A nontoxic and environmentally friendly way to make tiny nanorods of zinc oxide has been developed for the first time by researchers in Saudi Arabia. The approach could allow the nanorods to be used safely in medical applications, among others. M.A. Shah and M.S. Al-Shahry of the King Khalid University, and A.M. Asiri, of the King Abdul-Aziz University, have discovered a safe and biocompatible route for the synthesis of zinc oxide nano rods. Their route is based on the simple reaction of water and zinc powder at a relatively low temperature. Shah says: "Since water is regarded as a benign solvent and nontoxic, the product [nanorods] could be used safely for biomedical and other applications."
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