Spontaneous Fractal Aggregation of Gold Nanoparticles and Controlled Generation of Aggregate-Based Fractal Networks at Air/Water Interface

摘要

The spontaneous fractal aggregation of as-prepared cetytrimethylammonium bromide (CTAB)-capped gold nanoparticles was found to happen at the air/water interface after spreading their chloroform solution on water surfaces.Aided by Langmuir-Blodgett techniques,these fractal aggregates can be interconnected with each other to form aggregate-based fractal networks.