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A special property of water is that it starts to expand a few degrees above its freezing point, but a study of supercooled liquid water suggests that this unusual behaviour turns around below a certain temperature

Block copolymers in combination with new etching techniques can create ordered silicon nanorod arrays that are compatible with semiconductor technology

Transparent, superhydrophobic films formed from the layer-by-layer assembly of silica nanoparticles could be useful for making self-cleaning windows and car windshields

A sensitive imaging method confirms theoretical predictions for the existence of electron and hole 'puddles' in graphene sheets

Metallic clusters that contain concentric shells of lanthanum and nickel atoms display unique magnetic properties

The same type of long-lived luminescence that lights up street signs and brightens paints has been developed in nanoparticles for high-contrast biomedical imaging

Combining solid-supported synthesis with magnetic separation is an attractive proposition for carbon-coated cobalt nanoparticles

The magnetization of nanosized semiconductor materials can now be controlled with light instead of heat

Last month a government department in the UK issued a press release that asked “Can nanoscience help in the fight against climate change?” The answer is a cautious yes.

Single-walled carbon nanotubes with a helical twist have been separated into samples enriched in either the left- or right-handed forms. Many exciting experiments await these sorted nanotubes, but first we need to decide what to call them.

The performance of biosensors that rely on tiny vibrating cantilevers suffers when they are operated in a liquid. The solution is to place the liquid inside the cantilever.

Nanotechnology could have an enormous impact on medicine but, says Michael Helmus, the regulations that govern new drugs and medical devices need to be updated before nanomedicine can be commercialized.