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Physico-Chemical Characteristics Of Evaporating Respiratory Fluid Droplets, Eric P. Vejerano, Linsey C. Marr
Physico-Chemical Characteristics Of Evaporating Respiratory Fluid Droplets, Eric P. Vejerano, Linsey C. Marr
Faculty Publications
The detailed physico-chemical characteristics of respiratory droplets in ambient air, where they are subject to evaporation, are poorly understood. Changes in the concentration and phase of major components in a droplet—salt (NaCl), protein (mucin) and surfactant (dipalmitoylphosphatidylcholine)—may affect the viability of any pathogens contained within it and thus may affect the efficiency of transmission of infectious disease by droplets and aerosols. The objective of this study is to investigate the effect of relative humidity (RH) on the physico-chemical characteristics of evaporating droplets of model respiratory fluids. We labelled these components in model respiratory fluids and observed evaporating droplets suspended on …