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. 2015 Nov 17;5:16240. doi: 10.1038/srep16240

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Copyright © 2015, Macmillan Publishers Limited

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(A) AFM images and amplitude curves of the structured PDMS surfaces, via strain-oxidation-release procedure with different oxidation times (0–450 s) using air plasma. (B) Dependence of the wavelength, amplitude and aspect ratio of created wrinkles on the plasma oxidation time with a fixed initial strain (30% substrate elongation). * indicates approximate value. Data are reported as mean ± standard deviation (SD) (n = 30 wrinkles). Scale bars are 2 μm.