Innovative Drug Delivery with Capped Flexosomes: Applications, and Future Prospects

The development of novel drug delivery systems has gained significant attention, particularly in nanotechnology, for enhancing drug bioavailability and efficacy. Capped flexosomes, a specialized subclass of vesicular drug carriers, offer a promising approach for controlled and targeted drug delivery. These nanocarriers, composed of flexible lipid bilayers and stabilized by capping agents, provide improved stability, enhanced penetration, and prolonged drug release compared to conventional liposomes. Their structural flexibility allows them to encapsulate a variety of bioactive compounds, including hydrophilic and hydrophobic drug, protein and nucleic acids. Capped flexosomes are particularly advantageous in transdermal and targeted drug delivery, addressing challenges associated with traditional methods, such as drug degradation and poor cellular uptake. The capping agent enhances stability, prevents premature drug release, and protects against environmental degradation. These vesicles have shown potential in cancer treatment, gene therapy, vaccine development, and enzyme replacement therapy. Additionally, their ability to respond to physiological stimuli, such as pH and temperature variations, further improves their therapeutic potential. Several methods are employed for their preparation, including thin film hydration, ethanal/ ether injection, reverse phase evaporation, and microfluidics, each influencing particle size, encapsulation efficiency, and drug release properties. Evaluation parameters such as morphological analysis, particle size, zeta potential, entrapment efficiency, and invitro drug release confirm their effectiveness as drug carriers. Despite their advantages, capped flexosomes face challenges, including high production costs and limited clinical data on long term safety and efficacy. Future advancements in nanotechnology may address these concerns, paving the way for their integration into precision medicine. With ongoing research, capped flexosomes have the potential to revolutionize drug delivery, offering safer, more efficient, and highly targeted therapeutic solutions across various medical fields.