Controlled Drug Release from Biodegradable Polymer Matrix Loaded in Microcontainers Using Hot Punching.

Area of Science:

• Biomaterials Science
• Drug Delivery Systems
• Nanotechnology

Background:

• Microcontainers are advanced drug delivery systems (DDS) that enhance drug bioavailability and enable targeted delivery.
• High-throughput loading of microcontainers with drugs remains a significant challenge in DDS development.
• Current methods for loading microcontainers are often complex and time-consuming.

Purpose of the Study:

• To investigate the efficacy of hot punching as a novel, high-throughput method for loading microcontainers.
• To analyze the impact of hot punching on drug distribution within the microcontainer.
• To evaluate the drug release kinetics from hot-punched microcontainers.

Main Methods:

• Developed a hot punching technique utilizing microdevices as molds for drug-polymer films.
• Embedded the model drug Furosemide within a biodegradable polymer, Poly-ε-caprolactone.
• Analyzed drug distribution and characterized drug release profiles from the loaded matrices.

Main Results:

• Hot punching demonstrated a fast, simple, and single-step process for loading microcontainers.
• Zero-order sustained drug release was observed for Furosemide-loaded Poly-ε-caprolactone matrices.
• The unique spatial distribution of Furosemide during hot punching contributed to sustained release.

Conclusions:

• Hot punching is a promising technique for efficient and high-throughput loading of microcontainers.
• The method facilitates controlled drug release, offering potential for improved therapeutic outcomes.
• This technique advances the development of reservoir-based advanced drug delivery systems.