Washington:  Defying gravitational forces, an Indian-origin scientist-led team has developed a new way of making surfaces that can actively control how fluids or particles move across them. The discovery may enable new kinds of biomedical or microfluidic devices or solar panels that could automatically clean themselves of dust and grit. “Most surfaces are passive. They rely on gravity or other forces to move fluids or particles,” said Kripa Varanasi, an […]