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From the provision of clean drinking water to the early detection of disease, nanotechnology has the potential to make a real impact in the fight against global poverty.
Access to 'potable' water would transform the lives of many people in the developing world. Nanotechnology is already being used to remove contaminants from drinking water and increase the availability of fresh water, but there is still a long way to go.
Many economies in the developing world rely heavily on the export of minerals. Richard Jones discusses what the development of new nanomaterials will mean for such countries.
Linking individual molecular building blocks with covalent bonds leads to new surface-based nanostructures, which could open up new possibilities for molecular electronics.
A computational study shows how a precise arrangement of charges on the surface of a nanotube can push water molecules in single file from one end to the other.
Two groups have used scanning tunnelling microscopes to explore the behaviour of magnetic materials in exquisite detail with a view to developing new approaches to data storage.
Theoretical physicists have predicted that ultrashort laser pulses can be used to drive electrical currents through single molecules, and also to stop currents in molecular junctions.