Experimental and theoretical investigations in stimuli responsive dendrimer-based assemblies

Area of Science:

• Supramolecular Chemistry
• Materials Science
• Nanotechnology
• Drug Delivery Systems

Background:

• Stimuli-responsive macromolecular assemblies are crucial for targeted drug delivery, enabling drug sequestration and controlled release.
• Dendrimers, with their monodisperse nature and tunable structures, have emerged as significant platforms in this field over the past two decades.

Purpose of the Study:

• To review synthetic strategies for functional dendrimers and design approaches for incorporating stimuli-responsive elements.
• To discuss the classification and application of extrinsic and intrinsic stimuli in dendrimer-based drug delivery.
• To highlight the role of molecular dynamics (MD) simulations in understanding dendrimer behavior and drug release mechanisms.

Main Methods:

• Discussion of various synthetic strategies for creating functional dendrimers.
• Analysis of design strategies for integrating stimuli-responsive moieties into dendritic architectures.
• Review of molecular dynamics (MD) simulations applied to dendrimer systems (e.g., G4 PPI, biaryl facially amphiphilic dendrimers).

Main Results:

• Dendrimers can be synthesized with diverse functionalities and stimuli-responsive elements.
• Extrinsic (temperature, light) and intrinsic (pH, redox, enzymes) stimuli can be utilized for controlled drug release.
• MD simulations provide mechanistic insights into dendrimer assembly and drug release, complementing experimental findings.

Conclusions:

• The combination of experimental and theoretical studies, particularly MD simulations, enhances the development of dendrimers for drug delivery.
• Dendrimers represent versatile systems with significant potential for advanced, targeted therapeutic applications.