Cyclodextrin-based host-guest supramolecular nanoparticles for delivery: from design to applications.

Area of Science:

• Supramolecular Chemistry
• Nanotechnology
• Materials Science

Background:

• Host-guest interactions are fundamental to supramolecular nanotechnology.
• Cyclodextrins (CDs) offer biocompatibility and tunable properties for nanodelivery systems.
• Polymer modification of CDs enhances their functionality and application potential.

Purpose of the Study:

• To describe design strategies for employing CDs in host-guest delivery systems.
• To highlight the development of multifunctional CD-based supramolecular nanoparticles.
• To explore the potential of these nanoparticles in clinical applications, particularly for targeted drug and gene delivery.

Main Methods:

• Utilizing host-guest interactions between cyclodextrins and guest moieties (e.g., adamantyl groups).
• Designing nanoparticles with specific functionalities like coating protection, conformational flexibility, and drug delivery.
• Incorporating features for controlled particle size, biodegradability, controlled release, and targeted delivery through self-assembly.

Main Results:

• CD-based host-guest systems demonstrate improved biocompatibility and enhanced delivery efficacy, especially to tumors.
• Core-shell nanoparticles with hydrophobic cores and hydrophilic shells effectively carry insoluble drugs.
• Multifunctional nanoparticles exhibit controlled release triggered by tumor microenvironments or external stimuli.

Conclusions:

• CD-based host-guest supramolecular nanoparticles offer versatile platforms for advanced drug and gene co-delivery.
• These systems show significant potential for synergistic inhibition of malignant tissue growth.
• Optimized nanoparticle designs are expected to expedite in vivo applications and clinical acceptance.