ISIS Neutron and Muon Source Data Journal

Water dynamics on the surface of iron oxide nanoparticles stabilized with lactic acid

Abstract: Iron oxide nanoparticles (IONPs) are applied in various fields ranging from biomedicine to catalysis. Despite much progress in the structural characterization of NPs, experimental insight into the structure and dynamics of interfaces is still rare. Our previous QENS experiments show that the combination of energy-resolved spectra and fixed window scans can yield simultaneous information about the dynamics of the citrate molecules grafted on the IONPs surface next to surface water. We determined that surface water molecules diffuse translationally in the case of 7 nm IONPs with a 17 wt.% of citrate, while surface-bound citrate ligands rotate continuously. With this proposal, we aim to investigate diffusion modes for water molecules on surface of lactic acid capped IONPs. This new data will allow us to get a more complete picture of IONP/water interface.

Principal Investigator: Professor Mirijam Zobel
Experimenter: Mr Evgenii Batalov
Experimenter: Dr Maksim Plekhanov
Local Contact: Dr Mona Sarter
Experimenter: Mr Matei Pascariu
Experimenter: Mr Johannes Spiegel
Experimenter: Dr Florian Gehlhaar

DOI: 10.5286/ISIS.E.RB2510400

ISIS Experiment Number: RB2510400

Publisher: STFC ISIS Neutron and Muon Source

Data format: RAW/Nexus
Select the data format above to find out more about it.

Data Citation

The recommended format for citing this dataset in a research publication is as:
[author], [date], [title], [publisher], [doi]

For Example:
Professor Mirijam Zobel et al; (2026): Water dynamics on the surface of iron oxide nanoparticles stabilized with lactic acid, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2510400

Data is released under the CC-BY-4.0 license.