Self-assembly of multi-component microstructure using the entropic effect

We have been testing the application of the entropic effect (the depletion volume effect) for the self-assembly of microcomponents. Microcomponents with the arbitrary shapes fabricated by the negative photoresist were immersed and gently agitated in the solution. When the solution contains nanometric macromolecule at relatively high concentration, they formed assembled structures, to increase the translational entropy of macromolecules in the solution. In the report, we attempted the assembly of the desired structure composed of multiple components, and found that it is important to design the accessible complementary shape with the greater interfacial area to render the specific bonding effectively.