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A novel process to produce a nanochannel comprised of a void in a polymer matrix is reported. The processing involves a selective degradation of one of the bicontinuous microdomain phases of microphase-separated block copolymers to create a continuous, tortuous hole having a diameter of nanometer scale (nanochannel) and plating of the surfaces with nickel metal. The nanochannel and the metal plating were confirmed by the transmission and scanning electron microscopies.
Hashimoto et al. (Mon,) studied this question.