Gelation properties of self-assembling N-acyl modified cytidine derivatives

Area of Science:

• Supramolecular Chemistry
• Materials Science
• Drug Delivery Systems

Background:

• Low molecular weight gelators (LMWGs) are crucial in materials science for self-assembly.
• Cytidine derivatives offer potential for developing novel gelating agents.
• Developing efficient drug delivery platforms remains a key challenge in pharmaceutical research.

Purpose of the Study:

• To synthesize and characterize novel cytidine-derived gelators with varying acyl chain lengths.
• To investigate the gelation properties of these compounds in aqueous-organic solvent systems.
• To evaluate the potential of these self-supporting gels as drug delivery platforms.

Main Methods:

• Synthesis of cytidine derivatives with different acyl chain lengths.
• Gelation studies in binary solvent systems (aqueous-organic).
• Rheological analysis, Transmission Electron Microscopy (TEM), and Fourier-Transform Infrared Spectroscopy (FTIR) for structural characterization.
• Drug release studies using fluorescently labeled tracers (high and low molecular weight).

Main Results:

• Successful synthesis of new cytidine-derived gelators.
• Formation of self-supporting gels at low concentrations (0.5% w/v) in aqueous-organic mixtures.
• Rheology and structural analyses confirmed fibrillar networks.
• Demonstrated controlled release of both high and low molecular weight tracers, indicating potential for drug delivery.

Conclusions:

• Novel cytidine-derived gelators capable of forming self-supporting gels have been developed.
• The fibrillar structures of these gels are confirmed through various characterization techniques.
• These cytidine-based gels show significant potential as versatile platforms for drug delivery.