Controlled Nanoparticle Targeting and Nanoparticle-Driven Nematic Structural Transition

Figure 5

Interference textures of LC droplets of different radii obtained for crossed (a, c) and switched off analyser (b, d) in absence and presence of phospholipid: (a, b) , (c, d)  g/mL. At the right panel we schematically plot typical bipolar (top) and radial (bottom) nematic structure. With white (black) arrows we mark positions of boojums (hedgehog) in bipolar (radial) structure. In (a) and (c) the polarizers are crossed at an angle of 70 degrees.