Tom Arnold


Tom Arnold is a Senior Beamline Scientist working on beamline I07 and a visiting Reader at the Department of Chemistry at the University of Bath.  Tom joined Diamond in 2006 after working at the University of Cambridge.

Tel: +44 (0) 1235 778543

Key Research Area

Other Specialist Areas

  • Neutron Scattering
  • Soft-matter
  • Surface Science

Latest Publications

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Research Expertise

  1. Research Expertise
  2. Collaborations
  3. Publications
  4. Biography
Research Expertise -

Current Research Interests

Image Current Research Interests

I am interested in the interfacial behaviour of a range of species from simple molecules to surfactants and more complex lipid & protein systems. Such systems are important to many areas of academic, medical and industrial importance and are well suited to the techniques available on I07. Using simplified systems and a combination of different techniques it is possible to obtain detailed information that can help us to understand the fundamental properties that govern behaviour.

One of my areas of research focuses on Styrene Maleic Acid Lipid Particles (SMALPs) and their interaction with surfaces. These particles provide a relatively new method to extract and purify Membrane Proteins, along with the local lipid bilayer proximal to the protein. Once solubilized in SMALPs, proteins can be studied in a variety of ways. My work has focussed on using a wide range of experimental techniques, particularly x-ray and neutron scattering, to investigate their physical properties and their interactions with and/or binding to surfaces.
Other projects include:
  • Use of a range of techniques to study the structure and dynamics of physisorbed molecules.
  • The behaviour of surfactants & lipids in ionic liquids & deep eutectic solvents.
  • Structural studies and characterisation of lipids, proteins and new & novel surfactants at different surfaces including air-liquid, liquid-liquid and solid-liquid interfaces.
On the beamline I principally provide support for users working in soft-matter research, with particular responsiblity for reflectometry and studies at liquid surfaces.
Collaborations - +


University of Bath
University of Birmingham
Deep Eutectic Solvents
University of Bath
European Spallation Source (ESS)
Physisorbed molecules
University of Tennessee



Publications - +
1. Sanchez-Fernandez, A., et al., Micelle structure in a deep eutectic solvent: a small-angle scattering study. Physical Chemistry Chemical Physics, 2016. 18: p. 14063 - 14073.
DOI: 10.1039/C6CP01757F
2. Sanchez-Fernandez, A., et al., Micellisation of alkyltrimethylammonium bromide surfactants in choline chloride: glycerol deep eutectic solvent. Physical Chemistry Chemical Physics, 2016. 18(48): p. 33240-33249.
DOI: 10.1039/C6CP06053F
3. Hazell, G., et al., Langmuir monolayers composed of single and double tail sulfobetaine lipids. Journal of Colloid and Interface Science, 2016. 474: p. 190-198.
DOI: 10.1016/j.jcis.2016.04.020
4. Hazell, G., et al., Evidence of Lipid Exchange in Styrene Maleic Acid Lipid Particle (SMALP) Nanodisc Systems. Langmuir, 2016. 32(45): p. 11845-11853.
DOI: 10.1021/acs.langmuir.6b02927
5. Forster, M., et al., The Mixing Behavior of Alkanes Adsorbed on Hexagonal Boron Nitride. The Journal of Physical Chemistry C, 2016.
DOI: 10.1021/acs.jpcc.6b0770
6. Cook, R.E., et al., Pentane Adsorbed on MgO(100) Surfaces: A Thermodynamic, Neutron, and Modeling Study. The Journal of Physical Chemistry C, 2015. 119(1): p. 332-339.
DOI: 10.1021/jp509129d
7. Arnold, T., et al., Surfactant Behavior of Sodium Dodecylsulfate in Deep Eutectic Solvent Choline Chloride/Urea. Langmuir, 2015. 31(47): p. 12894-12902.
DOI: 10.1021/acs.langmuir.5b02596
8. Arnold, T., et al., The Structure of Normal-Alkanes Adsorbed on Hexagonal-Boron Nitride. The Journal of Physical Chemistry C, 2014. 118(5): p. 2418-2428.
DOI: 10.1021/jp4063059
9. Clifton, L.A., et al., The role of protein hydrophobicity in thionin-phospholipid interactions: a comparison of alpha1 and alpha2-purothionin adsorbed anionic phospholipid monolayers. Physical chemistry chemical physics : PCCP, 2012. 14(39): p. 13569-79.
DOI: 10.1039/c2cp42029e
10. Arnold, T., et al., Implementation of a beam deflection system for studies of liquid interfaces on Beamline I07 at Diamond. Journal of Synchrotron Radiation, 2012. 19(3): p. 408-416.
DOI: 10.1107/S0909049512009272
11. Arnold, T. and S.M. Clarke, Diffraction from physisorbed layers. Current Opinion in Colloid and Interface Science, 2012. 17: p. 23-32.
DOI: 10.1016/j.cocis.2011.11.003
Biography - +


Tom Arnold received his D.Phil from the University of Oxford in 2002. Prior to joining Diamond he had post-doc experience at the University of Cambridge, Oak Ridge National Laboratory and the ISIS neutron scattering facility.