AU – Page 10 – TechConnect Briefs

Electron Energy-Loss Spectroscopy: Measuring Optical Properties at the Nanometre Scale

Keast V., Bosman M., University of Sydney, AU

Electron energy-loss spectroscopy (EELS) is widely used to study the composition and electronic structure of materials at the nanometre scale. The low-loss region of the EEL spectrum (< ~50 eV) is of particular interest for [...]

Molecular Simulation of Dendritic Systems

Sadus R.J., Swinburne University of Technology, AU

Dendrimers are a new class of highly branched polymers consisting of short chain units with multifunctional groups at both ends. Starting from an initiator core, the successive reaction of the functional groups with other units [...]

An Ethical Perspective on Nanotechnology, Health and Longevity

Weckert J., Moor J., Charles Sturt University, AU

The idea that nanotechnology may be able to aid human health is not new, and whatever we make of some of the more dramatic claims, there is now a considerable literature describing ways that nanotechnology [...]

Issues relating to the use of Micro and Nanoparticle Zinc Oxide in Personal Care Products based on Skin Penetration Studies

Casey P., Chau N., Finnin B., CSIRO (CMIT), AU

Nanoparticles of ZnO and TiO2 are increasingly being used as pigments and UV absorbers in personal care products (e.g. sunscreens), coatings and paints, predominantly because their UV absorbance efficiency and transparency to visible light increases [...]

Colloidal Structure-directing-agent-free Hydroxy-sodalite Nanocrystals

Yao J.F., Wang H.T., Monash University, AU

This presentation describes a unique approach to the synthesis of colloidal structure-directing-agent-free hydroxy-sodalite nanocrystals by using silicalite nanocrystals as a silica source.Under the aid of TPAOH molecules trapped in the dried silicalite nanocrystals, the silicalite [...]

Synthesis of Magnetic Nanoparticles Using Spinning Disc Processing

Smith N., Raston C.L., Saunders M., Woodward R., The University of Western Australia, AU

Traditional fluid based synthesis techniques for the production of nano-materials can have limitations in particle morphology and composition selectivity. Particle size distributions can be insufficiently narrow for a deterministic investigation into the factors affecting magnetic [...]

Expansion-Limited Nanocluster Growth in a Plume Formed by MHz-Pulse-Rate Laser Ablation

Rode A.V., Madsen N.R., Gamaly E.G., Luther-Davies B., The Australian National University, AU

Material parameters of a solid experience a dramatic change when cluster size becomes less than a certain critical value. Hence, one can control material properties through control over cluster size. Previously we have produced and [...]

Spin Glass Behaviour of Magnetic Carbon Nanoclusters

Rode A.V., Christy A.G., Madsen N.R., Gamaly E.G., Luther-Davies B., Arcon D., Zorko A., Jaglicic Z., The Australian National University, AU

Carbon nanoclusters produced by high-repetition-rate laser ablation of graphite and glassy carbon in Ar exhibits para- and ferromagnetic behavior up to 90 K, showing a narrow hysteresis curve with a coercive force Hc = 420 [...]

A MEMS Vertical Fringe Comb Capacitive Pressure Sensor for Biomedical Application

Shah K., Thumu H., Vibhute V., Singh J., Le H.P., Center of Telecommunication and Microelectronics, AU

This paper presents the design and implementation of a Micro Electromechanical Systems (MEMS) vertical fringe comb capacitive pressure sensor using Coventorware and Cadence SpectraRF Electronic Design Automation (EDA) tools. The pressure sensor is designed to [...]

Direct Patterning of Functional Materials via Atmospheric-Pressure Ion Deposition

Hamedinger T.E., Steindl T., Albering J., Rentenberger S., Saf R., Graz University of Technology, AU

Interest in thin films of functional organic materials has increased enormously in the past years because of various possible applications. Here we report an experimental setup for the processing of various organic materials into thin [...]