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Research Advances of Host-Guest Supramolecular Self-Assemblies with Aggregration-Induced Emission Effect and Their Applications in Biomedical Field

Host-guest interaction, as one of the most important behaviors in supramolecular self-assemblies, is often used to construct functional supramolecular materials. Based on host-guest interaction, it has become a hotspot in supramolecular chemistry by utilizing macrocyclic hosts and guests with aggregation-induced emission (AIE) properties as building blocks to construct supramolecular system, which can be widely used in drug delivery, cellular imaging, biosensing and so on. According to the origination of fluorescence effects of supramolecular assemblies, either from the host or guest molecules, the recent 5-year advances of AIE supramolecular self-assemblies based on host-guest interaction by utilizing macrocycles such as cyclodextrin, calixarene, cucurbituril, pillararene and other water-soluble host molecules are summarized, and their applications in the biomedical field are discussed.