A method of stabilizing a nanostructure (104), comprising: disposing an elongated nanostructure (104) on a substrate (102), the nanostructure (104) having an attachment end attached to the substrate (102) and a free end opposite the attachment end; forming a metal cap or a metal coating (108) on the free end of the nanostructure (104); and coating the nanostructure (104) with a metal oxide coating (110).
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