Figure 2.

Rolled-up SRO/PCMO/SRO microtubes. (a) Rolled-up SRO/PCMO/SRO microtube with a diameter of 6.0 μm. (b, c) Positioned microtubes obtained from <100> -oriented trenches defined by optical lithography. The tubes in (b) exhibit an aspect ratio of nearly 1:700.

Deneke et al. Nanoscale Research Letters 2011 6:621   doi:10.1186/1556-276X-6-621
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