Washington: Scared of injections? A new laser-based system that makes a jab as painless as being hit with a puff of air has been developed. South Korean scientists have developed a new system that blasts microscopic jets of drugs into the skin making an injection a painless affair.The system developed by the Seoul National University uses an erbium-doped yttrium aluminium garnet, or Er:YAG, laser to propel a tiny, precise stream of medicine with just the right amount of force.
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