Articles | Volume 21, issue 19
https://doi.org/10.5194/acp-21-15003-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-21-15003-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
08 Oct 2021
Research article |
| 08 Oct 2021
| 08 Oct 2021
An organic crystalline state in ageing atmospheric aerosol proxies: spatially resolved structural changes in levitated fatty acid particles
Adam Milsom
School of Geography, Earth and
Environmental Sciences, University of Birmingham, Edgbaston, B15 2TT, Birmingham, UK
Adam M. Squires
Department of Chemistry, University of Bath, South Building,
Soldier Down Ln, Claverton Down, BA2 7AX, Bath, UK
Jacob A. Boswell
Department of Chemistry, University of Bath, South Building,
Soldier Down Ln, Claverton Down, BA2 7AX, Bath, UK
Nicholas J. Terrill
Diamond Light Source, Diamond House, Harwell Science and Innovation
Campus, OX11 0DE, Didcot, UK
Andrew D. Ward
Central Laser Facility, Rutherford Appleton Laboratory, Harwell
Campus, OX11 0QX, Didcot, UK
School of Geography, Earth and
Environmental Sciences, University of Birmingham, Edgbaston, B15 2TT, Birmingham, UK
Department of Meteorology, University of Reading, Whiteknights,
Earley Gate, RG6 6BB, Reading, UK
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Cited
21 citations as recorded by crossref.
- Acoustic levitation with polarising optical microscopy (AL-POM): water uptake in a nanostructured atmospheric aerosol proxy A. Milsom et al. https://doi.org/10.1039/D3EA00083D
- MultilayerPy (v1.0): a Python-based framework for building, running and optimising kinetic multi-layer models of aerosols and films A. Milsom et al. https://doi.org/10.5194/gmd-15-7139-2022
- The evolution of surface structure during simulated atmospheric ageing of nano-scale coatings of an organic surfactant aerosol proxy A. Milsom et al. https://doi.org/10.1039/D2EA00011C
- Emerging investigator series: surfactants, films, and coatings on atmospheric aerosol particles: a review K. Wokosin et al. https://doi.org/10.1039/D2EA00003B
- Technical note: In situ measurements and modelling of the oxidation kinetics in films of a cooking aerosol proxy using a quartz crystal microbalance with dissipation monitoring (QCM-D) A. Milsom et al. https://doi.org/10.5194/acp-23-10835-2023
- Single-particle Raman spectroscopy for studying physical and chemical processes of atmospheric particles Z. Liang et al. https://doi.org/10.5194/acp-22-3017-2022
- The impact of molecular self-organisation on the atmospheric fate of a cooking aerosol proxy A. Milsom et al. https://doi.org/10.5194/acp-22-4895-2022
- The influence of saturation on the surface structure of mixed fatty acid-on-water aerosol: a molecular dynamics study A. Stewart et al. https://doi.org/10.1039/D2EA00089J
- Acoustic levitation combined with laboratory-based small-angle X-ray scattering (SAXS) to probe changes in crystallinity and molecular organisation A. Milsom et al. https://doi.org/10.1039/D4RA01418A
- Photooxidation of Nonanoic Acid by Molecular and Complex Environmental Photosensitizers G. Freeman-Gallant et al. https://doi.org/10.1021/acs.jpca.4c05608
- Possible Effects of Ozone Chemistry on the Phase Behavior of Skin Oil and Cooking Oil Films and Particles Indoors S. Xu et al. https://doi.org/10.1021/acsearthspacechem.2c00092
- Polymer and Soft Matter Research at Diamond Light Source N. Terrill et al. https://doi.org/10.1080/08940886.2023.2207456
- Exploring the Nanostructures Accessible to an Organic Surfactant Atmospheric Aerosol Proxy A. Milsom et al. https://doi.org/10.1021/acs.jpca.2c04611
- Surprising Crystallinity of Biomass Burning Secondary Organic Aerosol from Catechol and Nitrate Radical Reactions: Evidence and Possible Implications F. Mahrt et al. https://doi.org/10.1021/acs.est.5c06834
- Hybrid Coatings for Active Protection against Corrosion of Mg and Its Alloys A. Gnedenkov et al. https://doi.org/10.3390/polym15143035
- Molecular composition of clouds: a comparison between samples collected at tropical (Réunion Island, France) and mid-north (Puy de Dôme, France) latitudes L. Pailler et al. https://doi.org/10.5194/acp-24-5567-2024
- Molecular Self-Organization in Surfactant Atmospheric Aerosol Proxies A. Milsom et al. https://doi.org/10.1021/acs.accounts.3c00194
- Acoustic levitation of pollen and visualisation of hygroscopic behaviour S. Mills et al. https://doi.org/10.5194/amt-16-4885-2023
- Micro- and milli-fluidic sample environments for in situ X-ray analysis in the chemical and materials sciences M. Levenstein et al. https://doi.org/10.1039/D4LC00637B
- In Situ Sol–Gel Synthesis of Unique Silica Structures Using Airborne Assembly: Implications for In-Air Reactive Manufacturing C. Barker et al. https://doi.org/10.1021/acsanm.2c02683
- Night-time oxidation at the air–water interface: co-surfactant effects in binary mixtures F. Sebastiani et al. https://doi.org/10.1039/D2EA00056C
21 citations as recorded by crossref.
- Acoustic levitation with polarising optical microscopy (AL-POM): water uptake in a nanostructured atmospheric aerosol proxy A. Milsom et al. https://doi.org/10.1039/D3EA00083D
- MultilayerPy (v1.0): a Python-based framework for building, running and optimising kinetic multi-layer models of aerosols and films A. Milsom et al. https://doi.org/10.5194/gmd-15-7139-2022
- The evolution of surface structure during simulated atmospheric ageing of nano-scale coatings of an organic surfactant aerosol proxy A. Milsom et al. https://doi.org/10.1039/D2EA00011C
- Emerging investigator series: surfactants, films, and coatings on atmospheric aerosol particles: a review K. Wokosin et al. https://doi.org/10.1039/D2EA00003B
- Technical note: In situ measurements and modelling of the oxidation kinetics in films of a cooking aerosol proxy using a quartz crystal microbalance with dissipation monitoring (QCM-D) A. Milsom et al. https://doi.org/10.5194/acp-23-10835-2023
- Single-particle Raman spectroscopy for studying physical and chemical processes of atmospheric particles Z. Liang et al. https://doi.org/10.5194/acp-22-3017-2022
- The impact of molecular self-organisation on the atmospheric fate of a cooking aerosol proxy A. Milsom et al. https://doi.org/10.5194/acp-22-4895-2022
- The influence of saturation on the surface structure of mixed fatty acid-on-water aerosol: a molecular dynamics study A. Stewart et al. https://doi.org/10.1039/D2EA00089J
- Acoustic levitation combined with laboratory-based small-angle X-ray scattering (SAXS) to probe changes in crystallinity and molecular organisation A. Milsom et al. https://doi.org/10.1039/D4RA01418A
- Photooxidation of Nonanoic Acid by Molecular and Complex Environmental Photosensitizers G. Freeman-Gallant et al. https://doi.org/10.1021/acs.jpca.4c05608
- Possible Effects of Ozone Chemistry on the Phase Behavior of Skin Oil and Cooking Oil Films and Particles Indoors S. Xu et al. https://doi.org/10.1021/acsearthspacechem.2c00092
- Polymer and Soft Matter Research at Diamond Light Source N. Terrill et al. https://doi.org/10.1080/08940886.2023.2207456
- Exploring the Nanostructures Accessible to an Organic Surfactant Atmospheric Aerosol Proxy A. Milsom et al. https://doi.org/10.1021/acs.jpca.2c04611
- Surprising Crystallinity of Biomass Burning Secondary Organic Aerosol from Catechol and Nitrate Radical Reactions: Evidence and Possible Implications F. Mahrt et al. https://doi.org/10.1021/acs.est.5c06834
- Hybrid Coatings for Active Protection against Corrosion of Mg and Its Alloys A. Gnedenkov et al. https://doi.org/10.3390/polym15143035
- Molecular composition of clouds: a comparison between samples collected at tropical (Réunion Island, France) and mid-north (Puy de Dôme, France) latitudes L. Pailler et al. https://doi.org/10.5194/acp-24-5567-2024
- Molecular Self-Organization in Surfactant Atmospheric Aerosol Proxies A. Milsom et al. https://doi.org/10.1021/acs.accounts.3c00194
- Acoustic levitation of pollen and visualisation of hygroscopic behaviour S. Mills et al. https://doi.org/10.5194/amt-16-4885-2023
- Micro- and milli-fluidic sample environments for in situ X-ray analysis in the chemical and materials sciences M. Levenstein et al. https://doi.org/10.1039/D4LC00637B
- In Situ Sol–Gel Synthesis of Unique Silica Structures Using Airborne Assembly: Implications for In-Air Reactive Manufacturing C. Barker et al. https://doi.org/10.1021/acsanm.2c02683
- Night-time oxidation at the air–water interface: co-surfactant effects in binary mixtures F. Sebastiani et al. https://doi.org/10.1039/D2EA00056C
Saved (final revised paper)
Latest update: 02 Aug 2026
Short summary
Atmospheric aerosols can be solid, semi-solid or liquid. This phase state may impact key aerosol processes such as oxidation and water uptake, affecting cloud droplet formation and urban air pollution. We have observed a solid crystalline organic phase in a levitated proxy for cooking emissions, oleic acid. Spatially resolved structural changes were followed during ageing by X-ray scattering, revealing phase gradients, aggregate products and a markedly reduced ozonolysis reaction rate.
Atmospheric aerosols can be solid, semi-solid or liquid. This phase state may impact key aerosol...
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