A

Would you like to <br> submit a short paper <br> for the Conference <br> Proceedings (Yes / No)?

Yes

Level for award<br>&nbsp;(Hons, MSc, <br> &nbsp; PhD, N/A)?

N/A

Primary author

Dr Richard Harris (University of the Free State)

Presentation Materials

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