Used in environmental chemistry for the removal of heavy metal ions from wastewater due to its strong binding affinity and selective complexation properties. Its large cavity size allows effective encapsulation of bulky organic pollutants and metal complexes. Applied in sensor development for detecting cations and neutral molecules through changes in optical or electrochemical signals. Utilized in drug delivery research to improve solubility and stability of poorly water-soluble drugs by forming host-guest complexes. Also explored in nanotechnology for constructing supramolecular assemblies and functional materials with tailored recognition features.