TechnologySperm-like nanopropeller is smallest swimmer ever Glass nano-devices that can push objects 1000 times their own size could one day be used to deliver drugs or perform nanosurgery 51¶¯Âþ
TechnologyMicromachine power problem solved with magnets Providing power for machinery on the microscale has proved a headache for scientists – but magnetic fields are increasingly being seen as a solution 51¶¯Âþ