Although certain liquid crystals mainly comprise water, a spontaneous alignment of electrical dipoles could incur in them and consequently a spontaneous electrical polarisation could occur macroscopically.
A team of Columbia Engineering researchers has taken advantage of graphene's special properties - its mechanical strength and electrical conduction - and created a nano-mechanical system that can create FM signals, in effect the world's smallest FM radio transmitter.
Researchers have made the first battery electrode that heals itself, opening a new and potentially commercially viable path for making the next generation of lithium ion batteries for electric cars, cell phones and other devices. The secret is a stretchy polymer that coats the electrode, binds it together and spontaneously heals tiny cracks that develop during battery operation.
Bulk metallic glasses can be as strong or even stronger than steel, as malleable as plastics, conduct electricity and resist corrosion. These materials would seem to have it all save for one problem: they are often brittle, with a poor and uneven resistance to fatigue that makes their reliability questionable. The creation of multicomponent bulk-metallic glass composites is addressing this issue but the problem remains for monolithic metallic glasses, which are major components of bulk metallic composites.
A new study evaluates the effect of incorporation of an acrylate polyhedral oligomeric silsesquioxane nanostructure (APOSS) on the physical and mechanical properties and hydrolytic stability of octyl cyanoacrylate adhesives.
Researchers have created tiny holograms using a 'metasurface' capable of the ultra-efficient control of light, representing a potential new technology for advanced sensors, high-resolution displays and information processing.