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.
Particle-Stabilized Emulsions: Relating contact angle to hydrophobicity using water freezing temperature and diffusion coefficient values.
Abstract: Many foods are emulsions that have very large interfacial areas between oil and water, and subsequently prone to chemical deterioration caused by oxidation. Therefore, new technologies with optimal design of the oil-water interface are crucial to ensure optimal food processing, quality and safety. Pickering-stabilized micro-antibubbles can be produced by first making a particle-stabilized water-in-oil-in-water (W/O/W) emulsion and then remove the water and oil by freeze-drying the W/O/W emulsion. It is well known that the structure of water is perturbed heavily near surfaces which have the potential to affect water diffusion. There is a clear relationship between the variation of the diffusion coefficient Dt and surface wettability. By using quasielastic neutron scattering (QENS), we will obtain information about proton self-diffusion, while inelastic neutron scattering (INS) will be used to gather knowledge of collective density fluctuations. Combining these results will allow us to predict the wettability and give an insight on the water?s adhesion energy on Pickering-stabilized micro-antibubbles where the water contact angle cannot be measured.
Principal Investigator: Professor Heloisa Nunes Bordallo
Experimenter: Mr Charalampos Tsekeridis
Local Contact: Dr Svemir Rudic
Experimenter: Ms Yiran Jin
DOI: 10.5286/ISIS.E.RB2310359
ISIS Experiment Number: RB2310359
Part DOI | Instrument | Public release date | Download Link |
---|---|---|---|
10.5286/ISIS.E.RB2310359-1 | TOSCA | 12 March 2027 | Download |
Publisher: STFC ISIS Neutron and Muon Source
Data format: RAW/Nexus
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Data Citation
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publication is as:
[author], [date], [title], [publisher],
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Professor Heloisa Nunes Bordallo et al; (2024): Particle-Stabilized Emulsions: Relating contact angle to hydrophobicity using water freezing temperature and diffusion coefficient values., STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2310359
Data is released under the CC-BY-4.0 license.