Examples of molecular receptors include enzymes, synthetic catalysts, and supramolecular complexes. Enzymes are natural receptors that are highly efficient and selective, often used as biological catalysts. Synthetic catalysts, such as metal-organic frameworks (MOFs) and covalent organic frameworks (COFs), are designed to mimic natural receptors. Supramolecular complexes involve non-covalent interactions and are used to create highly specific binding sites for substrates.
