1 January (Tuesday), 11:00am, B83 Conference Room. Hosted by Stephen Holt Stella M Valenzuela University of Technology, Sydney "To be advised."
10 January (Thursday), 11:00am, B83 Conference Room. Hosted by Garry McIntyre Jacqueline Cole University of Cambridge "Photo-crystallography discovers optoelectronic applications"
24 January (Thursday), 11:00am, B83 Conference Room. Hosted by Robert Robinson Prof. Michael Loewenhaupt Technical University of Dresden, Germany "Coupling between Electronic and Lattice Degrees of Freedom in 4f-electron systems investigated by Inelastic Neutron Scattering"
5 February (Tuesday), 11:00am, B83 Conference Room. Hosted by Elliot Gilbert Andreas Michels University of Luxembourg "Magnetic SANS on bulk magnets"
14 February (Thursday), 11:00am, B83 Conference Room Hubert Chevreau Bragg Institute, ANSTO "Porous metal carboxylates: from synthesis of novels structures to functionalization"
Porous coordination polymers (PCPs), also named Metal Organic Frameworks (MOFs) are an emerging class of materials that are of interest to both academics and industry. In order to explore their potential in gas- and liquid separation and catalysis, researchers and industrials have been gathered in a common FP7 European Project named MACADEMIA. As part of it, this work is dedicated to the synthesis, characterisation and optimisation of news porous carboxylate materials.
A bibliographic part first introduces this novel class of porous materials and then focuses on iron-based PCPs chemistry.
Then a second part will deal with the synthesis optimisation and scale-up to laboratory scale of PCPs (MIL-88A, MIL-127, MIL-126), based on oxo-centered octahedral iron(III) trimers. The kinetic study of the case of MIL-127 is also presented.
The third part concerns the application of a new strategy that consists of the use of a mixture of two ligands with different symmetry. This strategy has led to two novels solids, named MIL-142 and MIL-143. Once again, iron cations have been chosen as metal blocks.
18 February (Monday), 11:00am, B83 Conference Room Bill David "TBA"
28 February (Thursday), 11:00am, B83 Conference Room. Hosted by Elliot Gilbert Stefan Salentinig University of Graz, Austria. "Lipid Digestion Studied by Scattering Methods"
The PDF version of this abstract, including figures, is located at http://www.ansto.gov.au/__data/assets/pdf_file/0004/64660/Salentinig-abstract-Ansto_2.pdf
Lipid Digestion Studied by Scattering Methods
Stefan Salentinig, and Otto Glatter
Institute of Chemistry, Colloids & Polymers, University of Graz, Austria.
Online in-vitro time-resolved small angle X-ray scattering (SAXS) measurements, polarized and depolarized dynamic light scattering (DDLS and DLS) and cryogenic transmission electron microscopy (cryo-TEM) experiments were used to study self-assembled structures and follow their transitions during the lipid digestion process under physiologically relevant conditions found in the human intestine.
The interfacial active pancreatic lipase-colipase complex adsorbs to the oil/water interface of the emulsified lipids. It then quantitatively hydrolyses the tri- and diglyceride to 2-monoglycerides and fatty acids as the final digestion products. Both products are amphiphilic under intestinal conditions and form a great variety of self-assembled structures, depending on composition and pH as shown in Figure 1. Colloidal structure formation was also studied as a function of bile-juice concentration and in presence of hydrophobic additives (e.g. Vitamin E).
Online in-vitro time-resolved SAXS on a laboratory instrument showed that the interior of the triglyceride emulsion particles self-assembled to oil continuous structures with increasing hydrophilicity of the interface with time of lipase action (see Figure 2).[1] For the first time it was possible to monitor the kinetics of lipid digestion as a function of colloidal structures formed during in-vitro digestion experiments carried out under physiologically relevant conditions.[2]
The formation of colloidal structures during digestion of dietary triglyceride lipids might be of great importance to guarantee the efficacy of bioactive, hydrophobic food components (e.g., hydrophobic vitamins, carotenoids). These colloids can help to overcome poor solubility and limited absorption due to the gastrointestinal barrier.
[1] Salentinig S., Sagalowicz L., Glatter O., Langmuir, 2010, 26, 11670-11679.
[2] Salentinig S., Sagalowicz L., Leser M.E., Tedeschi C., Glatter O., Soft Matter, 2011,7, 650-661.
This work was done in collaboration with the Nestlé Research Center Lausanne, Switzerland.
30 April (Tuesday), 2:00pm, B83 Conference Room Kevin Prince Elettra-Sincrotrone Trieste and Swinburne Uni. "Gas phase chemistry of bio molecules: synchrotron radiation studies, and prospects for Free Electron Lasers "
2 May (Thursday), 11:00am, B83 Conference Room Prof. Rudy Wenk University of California, Berkeley "Advances in quantitative texture analysis using neutron and synchrotron X-ray diffraction"
9 May (Thursday), 11:00am, B83 Conference Room Matteo Lusi Dept. Chemistry, New York University "Revising the Neutron-Normalization Method for hydrogen-bonded and hydrogen-hydrogen bonded structures"
16 May (Thursday), 11:00am, B83 Conference Room. Hosted by Shane Kennedy Jianli Wang Bragg Institute / University of Wollongong "Driving magnetostructural transitions in layered intermetallic compounds"
28 May (Tuesday), 11:00am, AINSE Theatre Mike James "Scientific Update from the Australian Synchrotron (Location: Discover Centre lecture room)"
11am to 12 noon
Tuesday 28th May 2013
B65 Lecture Theatre
Discover Centre (B65, near Cafeteria)
ANSTO
Scientific Update from the Australian Synchrotron
Professor Michael James
Australian Synchrotron, Clayton, Australia
Together, the Australian Synchrotron in Melbourne and the 20 MW OPAL research reactor in Sydney represent Australia's largest ever investment in scientific infrastructure. In isolation, each facility has hit its stride; with first generation beamlines completed and vibrant international user programs in place. Collectively, the use of neutrons and synchrotron light has aided the untangling of complex molecular and nanoscale problems.
The Australian Synchrotron has eight beamlines in routine scientific operation, with our 9th - the Imaging and Medical beamline currently being commissioned.
In this talk I will give a brief overview of the Australian Synchrotron; highlighting the different instrument capabilities, before presenting a wide-ranging set of recently published scientific studies that have used synchrotron radiation.
A diverse range of systems will be covered including areas of health, pharmaceuticals and medical research; nanotechnology; environmental science; food and nutrition; cultural heritage; earth sciences; advanced materials and new energy technologies.
6 June (Thursday), 11:00am, B83 Conference Room Naren Narayanan UNSW Canberra "18O isotope substitution on the multiferroic compound DyMnO3"
20 June (Thursday), 11:00am, B83 Conference Room. Hosted by Kathleen Wood Richard Mole ANSTO "Pelican looks to the future."
27 June (Thursday), 11:00am, B83 Conference Room. Hosted by Frank Klose Professor Ying-Hao Chu National Chiao Tung University, Taiwan "Strongly correlated electron systems on periodic BiFeO3 domain pattern."
8 August (Thursday), 11:00am, B83 Conference Room Helen MAYNARD-CASELY ANSTO "Exploring Jupiter’s icy moons with powder diffraction."
20 August (Tuesday), 10:30am, B83 Conference Room Yuntao Liu China Institute of Atomic Energy "Status of the China Advanced Research Reactor Project in Beijing, China."
20 August (Tuesday), 11:30am, B83 Conference Room Xiaolong Liu China Institute of Atomic Energy "Summary of the IAEA fellowship training on texture study on Kowari diffractometer"
22 August (Thursday), 11:00am, B83 Conference Room Wei Kong Pang ANSTO / Wollongong Uni. "Lithium Ion Battery, Synchrotron, and Neutron."
Currently, as the internal combustion engine is a major user of fossil fuel, consuming about 1/3 of annual total demand for energy, concern over global warming and air pollution becomes a serious issue. As an alternative energy source, battery has many advantages. With the high value of the energy content, lithium ion batteries have triggered the growth of the market of popular devices, such as mobile phones, laptop computers, and even electric vehicles, etc. Indeed, lithium ion batteries are today produced by millions of units per year. Meanwhile, demand on a better battery is always continuous and increasing. In order to make a better battery, all, including the battery design, the properties of the cathode and anode, the type and concentration of electrolyte used, the separator, etc. have to be optimized. In this big game, I study the cathodes and anodes, which form the spirits of a lithium ion battery with electrolyte. By integrating characterization by electrochemical measurement, synchrotron, and neutron techniques, I aim to obtain the deeper understanding of structure-property correlations of the cathode and anode materials in lithium ion batteries and the encountered phase evolution during charge-discharge cycling. Advance understanding made in the work hopefully serves as a basis and fundamental knowledge on designing novel electrode materials to meet the social demands.
29 August (Thursday), 11:00am, B83 Conference Room Mark Johnson Institut Laue-Langevin "Neutron scattering and numerical simulations at ILL."
5 September (Thursday), 11:00am, B83 Conference Room Sara Callori ANSTO "PbTiO3/SrRuO3: A ferroelectric superlattice with a novel dielectric component"
12 September (Thursday), 11:00am, B83 Conference Room Wei Kong Pang ANSTO / Wollongong Uni. "Lithium Ion Battery, Synchrotron, and Neutron."
16 September (Monday), 1:00pm, B83 Conference Room. Hosted by Lyndon Edwards Cev Noyan Columbia University, USA "First-principles diffraction modeling, and some examples from diffraction"
24 September (Tuesday), 11:00am, B83 Conference Room. Hosted by Frank Klose M.R. Fitzsimmons Los Alamos National Laboratory, Los Alamos New Mex "Role of neutron scattering in studies of emergent behavior of complex oxide heterostructures, emergence or materials science? "
10 October (Thursday), 11:00am, B83 Conference Room Dr. Gail N. Iles Instrument Res. – E11, Helmholtz-Zentrum Berlin "Structure of CZTS Compounds Imaged by Laue Diffraction"
17 October (Thursday), 11:00am, B83 Conference Room Sandra Piazolo Macquarie University "To Dynamics of ice mass deformation: Linking processes to rheology, texture and microstructure"
21 October (Monday), 11:00am, B83 Conference Room David Cortie ANSTO Bragg institute "Final PhD seminar: Magnetic exchange springs and spiral structures in nanomagnetic thin films detected with neutron scattering techniques."
31 October (Thursday), 11:00am, B83 Conference Room Marta Martina-Sanz "Cellulose nanowhiskers to enhance the properties of food packaging materials"
7 November (Thursday), 11:00am, AINSE Theatre NA "No Bragg Seminar Distinguished lecture series at AINSE theatre"
14 November (Thursday), 11:00am, B3, upstairs seminar room Xun-Li Wang Department of Physics & Materials Science, Kowloon "Structural origin of the inhomogeneous deformation in bulk metallic glasses Note the seminar is in B3, upstairs seminar room"
21 November (Thursday), 11:00am, B83 Conference Room Andrew Wildes Institut Laue Langevin "The magnetic structure and dynamics of the MPS3 family (M=Mn, Fe, Co, Ni)"
28 November (Thursday), 11:00am, B83 Conference Room Evvy KARTINI National Nuclear Energy Agency, Indonesia "R&D of Lithium Phosphate Superionic Conductor for Solid Electrolyte in Rechargeable Batteries"
5 December (Thursday), 11:00am, B83 Conference Room Chung-Ming Wu, Nageshwar Yepuri, Jonathan McGree-G "Bragg Clip Session - Chun-Ming Wu, Nageshwar Yepuri, Jonathan McCree-Greey"
12 December (Thursday), 11:00am, B83 Conference Room Marie-Helene Lemee-Cailleau Institut Laue Langevin "Phase transitions movies via multi-structure determinations Example of Spin-Crossover molecular material"
19 December (Thursday), 10:30am, B83 Conference Room Vladimir Gubala University of Kent "‘Surface Chemistry: From biomedical devices to drug delivery systems.'"
