UK – Page 27 – TechConnect Briefs

Spinning science: The commercialisation of nanotech and financial news

Ebeling M.F.E., Cooper G., University of Surrey, UK

As nanotechnology’s risks and benefits continue to be debated in both specialist science and popular media, there has been a call for more social scientists to examine public perceptions, understandings and involvement in the governance [...]

Nano-Engineering Of Magnetic Particles For Biocatalysis And Bioseparation

Yu C.H., Lo C.C.H., Yeung C.M.Y., Tam K., Tsang S.C., University of Reading, UK

Magnetic nanoparticles encapsulated in a thin coating as magnetic separable nano-vehicle for chemical species is a hot but challenging area. The stability of the small magnetic body remains a key issue. In this meeting, we [...]

Tailoring FePt-Fe3O4 exchange spring coupling magnet in silica

Yu C.H., Lo C.C.H., Tam K.Y., Tsang S.C., University of Reading, UK

We report the optimization of exchange spring coupling ofFePt/Fe3Pt nanocomposites via independently tuning their size and composition by a micro-emulsion method. These nanocomposites are deliberately placed in each silicanano-spheres such that the problem of their [...]

Hydroxyapatite Nanoparticle Synthesis and In-Vitro Study of Dentinal Tubule Occlusion

Earl J., Wood D., Milne S.J., University of Leeds, UK

Dental hypersensitivity is a problem for large sectors of the population. The problem is caused by the movement of fluid within tiny channels, called tubules, which radiate from the pulp to the surface of the [...]

Silver Nanoparticles for the Simultaneous Raman Detection of Anions, Cations and Neutral Molecules

Sirimuthu N.M.S., Bell S.E.J., Innovative Molecular Materials Group,Queen’s University, UK

Citrate-reduced silver colloids are used extensively for SERS (surface-enhanced Raman spectroscopy) detection of low concentrations of cations but are typically ineffective for detection of anions, since the metal surface bears a negatively charged citrate layer. [...]

Synthesis and Characterization of Magnetorheological Fluids with Super Paramagnetic Nanomaterials in Polymeric Matrix

Kancharla V., Fahmi A., Liu Q., Gindy N., University of Nottingham, UK

Magneto-rheological (MR) fluids represent an exciting family of smart materials that have the unique ability to undergo rapid (within a few µs) changes in their apparent viscosity on the application of an external magnetic field. [...]

Advancements in the Supercritical Water Hydrothermal Synthesis (scWHS) of Metal Oxide Nanoparticles

Lester E., Blood P., Li J., Poliakoff M., University of Nottingham, UK

Supercritical Water Hydrothermal Synthesis (scWHS) is a relatively simple and environmentally friendly process for the production of potentially valuable metal oxide nanoparticles. This paper presents the conclusions of collaborative work between chemical engineers and chemists [...]

Vibration damping/dynamic properties of CNT-reinforced composite structures

Kireitseu M.V., Rolls-Royce Centre in Damping, the University of Sheffield, UK, UK

Energy dissipation (damping) in structures/materials is important as it reduces resonant amplitudes/noise levels giving enhanced integrity and life cycle behavior. If we then go to the nanoscale, the damping levels/dynamics of materials are mostly unknown [...]

Ultrafine Carbon Nitride Nanocrystals Synthesized by Laser Ablation in Liquid Solution

Yang L., May P.W., Smith J.A., Yin L., University of Bristol, UK

Crystalline carbon nitride nanopowders and nanorods have been successfully synthesized at room temperature and pressure using the novel technique of pulsed laser ablation of a graphite target in liquid ammonia solution.The experimental composition and structure [...]

CMOS Compatability of Carbon Nanotubes on SOI Devices

Haque M.S., Oei S.P., Teo K.B.K., Udrea F., Gardner J.W., Milne W.I., Cambridge University Engineering Department, UK

This paper reports for the first time PECVD and CVD growth of MWNTs both aligned and non aligned on high temperature partially depleted CMOS SOI substrates. We also report for the first time the growth [...]