Cold atmospheric plasma

From basic research to practical application

What is Plasma?

“Plasma” is an ionized gas – the so-called fourth state of matter (the others being solid, liquid and gas) – and is generated by being energized up to 100,000 degrees or more. Natural examples for plasmas are the sun – a gigantic plasma ball – or lightning on Earth – temporary electrical discharges.

What is Cold Atmospheric Plasma (CAP)?

Cold atmospheric plasmas (CAP) are partially ionized gases, that means only one particle out of 109 is ionized. The advantage of cold atmospheric plasmas is that they are “cold”, within the meaning that they operate under room temperature and can be produced at atmospheric pressure on Earth.

Generally, cold atmospheric plasma generates a reactive mix of electrons, ions, excited atoms and molecules, reactive species (e.g. O3, NO, NO2, etc.), UV radiation and heat.

How can Plasma be engineered?

Cold plasma can be engineered to be delivered in various forms like: gas/air (CAP), plasma activated water (PAW), plasma activated aerosol (PAA) and plasma activated hydrogel (PAH).

What can Plasma do?

Extensive research, employing various technologies to generate cold atmospheric plasmas, showed that this reactive mix can be modified for specific purposes. This mix inactivates bacteria, fungi, biofilms, viruses, spores, mites as well as odour and harmful molecules very efficiently.

Where can Plasma be applied?

The concentration and the composition of the plasma components can be adapted (or designed) for different intended applications such as medical technology, hygiene, water treatment or odour management.