The research and technology revolutions in biotechnology and nanotechnology have spurred great interest in complex fluids and interfacial science. The Gordon Research Conference on Colloidal, Macromolecular & Polyelectrolyte Solutions explores the frontiers of research about complex solutions of charged, macromolecular and colloidal systems and their interfaces. This conference has a strong interdisciplinary tradition bringing together materials scientists, engineers, physicists, chemists and biochemists. The conference attracts industrial, government and academic scientists to a stimulating set of presentations and discussions. The program highlights the exciting impact of colloidal, macromolecular and polyelectrolyte solutions on materials and on the traditional subject areas of self-assembly and nanostructures.