The new deposition chamber is designed to mimic particle deposition onto lung cell cultures in a realistic way, close to physiological condition.
To allow well defined deposition of particles on the cells, NACIVT contains the following features:
The design of the particle deposition chamber is based on existing ones (Savi et al., Environ. Sci. Technol., 2008; Mertes et al., J. Aerosol Med. Pulm. Drug Deliv., 2013).
Prior to entering the chamber the particles are charged electrically. This can be either unipolar or bipolar.
In a conditioning chamber the particle carrying air is humidified and heated. Then the particles enter the deposition chamber, were they are precipitated by an electrical field on the cell cultures.
Electrostatic particle deposition
Animation: Electrostatic particle deposition
Nanoparticles from a large number of sources and size range can be investigated with the NACIVT system. This includes engineered nanoparticles as they are increasingly used in manufacturing processes (eg. for new materials, coatings etc.) but also nanoparticles released in consumer products such as sprays.
An alternative area of research for which the NACIVT is ideally suited are investigations on atmospheric (nano)particles from natural and man-made sources.
The NACIVT system has a compact and integrated design so that it can be transported to any particle source of interest, e.g., laboratories, manufacturing environments or atmospheric field applications.
Parallel deposition on up to 24 cell cultures allows rapid analysis, e.g., using different cell types.
Circumferential view of NACIVT.