World's smallest 'house' spanning just over hair width made
A French nanorobotics team has assembled the world's smallest house-like structure where ion beams were focussed on a 300-by-300-sq-micrometre area. An accuracy of less than 2 nanometres was achieved using tiny manoeuvrable robots in vacuum. With this advancement, optical fibres as thin as human hair can be inserted into blood vessels to detect radiation levels or viral molecules, said researches.