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(a) Image of the contact angle of a 0.5 µL droplet of water on top of a DVD-PDMS Si nanobelt (etched at 30 W). (b) Same for nanobelts etched at 50 W. (c) Contact angle versus the RIE power for DVD-PDMS and BR-hPDMS nanobelts. (d) Contact angle versus the aspect ratio for DVD-PDMS and BR-hPDMS nanobelts.
