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[(a)–(c)] Plot of contact angle vs surface temperature for surfaces A, B, and C, respectively. Inset: Optical micrographs of the water droplet at low, medium, and high temperatures.
[(a)–(c)] Plot of the calculated contact angle fitted on the measured contact angle vs surface temperature for surfaces A, B, and C, respectively.
Piece-wise linear approximation method to find the threshold and saturation temperatures to characterize the onset and end of the LCST range. The contact angle at is and at is .
The three types of thermoresponsive surfaces fabricated with different surface roughness.
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