There are several methods for fabricating nanostructured supports, each with its own advantages and limitations:
1. Top-Down Approaches: These methods involve breaking down larger materials into nanoscale structures. Techniques like lithography and etching fall into this category. 2. Bottom-Up Approaches: These methods build nanostructures from the atomic or molecular level. Techniques such as self-assembly and chemical vapor deposition are commonly used. 3. Hybrid Approaches: Combining both top-down and bottom-up methods can offer better control over the size, shape, and properties of the nanostructured supports.