Midas touch can save lives too! The precious yellow metal can assist to cure the most dreadful diseases. It is reported that tiny gold particles along with infrared light can battle a lot of diseases, especially cancer and AIDS. Ailments that require more than one drug for treatment can make do with such a drug-delivery system that allows multiple drugs to be released in a controlled fashion. This new system is controlled externally and theoretically could deliver up to three or four drugs. It is based on the fact that when gold nanoparticles are exposed to infrared light, they melt and release drug payloads attached to their surfaces. This system seems promising as the nanoparticles of different shapes respond to different infrared wavelengths. So just by controlling the infrared wavelength, the release time for each drug can be monitored with ease.

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