There are several types of templates used in template-based techniques:
Hard Templates: These are rigid and stable templates such as anodized aluminum oxide (AAO), silicon, and porous membranes. Soft Templates: These include block copolymers, surfactants, and other organic molecules that can form nanostructures through self-assembly. Biological Templates: These are natural templates like viral capsids, proteins, and DNA that can guide the formation of nanostructures.
