Rahi Varsani

PhD thesis

Dynamics of magnetic nanoparticle chain formation and its effects on proton transverse relaxivity

Magnetic nanoparticles in an aqueous suspension can form linear chains when exposed to a magnetic field. The formation of chains has the potential to affect biomedical applications of magnetic nanoparticle suspensions such as drug delivery and MRI contrast enhancement. As part of my research, I studied the behaviour of chain formation for different magnetic nanoparticle suspension parameters including concentration and the net magnetic moments through supercomputer simulation. Additionally, I developed a particle-locking technique that enabled me to directly correlate chain structure and proton transverse relaxivity over a time series.

Thesis at UWA Research Repository

Research Profile at UWA

Honours thesis

2D and 3D composition and chemistry of nanomaterials

The decomposition of methane into hydrogen gas can result in the formation of interesting graphitic nanomaterials. I studied the relationship between nanoparticle structure and the embedded catalyst nanoparticles through transmission electron microscopy (TEM). This included techniques such as EELS, EFTEM and EFTEM tomography.

Complete thesis (15.2 mb)

Cite as:
Varsani, R.R. 2D and 3D Composition and Chemistry of Nanomaterials. Honours Thesis, The University of Western Australia. (2009)

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