Colloid and Macromolecular Assemblies at Interfaces for Sustainable Applications
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In this presentation, I will give an overview of our research program related to interfacial science that has extended from 1991 to the present. When dealing with assemblies with nano-objects such as macromolecules and colloids, we have to take into account many factors such as interparticle interactions, object-surface interactions, the range of interactions, dynamic nature of the interactions, possible phase separation and so forth. We have explored diverse methods of creating thin films on substrates including quiescent adsorption from solution, spin casting, and layer-by-layer deposition. With advanced characterization tools such X-ray and neutron scattering and reflectivity, atomic force microscopy, and in-situ electron microscopy, the detailed nature of nano-object assemblies has been revealed and well understood. These assemblies of nano- and micro-objects in the form of hybrids can be applied to many important industrial processes and materials for sustainable growth.