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Tutti Johansson Falk and Axel Steuwer

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Page 1: Tutti Johansson Falk and Axel Steuwer
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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

Page 5: Tutti Johansson Falk and Axel Steuwer

+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)