Recent Advances in Polyurethane/POSS Hybrids for Biomedical Applications

Area of Science:

• Materials Science
• Biomedical Engineering
• Polymer Chemistry

Background:

• Advanced organic-inorganic materials offer unique properties for biomedical applications.
• Polyhedral oligomeric silsesquioxanes (POSS) are promising inorganic nanoparticles due to their biocompatibility, non-toxicity, and ability to modify material porosity.
• Incorporating POSS into polyurethane (PU) matrices significantly alters mechanical properties, surface characteristics, and bioactivity.

Purpose of the Study:

• This review focuses on the recent developments of POSS-PU composites for biomedical applications.
• It aims to present different methods of POSS incorporation into PU structures.
• The review also describes the applications of these hybrids in various biomedical fields.

Main Methods:

• Review of literature on POSS-PU composites.
• Description of various POSS incorporation techniques (chemical and physical).
• Presentation of characterization methods and modification routes for PU/POSS materials.

Main Results:

• POSS incorporation modifies PU properties, enhancing their suitability for biomedical applications.
• POSS-PU hybrids have demonstrated potential in scaffolds, cardiovascular devices (stents, valves), and membranes.
• Applications extend to bio-imaging and cancer treatment, highlighting the versatility of these materials.

Conclusions:

• POSS-PU composites represent a significant advancement in developing advanced materials for the biomedical field.
• The tunable properties of these materials make them highly adaptable for diverse medical needs.
• Further research into characterization and modification routes will continue to expand their therapeutic potential.