An Insight on Pillararene-Functionalized Mesoporous Silica Nanoparticles for Targeted Drug Delivery and Theranostics...

Area of Science:

• Supramolecular Chemistry
• Materials Science
• Nanotechnology

Background:

• Pillararenes are novel pillar-shaped macrocyclic hosts with symmetrical structures and electron-rich cavities.
• Pillararene-functionalized mesoporous silica nanoparticles (MSNs) combine pillararene properties with MSN advantages like large surface areas.
• These hybrid materials exhibit unique host-guest interactions and tunable functionalities.

Purpose of the Study:

• To review the synthesis of pillararene-MSN hybrid systems.
• To explore recent advancements in their applications, including drug delivery, molecular recognition, biosensing, and imaging.
• To discuss challenges and future perspectives for clinical translation.

Main Methods:

• Integration of pillararenes with mesoporous silica nanoparticles (MSNs).
• Characterization of the resulting hybrid materials' topological and chemical structures.
• Evaluation of their physicochemical properties for various applications.

Main Results:

• Pillararene-MSN hybrids offer large surface areas and abundant active sites.
• Applications demonstrated include sophisticated drug delivery, molecular recognition, biosensing, and imaging.
• Stimuli-responsive cargo release was achieved using pH, temperature, light, and specific agents.

Conclusions:

• Pillararene-MSN hybrids represent a promising class of materials for advanced applications.
• Further research is needed to overcome challenges for clinical translation of drug delivery systems.
• The unique properties of these materials hold significant potential for future biomedical innovations.