Articles | Volume 23, issue 9
https://doi.org/10.5194/acp-23-5393-2023
https://doi.org/10.5194/acp-23-5393-2023
Research article
 | 
12 May 2023
Research article |  | 12 May 2023

Photo-induced shrinking of aqueous glycine aerosol droplets

Shinnosuke Ishizuka, Oliver Reich, Grégory David, and Ruth Signorell

Related subject area

Subject: Aerosols | Research Activity: Laboratory Studies | Altitude Range: Troposphere | Science Focus: Chemistry (chemical composition and reactions)
Sulfate formation via aerosol-phase SO2 oxidation by model biomass burning photosensitizers: 3,4-dimethoxybenzaldehyde, vanillin and syringaldehyde using single-particle mixing-state analysis
Liyuan Zhou, Zhancong Liang, Beatrix Rosette Go Mabato, Rosemarie Ann Infante Cuevas, Rongzhi Tang, Mei Li, Chunlei Cheng, and Chak K. Chan
Atmos. Chem. Phys., 23, 5251–5261, https://doi.org/10.5194/acp-23-5251-2023,https://doi.org/10.5194/acp-23-5251-2023, 2023
Short summary
Yields and molecular composition of gas-phase and secondary organic aerosol from the photooxidation of the volatile consumer product benzyl alcohol: formation of highly oxygenated and hydroxy nitro-aromatic compounds
Mohammed Jaoui, Kenneth S. Docherty, Michael Lewandowski, and Tadeusz E. Kleindienst
Atmos. Chem. Phys., 23, 4637–4661, https://doi.org/10.5194/acp-23-4637-2023,https://doi.org/10.5194/acp-23-4637-2023, 2023
Short summary
A combined gas- and particle-phase analysis of highly oxygenated organic molecules (HOMs) from α-pinene ozonolysis
Jian Zhao, Ella Häkkinen, Frans Graeffe, Jordan E. Krechmer, Manjula R. Canagaratna, Douglas R. Worsnop, Juha Kangasluoma, and Mikael Ehn
Atmos. Chem. Phys., 23, 3707–3730, https://doi.org/10.5194/acp-23-3707-2023,https://doi.org/10.5194/acp-23-3707-2023, 2023
Short summary
Comparison of aqueous secondary organic aerosol (aqSOA) product distributions from guaiacol oxidation by non-phenolic and phenolic methoxybenzaldehydes as photosensitizers in the absence and presence of ammonium nitrate
Beatrix Rosette Go Mabato, Yong Jie Li, Dan Dan Huang, Yalin Wang, and Chak K. Chan
Atmos. Chem. Phys., 23, 2859–2875, https://doi.org/10.5194/acp-23-2859-2023,https://doi.org/10.5194/acp-23-2859-2023, 2023
Short summary
Technical note: Chemical composition and source identification of fluorescent components in atmospheric water-soluble brown carbon by excitation–emission matrix spectroscopy with parallel factor analysis – potential limitations and applications
Tao Cao, Meiju Li, Cuncun Xu, Jianzhong Song, Xingjun Fan, Jun Li, Wanglu Jia, and Ping'an Peng
Atmos. Chem. Phys., 23, 2613–2625, https://doi.org/10.5194/acp-23-2613-2023,https://doi.org/10.5194/acp-23-2613-2023, 2023
Short summary

Cited articles

Alexander, A. J. and Camp, P. J.: Non-photochemical laser-induced nucleation, J. Chem. Phys., 150, 040901, https://doi.org/10.1063/1.5079328, 2019. 
Altaf, M. B., Zuend, A., and Freedman, M. A.: Role of nucleation mechanism on the size dependent morphology of organic aerosol, Chem. Commun., 52, 9220–9223, 2016. 
Arnstein, H.: The metabolism of glycine, Adv. Protein Chem., 9, 1–91, 1954. 
Ashkin, A.: Optical trapping and manipulation of neutral particles using lasers, P. Natl. Acad. Sci. USA, 94, 4853–4860, 1997. 
Bain, R. M., Sathyamoorthi, S., and Zare, R. N.: “On – droplet” chemistry: the cycloaddition of diethyl azodicarboxylate and quadricyclane, Angew. Chem., 129, 15279–15283, 2017. 
Download
Short summary
Photosensitizers play an important role in the photochemistry of atmospheric aerosols. Our study provides evidence that mesoscopic glycine clusters forming in aqueous droplets act as unconventional photosensitizers in the visible light spectrum. We observed the influence of these photoactive molecular aggregates in single optically trapped aqueous droplets. Such mesoscopic photosensitizers might be more important for aerosol photochemistry than previously anticipated.
Altmetrics
Final-revised paper
Preprint