Imaging of pH distribution inside individual microdroplet by stimulated Raman microscopy

K Gong, J Ao, K Li, L Liu, Y Liu, G Xu… - Proceedings of the …, 2023 - National Acad Sciences
Aerosol microdroplets as microreactors for many important atmospheric reactions are
ubiquitous in the atmosphere. pH largely regulates the chemical processes within them; …

Kinetics and Products of Heterogeneous Hydroxyl Radical Oxidation of Isoprene Epoxydiol-Derived Secondary Organic Aerosol

J Yan, Y Zhang, Y Chen, NC Armstrong… - ACS Earth and Space …, 2023 - ACS Publications
Heterogeneous hydroxyl radical (• OH) oxidation is an important aging process for isoprene
epoxydiol-derived secondary organic aerosol (IEPOX-SOA) that alters its chemical …

Organosulfate formation in proxies for aged sea spray aerosol: Reactive uptake of isoprene epoxydiols to acidic sodium sulfate

ME Cooke, NC Armstrong, Z Lei, Y Chen… - ACS Earth and Space …, 2022 - ACS Publications
Oxidation of isoprene, the biogenic volatile organic compound (BVOC) with the highest
emissions globally, is a large source of secondary organic aerosol (SOA) in the atmosphere …

Size-resolved light-absorbing organic carbon and organic molecular markers in Nan**g, east China: Seasonal variations and sources

W Feng, Z Shao, Q Wang, M **e - Environmental Pollution, 2023 - Elsevier
Owing to the potential influence of light-absorbing organic carbon (OC), also termed “brown
carbon”(BrC), on the planetary radiation budget, many studies have focused on its …

Effect of acidity on ice nucleation by inorganic–organic mixed droplets

Z Lei, B Chen, SD Brooks - ACS Earth and Space Chemistry, 2023 - ACS Publications
Aerosol acidity significantly influences heterogeneous chemical reactions and human
health. Additionally, acidity may play a role in cloud formation by modifying the ice …

Decreases in Epoxide-Driven Secondary Organic Aerosol Production under Highly Acidic Conditions: The Importance of Acid–Base Equilibria

ME Cooke, NC Armstrong… - Environmental …, 2024 - ACS Publications
Isoprene has the highest atmospheric emissions of any nonmethane hydrocarbon, and
isoprene epoxydiols (IEPOX) are well-established oxidation products and the primary …

Atmospheric Aerosol Sulfur Distribution and Speciation in Mexico City: Sulfate, Organosulfates, and Isoprene-Derived Secondary Organic Aerosol from Low NO …

ME Cooke, CM Waters, JY Asare, JA Mirrielees… - ACS ES&T …, 2024 - ACS Publications
Poor air quality is a persistent challenge in Mexico City, and addressing this issue requires
an understanding of the chemical composition of PM2. 5 (particulate matter less than 2.5 μm …

Microfluidic platform for coupled studies of freezing behavior and final effloresced particle morphology in Snomax® containing aqueous droplets

ML House, CS Dutcher - Aerosol Science and Technology, 2024 - Taylor & Francis
Aerosol physicochemical mixing state, defined as the chemical, phase, and internal structure
of a population of aerosols, is complex and under-characterized regarding its role in the …

Atmospheric oxidation of 1, 3-butadiene: influence of seed aerosol acidity and relative humidity on SOA composition and the production of air toxic compounds

M Jaoui, K Nestorowicz, KJ Rudzinski… - Atmospheric …, 2025 - acp.copernicus.org
This study investigated the effect of relative humidity (RH) on the chemical composition of
gas and particle phases formed from the photooxidation of 1, 3-butadiene (13BD) in the …

pH regulates the formation of organosulfates and inorganic sulfate from organic peroxide reaction with dissolved SO in aquatic media

L Du, X Lv, M Lily, K Li… - … Chemistry and Physics, 2024 - acp.copernicus.org
Organic peroxides (OPs) are an important component of dissolved organic matter (DOM),
detected in various aquatic media. Despite their unique functions as redox agents in water …