Abstract

Cyclodextrin-based nanosponges (CD-NS) are innovative cross-linked cyclodextrin polymers nanostructured within three-dimensional network. CD-NS are highly porous nanoparticles characterized by crystalline or amorphous structure, spherical shape and swelling properties. Different cross-linkers provide variety of nanosponges. The polarity, dimension of the polymer mesh and release of entrapped molecule can be easily tuned by varying the type of cross-linker and degree of cross-linking. The site-specific targeting can be achieved by conjugating various ligands on the surface of nanosponge. They offer unique advantage of controlled release and are biologically safe and biodegradable material. Cyclodextrin-based nanosponges can form complexes with different types of lipophilic or hydrophilic molecules. The nanosponges could be used to improve the aqueous solubility of poorly water-soluble molecules, protect degradable substances and as innovative carrier in pharmaceuticals, cosmetics, protein/peptide delivery, diagnostics, enzyme-catalysed reactions, environmental control and agrochemistry.

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