Scientists at Indian Institute of Technology and Tokai University have taken the natural features of a mosquito's mouth, and created a new type of needle that promises pain-free blood sample collection and injections. When mosquitoes bite you, it's not their mouth that hurts you: their ultra-fine proboscis dips beneath the skin, and then a muscle squeeze-relax motion draws blood out of it. The new needle, made of titanium alloys for strength, has a tiny microelectricalmechanical ...
