Nov
25

Big Results, Tiny Particles

Nanoparticles are attracting worldwide scientific interest because of their potential applications, particularly in the fields of biomedical research and industrial processes. “Our goal is to use them to benefit science and, ultimately, mankind,” says The MacDiarmid Institute’s Richard Tilley. SOURCE: “Victorious” – Victoria University of Wellington.   Read More

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Nanomaterials for Biological Applications

We use multidisciplinary approaches to develop magnetic nanoparticles, quantum dots (QDs) and silver nanoparticles for biomedical applications. Magnetic nanoparticles (including superparamagnetic nanoparticles) of well-defined shape are being developed with  Carla Meledandri. We are investigating their magnetic resonance properties in suspension, and their potential as MRI contrast agents to improve cancer detection. The question of how […]

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Biology on-the-Fly

Ultra-sensitive spectroscopy – with special emphasis on single molecule Surface Enhanced Raman Scattering – will continue to grow from the recent successes in the application of the technique to reveal new aspects of the physics of isolated molecules (especially those of biological interest) on surfaces. Among recent developments, our group has demonstrated the possibility of […]

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Transport in the Nanoworld

Understanding of nanofluidics has the potential to revolutionise the way in which particle sensing and analysis, and ultimately molecular biology, is done. We seek to manipulate transport of fluid and particles in and around micro- to nano-scale devices, individual pores and porous materials. We use elastomeric tunable nanopores to study a wide range of interesting […]

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Sep
24

MacDiarmid Investigators success with MSI bids

Congratulations to the following MacDiarmid Institute Investigators named on awarded MSI grants, in no particular order:   New Cathodes, $964,050 over 2 years: Simon Hall (Lead Scientist, MU) Magnetic Devices, $3.9 m over 4 years: John Kennedy (Co-Lead Scientist, GNS) and Simon Granville (IRL) [Grant co-lead with Nick Long, IRL] Laser Micromachining, $7.8 m over […]

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Dec
16

Last thoughts for 2011

We have had a large number of successes this year, starting with Professor Sir Paul Callaghan (VUW) being named New Zealander of the Year which led straight into our biennial International conference.  This year the conference was held in Wellington and it was the largest of the five that we have held, bringing several hundred […]

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Ultra-sensitive laser spectroscopy (Etchegoin, LeRu, Tilley)

Current work is expanding on this success by investigating SERS for more complex multiple-particle nanostructure geometries. We have also expanded now into subtler aspects of single-molecule detection, like the demonstration of isotopic variations in single molecule spectra and the possibility of observing single molecules in basic geometries involving controllable enhancements. The work has been complemented […]

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Nanostructured Materials for Applications in Catalysis (Golovko, Kemmitt, Brown(I), Johnston, Tilley, Telfer and others)

The chemical reactivity of the nano-structured catalysts will be explored with a focus on revealing structure-property relationships, particularly on how size, chemical composition and morphology of the nanoparticles affect their performance as catalysts. Their catalytic activity and selectivity will be investigated in relation to partial, selective oxidation under benign conditions, photocatalytic degradation of pollutants and […]

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Shape and size control of nanocrystals for biomedical applications (Tilley, Williams(D), Hendy)

We are part of a multidisciplinary team developing magnetic nanoparticles and quantum dots (QDs) for biomedical applications.  We propose to extend the liquid phase synthesis of QDs to new materials containing silicon and germanium.  Biomolecules, such as antibodies, will be attached to the QD surface with the aim of targeted delivery of drugs to disease […]

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Tunable Nanopores for Genomics and Diagnostics (Willmott, Partridge, Tallon, Etchegoin, Tilley)

This objective aims to develop applications for tunable nanopores in collaboration with Izon Science, a Christchurch nanotechnology startup.  A long-term goal is to achieve sequential detection of bases on RNA or DNA segments as they pass through a nanopore. To do this, tunable nanopores are being studied in combination with plasmonic noble metal particles and […]

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Nov
29

SC1000B Gatan Digital Camera for Transmission Electron Microscope

About the Instrument: “If you can imagine replacing a digital camera from six years ago with a new one, that’s the difference,” says Richard Tilley, the former head of the Electron Microscope facility at Victoria University. The new TEM camera is used for recording both images and electron diffraction patterns. It’s more sensitive than the […]

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Nov
29

Cryo-attachment for Scanning Electron Microscope

Electron microscopes are used by researchers all around the country and have been a major factor in the Institute’s success so far. The cryo-attachment is one of two new features of the electron microscope facility at Victoria University. It allows researchers to take images of soft materials and fluids. About the Instrument: Without a cryo-attachment […]

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Jan
01

MacDiarmid Young Scientist of the Year 2009

John Watt was awarded MacDiarmid Young Scientist of the Year at a ceremony in Auckland on Friday 27 August. John’s work has been focused on using palladium particles to remove toxic gases, including carbon monoxide and nitrous oxide, from dirty exhaust fumes emmitted by vehicles. The present process is ‘horribly inefficient’ and much more expensive […]

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