tutti johansson falk and axel steuwer
TRANSCRIPT
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Understand • Neuron interaction in the human
brain • How water freezes • Complex biological functions
CREATE • Artificial photosynthesis • New materials with tailored
functions • New ”biological” systems • Cheap and effective solar cells &
batteries • Self repairing and autonomous
systems
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+1000 users/year44 %from Sweden
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250 research project/yearArticle = “free” beamtime
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MAX IV inaugurated 21 June 2016
13:08:55
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15
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Making the invisible visible
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1. Fossil fish
2. Phase contrast cancer detection,
3. Arsenic pollution
4. Solar cells
5. Food waste, packaging, SAXS
6. Chocolatey Dessert
Agenda/Examples
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IR spectromicroscopy
Fossil Fish Fossil Fish Eye
Melanin (pigment)
beam
● Light absorption in IR is like a fingerprint of the molecules (characteristic vibrations)- Use it to image (microscopy)- Use it to identify molecules (spectroscopy)
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Phase Contrast Imaging
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Arsenic Pollution
“A 2007 study found that over 137 million people in more than 70 countries are probably affected by arsenic poisoning from drinking water.” Wikipedia
Many arsenic compounds are highly toxic, in particular arsine (AsH3), arsenite [AsO3]3- and arsenate, and although the sulfides and arsenides are less toxic due to their very low solubilities, chemical and biological oxidation processes can convert these to the more dangerous forms.
JS Charnok, et at, 2010
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Organic Solar Cells
Dr F Krebs, DTU
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Max IV & Tetra PackChecking alignment of nano-particles with small angle scattering
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Chocolatey
Fat bloom: At room temperature solid cocoa butter consists mainly of three mono-unsaturated triglycerides, 1,3-dipalmitoyl-2-oleoylglycerol (POP), 2-oleoyl-1-palmitoyl-3-stearoylglycerol (POS) and 1,3-distearoyl-2-oleoylglycerol (SOS). The latter triglyceride comprises ~25% of cocoa butter and is known to play a major role in the crystallisation of cocoa butter into the ß forms. Good quality single crystals of SOS are extremely difficult to obtain so we resorted to synchrotron powder diffraction as an alternative.
References [1] K.F. Van Malssen, A.J. Van Langevelde, R. Peschar, H. Schenk. Patent WO 01/06863 (2001).Principal Publications and Authors R. Peschar, M.M. Pop, D.J.A. De Ridder, J.B. Van Mechelen, R.A.J. Driessen, H. Schenk, J. Phys. Chem. B. 108(40), 15450-15453 (2004).Laboratory for Crystallography, HIMS, University of Amsterdam (The Netherlands)