Preparation of DNA-based molecular assemblies by self-organization. From nanometer scale to mesoscopic scale

Toward the functional application of DNA as novel molecular devices, we have immobilized DNA as two-dimensional molecular assemblies by means of specific intermolecular interaction at the air-water interface. Preparation of DNA-mimetics at the air-water interface is briefly shown in the second part of this paper. The final part describes micropattern formation of DNA assemblies by using a novel lithography-free technique based on a general physical phenomenon. Mesoscopic two-dimensional patterns of DNA assemblies are prepared by freezing of dissipative structures formed in casting processes of DNA solution.