ISIS Neutron and Muon Source Data Journal
This is a page describing data taken during an experiment at the ISIS Neutron and Muon Source. Information about the ISIS Neutron and Muon Source can be found at https://www.isis.stfc.ac.uk.
Probing the location of light-responsive silica particles at air-liquid interface using neutron reflectometry
Abstract: The possibility to break on demand a stable emulsion is pivotal for their formulations in many industrial applications. In contrast to classical Pickering emulsions, these smart emulsions responds to changes in their environment. Recently, we develop an innovative light- responsive water-in-oil (w/o) Pickering system based on azobenzene-modified silica particles as the stabiliser. A key aspect that must be known is where the particle sits in the interface. This will allow us to predict a-priori which kind of emulsion (oil-in-water or vice-versa) and how stable it will be. Since the particle adsorption, packing and its position with respect to the interface depends on the irradiation light, it is essential to probe it in-situ. This makes most of the available techniques not suitable since they all request the deposition and treatment of the particles. Here we propose to use neutron reflectometry to access the particle position at air-water and air-oil interface using the Langmuir trough environment. We will perform measurements at different contrasts and fit the data with model based on a combination of slabs, Gaussian and Log-normal curves.
Principal Investigator: Professor Rachel Evans
Experimenter: Miss Maria Novoselova
Local Contact: Dr Arwel Hughes
Experimenter: Dr Beatrice Jones
Experimenter: Dr Andrea Scotti
Experimenter: Mr Jack Avery
Experimenter: Dr Maxmilian Skoda
DOI: 10.5286/ISIS.E.RB2510404
ISIS Experiment Number: RB2510404
| Part DOI | Instrument | Public release date | Download Link |
|---|---|---|---|
| 10.5286/ISIS.E.RB2510404-1 | INTER | 06 August 2028 | Download |
Publisher: STFC ISIS Neutron and Muon Source
Data format: RAW/Nexus
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Data Citation
The recommended format for citing this dataset in a research
publication is as:
[author], [date], [title], [publisher],
[doi]
For Example:
Professor Rachel Evans et al; (2025): Probing the location of light-responsive silica particles at air-liquid interface using neutron reflectometry, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2510404
Data is released under the CC-BY-4.0 license.
