An analytical model for the wettability switching characteristic of a nanostructured thermoresponsive surface

Londe, Ghanashyam; Chunder, Anindarupa; Zhai, Lei; Cho, Hyoung J.
April 2009
Applied Physics Letters;4/20/2009, Vol. 94 Issue 16, p164104
Academic Journal
The applications of thermoresponsive surfaces require the development of a rigorous mathematical treatment for these surfaces to understand and improve their behavior. We propose an analytical model to describe the transfer characteristics (variation in contact angle versus temperature) of a unique nanostructured thermosensitive surface, consisting of silica nanoparticles and a hydrophilic/hydrophobic thermoresponsive polymer, poly(N-isopropylacrylamide). Three different thermo-sensitive platforms were fabricated and the contact angle change of a water droplet on the surface with varying surface temperature was analytically modeled.


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