Quantifying the Viscosity of Individual Submicrometer Semisolid Particles Using Atomic Force Microscopy.

ABSTRACT: Atmospheric aerosols' viscosities can vary significantly depending on their composition, mixing states, relative humidity (RH) and temperature. The diffusion time scale of atmospheric gases into an aerosol is largely governed by its viscosity, which in turn influences heterogeneous chemistry and climate-relevant aerosol effects. Quantifying the viscosity of aerosols in the semisolid phase state is particularly important as they are prevalent in the atmosphere and have a wide range of viscosities. Currently, direct viscosity measurements of submicrometer individual atmospheric aerosols are limited, largely due to the inherent size limitations of existing experimental techniques. Herein, we present a method that utilizes atomic force microscopy (AFM) to directly quantify the viscosity of sub

SUBMITTER: Madawala CK 

PROVIDER: S-EPMC10551855 | biostudies-literature | 2023 Oct

REPOSITORIES: biostudies-literature