T1 - Biotemplated synthesis of PZT nanowires

Current research covers aspects of clean technology which are directed towards the major challenges facing humanity in the 21st Century - in being able to gain accessto complex functional molecules and materials for tackling energy, health andenvironmental issues. This includes: (i) The use of patented thin film microfluidicsin controlling chemical reactivity and selectivity in organic and inorganic synthesis,controlling self assemble processes from small molecules to viruses,controlling kinetic versus thermodynamic metal organic frameworks (MOFs), controlling'top down' and 'bottom up' synthesis of nano-materials, and fabricating singlecell algal-graphene hybrid material for waste water treatment. (ii) Solar celltechnology based on the frustules of single cell diatoms. (iii) Utilisation ofbiomass in developing processes and products without generating waste. (iv)Applications of the compounds and materials in (i) - (iii), for example indevice technology, drug delivery and drug development, and waste watertreatment.

T1 - Synthesis of metallic ReO3 nanowires

N2 - In natural tooth enamel, fluoride is always present in the carbonated hydroxyapatite mineral and plays a key role in the prevention of tooth decay. In this study we aimed at mimicking the natural anticaries ability of the tooth by developing new, effective anticaries materials using fluorapatite nanorods or nanowires. We therefore investigated the conditions necessary to synthesize fluorapatite nanorods of different size, shape, and composition for future use either directly or indirectly, that is by incorporation into dental materials or in the treatment and prevention of caries. By controlling the chemical conditions, nanorods of desirable chemical composition and dimension were produced. The mechanism of how these structures were formed is also proposed.


In addition, Au nanowires are used in the fabrication of gas sensors.

The thermal stability of Au nanowires was investigated by thermogravimetric analysis (TGA).

AB - In natural tooth enamel, fluoride is always present in the carbonated hydroxyapatite mineral and plays a key role in the prevention of tooth decay. In this study we aimed at mimicking the natural anticaries ability of the tooth by developing new, effective anticaries materials using fluorapatite nanorods or nanowires. We therefore investigated the conditions necessary to synthesize fluorapatite nanorods of different size, shape, and composition for future use either directly or indirectly, that is by incorporation into dental materials or in the treatment and prevention of caries. By controlling the chemical conditions, nanorods of desirable chemical composition and dimension were produced. The mechanism of how these structures were formed is also proposed.


Synthesis and mechanism study of Au nanowires and …

To understand the dynamics of charge carriers in semiconductor nanostructures, we have partnered with the Papanikolas group to probe the basic drift, diffusion, and recombination processes in single structures using ultrafast microscopy. The Papanikolas group has developed spatially-separated pump-probe (SSPP) microscopy, a new technique which enables diffraction-limited of charge carriers in space and time. Shown to the right is an SSPP time-resolved movie of charge carriers in a single silicon nanowire. At time zero, the image shows a diffraction-limited region of charge carriers. The charge carriers diffuse and recombine on a picosecond time scale, causing broadening and decay of the signal amplitude. The experiment provides direct information of the trap-state density and surface recombination velocity in semiconductor nanostructures such as silicon nanowires.

Syntheses of Silver Nanowires in Liquid Phase | …

X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), FT-IR, UV-Vis, 1 H-NMR spectroscopies, elemental analysis, scanning electron microscopy (SEM) and transmission electron microscopy (TEM) were performed for the structural characterization of Au nanowires.

Sonochemical synthesis of Au nanowires in the ..

To induce a super-saturated states for the Au particle catalyst and Au molecules during the Au nanowire synthesis, thickness of the Au catalyst thin film was fixed to 10 nm or 20 nm.