Why do people hates needles? Is it the pain? Or the thought of pain?
Well, imaging totally painless needles. If you could create a needle so small and mimic the bite of a mosquito, you could have a totally pain-free needle. The new biocompatible microneedle, designed by Suman Chakraborty of the Indian Institute of Technology in Kharagpur and Kazuyoshi Tsuchiya of Tokai University in Kanagawa is based on the same principle.