Hygroscopic growth of simulated lung fluid aerosol particles under ambient environmental conditions

被引：19

作者：

Davies, James F. ^{[1
]}

Price, Chelsea L. ^{[1
]}

Choczynski, Jack ^{[1
]}

Kohli, Ravleen Kaur ^{[1
]}

机构：

[1] Univ Calif Riverside, Dept Chem, Riverside, CA 92521 USA

来源：

CHEMICAL COMMUNICATIONS | 2021年 / 57卷 / 26期

关键词：

DROPLETS; MODEL;

D O I：

10.1039/d1cc00066g

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The hygroscopicity of respiratory aerosol determines their particle size distribution and regulates solute concentrations to which entrained microorganisms are exposed. Here, we report the hygroscopicity of simulated lung fluid (SLF) particles. While the response of aqueous particles follow simple mixing rules based on composition, we observe phase hysteresis with increasing and decreasing relative humidity (RH) and clear uptake of water prior to deliquescence. These results indicate that RH history may control the state of respiratory aerosol in the environment and influence the viability of microorganisms.

引用

页码：3243 / 3246

页数：4

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