Peptide-based hydrogel nanoparticles as effective drug delivery agents

Area of Science:

• Biomaterials Science
• Nanotechnology
• Drug Delivery Systems

Background:

• Peptide-based hydrogels offer advanced drug delivery solutions.
• Fmoc-FF dipeptides self-assemble into rigid nano-scaled hydrogels.
• Scalable production of these nanostructures is crucial for clinical translation.

Purpose of the Study:

• To develop a scalable process for Fmoc-FF hydrogel nanoparticles (HNPs) as drug carriers.
• To characterize the formulation, stability, and drug encapsulation capabilities of these HNPs.
• To investigate the drug release kinetics from the HNP matrix.

Main Methods:

• Modified inverse-emulsion method with vitamin E-TPGS and high-speed homogenization for HNP formulation.
• Characterization of HNPs using dynamic light scattering and electron microscopy.
• Encapsulation and in vitro release studies of doxorubicin and 5-fluorouracil.

Main Results:

• Successfully formulated Fmoc-FF based HNPs with two distinct size populations (21.5±1.3 nm and 225.9±0.8 nm).
• Demonstrated robust procedures for HNP formulation, purification, storage, and handling.
• Observed drug release kinetics dependent on drug properties, indicating tunable delivery.

Conclusions:

• Fmoc-FF based hydrogel nanoparticles provide a scalable and versatile platform for drug encapsulation and delivery.
• These HNPs show significant potential for delivering various drugs and bioactive molecules.
• Further development could lead to advanced therapeutic applications in nanomedicine.