NanoSpot^™ collector for aerosol sample collection for direct microscopy and spectroscopy analysis.

ABSTRACT: We describe design and characterization of an aerosol NanoSpot^™ collector, designed for collection of airborne particles on a microscopy substrate for direct electron and optical microscopy, and laser spectroscopy analysis. The collector implements a water-based, laminar-flow, condensation growth technique, followed by impaction onto an optical/electron microscopy substrate or a transmission electron microscopy grid for direct analysis. The compact design employs three parallel growth tubes allowing a sampling flow rate of 1.2 L min^-1. Each growth tube consists of three-temperature regions, for controlling the vapor saturation profile and exit dew point. Following the droplet growth, the three streams merge into one flow and a converging nozzle enhances focusing of gr

SUBMITTER: Zervaki O 

PROVIDER: S-EPMC10242417 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature