objective: maintaining the health of oral tissues is a major goal in dentistry. however, limitations in dental materials, instruments, procedures and medications prevent achievement of this goal. advances in nanotechnology have paved the way to approach this goal. this study reviews the advances on nanotechnology in dentistry. review of literatures: in this review study, google scholar, pubmed,...

– We study the torque arising between two corrugated metallic plates due to the interaction with electromagnetic vacuum. This Casimir torque can be measured with torsion pendulum techniques for separation distances as large as 1μm. It allows one to probe the nontrivial geometry dependence of the Casimir energy in a configuration which can be evaluated theoretically with accuracy. In the optimal...

In recent years, nanoparticles have come under close scrutiny for their possible health and environmental issues, making them less attractive photocatalytic applications in air or water purification. Replacing free nano-powders with active stable films is thus a fundamental step towards developing effective devices. Aluminum represents cheap technologically-relevant substrate, but its been hamp...

In this research, a novel thin film Si-GO10 and nanopowders Si-GO30 of silica-graphene oxide (GO) composite were prepared via the sol–gel method deposited on glass substrates using spray pyrolysis. X-ray diffraction (XRD) results showed relatively strong peak in graphite layer that corresponds to (002) plane. Transmission electron microscope (TEM) images SiO 2 nanoparticles randomly distributed...