This paper presents the principle, fabricated structure, characterization and experimental results obtained for a new class of surfaces—“hydrophobic non-fouling surfaces”—for droplet-based microfluidics. Building on the theory of wetting of rough surfaces, we have developed novel surfaces which are chemically hydrophilic, i.e., the droplet is in contact with a non-fouling hydrophilic material b...

Rough topography enhances the activation of Wnt canonical signaling in vitro, and this mediates its effects on cell differentiation. However, the molecular mechanisms underlying topography-dependent control of Wnt signaling are still poorly understood. As the small GTPase RhoA controls cytoskeletal reorganization and actomyosin-induced tensional forces, we hypothesized that RhoA could affect th...

This paper is concerned with two problems. First, when the object is near a rough surface such as an ocean or terrain, and the transmitter and the receiver are also located near the surface, how can we image or detect the object which may be obscured by multiple scattering due to rough surface scattering. Second, even though multiple scattering generally increases the incoherent field, there ar...