Development of surface modification and patterning method using TiO2 integrated extended nanochannels

Development of surface modification method of extended nanospaces (10-1,000 nm) expands the possibilities of various fluidic applications. Although surface modification for microchannels is essential for controlling the behavior of fluid, they are difficult to apply to nanometer-sized channels. Here, we developed a novel surface patterning method for extended nanochannels using fluorinated-phosphonic acid (FPS) and titanium oxide (TiO ₂ ). Performances of the modification method could be confirmed by measurements of Laplace pressure.