Reversible microscale assembly of nanoparticles driven by the phase transition of a thermotropic liquid crystal by Mac Fhionnlaoich, N, Schrettl, S, Tito, NB, Yang, Y, Nair, M, Serrano, LA, Harkness, K, Silva, PJ, Frauenrath, H, Serra, F, Carter, WC, Stellacci, F, Guldin, S