Electrostatic precipitation of exhaled particles for tensiometric examination of pulmonary surfactant

Collecting exhaled particles that represent small droplets of the alveolar lining fluid shows great promise as a tool for pulmonary surfactant (PS) sampling. In this work we present setup consisting two modules, namely, module droplet collecting, called an electrostatic aerosol trapping (ESAT) system, and measurement studying PS properties. We also suggest method to extract numerical values from experimental data. The operating principle ESAT is based on precipitation particles. Native material was collected directly water surface, where adsorbed film investigated by tensiometric method. modified capillary wave proposed in our previous adapted small-volume samples. efficiency verified experiments involved participation healthy subjects. accumulation components surface amount sufficient study reported. idea underlying new concept used may give impetus development point-of-care facilities collecting samples needed provide their express analysis. • Exhaled contains Electrostatic technique utilized measurements. introduced testing surfactant.