Ultrasonic waves have many more applications than we can realise. In most of the cases we are using them for surface cleaning or dispersing of suspensions. Unexpected application of ultrasounds is coating of various materials with nanoparticles. It is possible due to cavitation phenomena. When cavitation bubble growth and collapse, shock waves which give high velocity for nanoparticles are generated. These nanoparticles are deposited on the surface and forming strong chemical and physical bond.

Ultrasound technology allows to create homogeneous layer on the titanium, ceramics or polymer surface. Process of coating is short time and temperature can be adjusted to the needs and the type of material and this method does not damage the surface. Nanolayers can be applied for UV protection, antibacterial coating or bone regeneration implants.

The speech summarizes the influence of coating with nanoparticles  and possibilities of application in industry.

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