Composite films based on aligned carbon nanotube arrays and a poly(N-isopropyl acrylamide) hydrogel

Hydrogel/CNT-array composite films that retain the high alignment of CNTs in hydrogel matrix are prepared. The composites present unique fast wetting and dewetting behavior and show conductive sensitivity in temperature and humidity. They are expected to have potential applications as mild dewetting materials, high efficiency electrophoresis media, and functional components in water purification plants or temperature and humidity sensors.