Data sets for "Structural Investigation of Sulfobetaines and Phospholipid Monolayers at the air-water interface"

Normalized neutron and X-ray reflectivity data for Langmuir monolayers composed of mixtures of dimyristoylphosphatidylcholine, DMPC and a single 18-carbon tailed sulfobetaine, SB3-18 on pure water at room temperature and at surface pressures of 15 mN/m and 35 mN/m.

Neutron measurements are carried out on D2O and air contrast matched water. Measurements were carried out with deuterated and hydrogenated lipids.

Neutrons, X-Rays, Reflectivity, Phospholipids, sulfobetaines, Langmuir monolayes
Catalysis and surfaces
Tools, technologies and methods

Cite this dataset as:
Elstone, N., Edler, K., Arnold, T., Lewis, S., Skoda, M., Hazell, G., Li, P., 2022. Data sets for "Structural Investigation of Sulfobetaines and Phospholipid Monolayers at the air-water interface". Bath: University of Bath Research Data Archive. Available from:


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Creative Commons: Attribution 4.0

X-Ray and Neutron reflectivity data for mixtures of SB3-18 and DMPC on pure water at surface pressures of 15 and 35 mN/m. Data were collected at I07 at the Diamond light source and Inter at ISIS neutron and muon source


Naomi Elstone
University of Bath

Karen Edler
University of Bath

Thomas Arnold
European Spallation Source; Diamond Light Source Ltd; European Spallation Source ERIC; University of Bath; Rutherford Appleton Laboratory

Simon Lewis
University of Bath

Maximilian W. A. Skoda
ISIS Neutron and Muon source, STFC

Gavin Hazell
University of Chester

Peixun Li
ISIS Neutron and Muon source, STFC


University of Bath
Rights Holder

ISIS Neutron and Muon source, STFC
Data Collector

Diamond Light Source Ltd
Data Collector


Data collection method:

Neutron reflectivity measurements were carried out on Inter at the ISIS Pulsed Neutron and Muon source at room temperature. Mixtures of DMPC and SB3-18 were investigates on D2O and air contrast matched water, ACMW. Deuterated phospholipid and sulfobetaine were used along with hydrogenated samples. X-Ray reflectivity measurements were carried out on I07 at The Diamond Light Source. As above mixtures of DMPC and SB3-18 were carried out on a water subphase at room temperature under a helium atmosphere. For both data sets are carried out at two surface pressures, the surface pressure in both cases is controlled by a Nima Langmuir trough.

Data processing and preparation activities:

Neutron reflectivity data was stitched together and normalised using Mantid software. X-Ray reflectivity data was also normalised to the critical edge and by the incident flux at the Diamond light source.

Technical details and requirements:

Reflectivity data, here given as .dat files, can be fitted and plotted using a range of programs, the Motofit package for Igor Pro, the Motofit GUI or RASCAL are some examples.


Engineering and Physical Sciences Research Council (EPSRC)

EPSRC Doctoral Training Centre in Sustainable Chemical Technologies

Publication details

Publication date: 6 September 2022
by: University of Bath

Version: 1


URL for this record:

Related papers and books

Elstone, N., Arnold, T., Skoda, M. W. A., Lewis, S. E., Li, P., Hazell, G., and Edler, K. J., 2022. Structural investigation of sulfobetaines and phospholipid monolayers at the air–water interface. Physical Chemistry Chemical Physics, 24(37), 22679-22690. Available from:

Contact information

Please contact the Research Data Service in the first instance for all matters concerning this item.

Contact person: Karen Edler


Faculty of Science

Research Centres & Institutes
Centre for Sustainable and Circular Technologies (CSCT)