Abstract:
The layer-by-layer（LBL） technique has been widely used to prepare nanofilm materials with precise control of material size, composition and morphology. Based on the interactions forces (electrostatic force, hydrogen bond, covalent bond, charge-transfer and coordination bond), LBL self-assembly process and the application of LBL self-assembly technology to fabricating thin film materials with various morphologies (planar films, capsules, nanotubes and so on) and functions are reviewed. Due to their distinctive chemical and physical properties including adsorption, catalyses, irradiance and photoelectricity, the functional thin film materials prepared from LBL self-assembly technology have potential applications in the areas of selective catalyst, simulation of cell behavior, drug release, biosensors, permselective membranes and electrode materials. LBL self-assembly technology has become an important method in fields of chemistry, physics, biology, material and nanoscience.
