Polymer hydrogel functionalized with biodegradable nanoparticles as composite system for controlled drug delivery

Area of Science:

• Nanomedicine
• Polymer Chemistry
• Biomaterials Science

Background:

• Polymer nanoparticles (NPs) offer targeted drug delivery, but localized retention is challenging.
• Drug reservoirs at injection sites can complement targeted delivery strategies.

Purpose of the Study:

• To create a composite hydrogel material functionalized with polymer NPs for sustained drug release.
• To evaluate the characteristics and drug-eluting capabilities of the novel composite system.

Main Methods:

• Synthesized PEGylated polymer NPs via copolymerization of ϵ-caprolactone and polyethylene glycol.
• Fabricated a hydrogel matrix through polycondensation of NPs, agarose, and branched polyacrylic acid.
• Characterized NP functionalization using FTIR and HRMAS-NMR spectroscopy.
• Assessed drug release kinetics and rheological properties of the composite hydrogel-NPs system.

Main Results:

• Successfully developed a functionalized hydrogel-NPs composite material.
• Verified NP functionalization and demonstrated sustained release of To-Pro3 (drug mimetic).
• The composite system exhibited favorable rheological properties for drug delivery applications.

Conclusions:

• The developed hydrogel-NPs composite is a promising platform for localized drug delivery.
• This system can function as an effective drug reservoir, enhancing nanomedicine approaches.
• Further research can explore its potential in various therapeutic applications.