The role of collective motion in examples of coarsening and self-assembly.

摘要: The simplest prescription for building a patterned structure from its constituents is to add particles, one at time, an appropriate template. However, self-organizing molecular and colloidal systems in nature can evolve much more hierarchical ways. Specifically, (or clusters of constituents) may aggregate form clusters) that serve as blocks later stages assembly. Here we evaluate the character consequences such collective motion set prototypical assembly processes. We do so using computer simulations which system's capacity dynamics be controlled systematically. By explicitly allowing or suppressing motion, quantify effects. find coarsening within two dimensional attractive lattice gas (and analogous off-lattice model three dimensions) naturally dominated by over broad range temperatures densities. Under circumstances, cluster mobility inhibits development uniform coexisting phases, especially when macroscopic segregation strongly favored thermodynamics. contrast, viral capsids not frustrated but instead facilitated moves, promote orderly binding intermediates consisting several monomers.