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Ruthenium porphyrin functionalised single-walled carbon nanotube arrays have been prepared using coordination of the axial position of the metal ion onto 4-aminopyridine pre-assembled single-walled carbon nanotubes directly anchored to a silicon(100) surface (SWCNTs-Si). The formation of these ruthenium porphyrin functionalised single-walled carbon nanotube array electrodes (RuTPP-SWCNTs-Si) has been...
Time of Flight Secondary Ion Mass Spectrometry (ToF-SIMS) was used to investigate the chemical nature of methane plasma treated graphite surfaces. Principle Component Analysis (PCA) was applied to the SIMS data, revealing chemical changes to the surfaces, in particular the extent of hydrogenation. The hydrogen content of the HOPG surface is observed to increase with systematic increases in power of...
An electroless gold deposition method was used to fabricate gold nanotubes within the pores of polycarbonate and porous alumina template membranes. This approach provides control over the pore size of the membrane, with pore sizes being reduced to molecular dimensions. The effect of the pore size and surface chemistry on the transport properties of gold nanotube membranes has been explored. By modifying...
A supramolecular complex was formed between ruthenium porphyrins and pyridyl-functionalised carbon nanotubes, which were in turn covalently attached to a silicon surface. The surface was characterised by LDI-ToF-MS, UV-vis spectrophotometry and steady-state spectrofluorometric methods.
Nanosphere lithography, which allows for the fabrication of patterned metal surfaces, is a simple, effective and unconventional technique that exploits a self-assembly process. Using this technique, polystyrene nanospheres with diameters of 500nm, and 1mum were assembled onto a 'muscovite' mica substrate in a hexagonally close packed monolayer array, to provide a physical mask for material deposition...
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