Nematic Microdroplets, Shells and Handlebodies
This chapter discusses the structure and topology of nematic microdroplets for different surface anchoring and chirality. The most interesting case are chiral nematic microdroplets with perpendicular surface anchoring, where knots and links were predicted. We show experimental results on these droplets, which show elastically assembled point defects, skyrmions, and torons in a liquid microsphere. Nematic shells and handlebodies are briefly discussed from the topological standpoint.