Articles | Volume 16, issue 15
Atmos. Chem. Phys., 16, 9761–9769, 2016
https://doi.org/10.5194/acp-16-9761-2016
Atmos. Chem. Phys., 16, 9761–9769, 2016
https://doi.org/10.5194/acp-16-9761-2016

Research article 03 Aug 2016

Research article | 03 Aug 2016

A method for the direct measurement of surface tension of collected atmospherically relevant aerosol particles using atomic force microscopy

Andrew D. Hritz et al.

Related subject area

Subject: Aerosols | Research Activity: Laboratory Studies | Altitude Range: Troposphere | Science Focus: Physics (physical properties and processes)
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Cited articles

Asa-Awuku, A., Sullivan, A. P., Hennigan, C. J., Weber, R. J., and Nenes, A.: Investigation of molar volume and surfactant characteristics of water-soluble organic compounds in biomass burning aerosol, Atmos. Chem. Phys., 8, 799–812, https://doi.org/10.5194/acp-8-799-2008, 2008.
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Conant, W. C., Nenes, A., and Seinfeld, J. H.: Black carbon radiative heating effects on cloud microphysics and implications for the aerosol indirect effect 1. Extended Köhler theory, J. Geophys. Res.-Atmos., 107, 4604, https://doi.org/10.1029/2002JD002094, 2002.
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Short summary
In this manuscript, we present a novel, first-principles method for the determination of surface tension of collected liquid aerosol particles. The method uses an atomic force microscope with a specially designed probe to directly measure the surface tension, a physical parameter required for Kohler theory. The measurements were verified using a standard, check-standard and then applied to a dry and humidified oxidized α-pinene aerosol system.
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