[Experimental base for internal connection dental implants for two-step implantation].

The article contains selected results of comprehensive studies on osseointegration of small diameter internal connection dental implants made of nanostructured titanium. Fatigue tests were carried out by means of new osseointegrated metal etching method.

Optical humidity sensing and ultrasound effect for mesoporous silicon one-dimensional photonic crystals.

Mesoporous silicon (PSi) microcavities (MC) based on one-dimensional photonic crystals have been studied as optical sensors for relative humidity (RH). Oxidized PSi modified the structure of the MC such that the spectral position of the MC resonance peak depended on the humidity. A spectral shift of the MC resonance peak of up to 6 nm to longer wavelengths was observed as the RH increased from 20% to 85%.