Three dimensional polycaprolactone/cellulose scaffold containing calcium-based particles: a new platform for bone...

Area of Science:

• Biomaterials Science
• Tissue Engineering
• Nanotechnology

Background:

• Conventional electrospun membranes (2D) limit cell growth due to their packed structure and low porosity.
• Existing scaffolds often lack the necessary mechanical strength and biocompatibility for effective tissue regeneration.

Purpose of the Study:

• To develop a three-dimensional (3D) hierarchical multilayer scaffold with enhanced functionality.
• To improve mechanical properties, biocompatibility, and cellular interaction compared to traditional 2D electrospun membranes.

Main Methods:

• A modified gas-foaming technique was employed to create a macroporous 3D scaffold.
• Calcium hydroxide particles were in-situ deposited onto the scaffold fibers via sodium borohydride reduction of calcium salt.

Main Results:

• The 3D scaffold demonstrated enhanced mechanical properties and biocompatibility.
• Incorporation of calcium hydroxide promoted cellular infiltration, mineralization, and osteogenesis.
• The 3D structure facilitated greater cell penetration than 2D scaffolds.

Conclusions:

• The integrated 3D multilayer scaffold with calcium hydroxide offers improved performance over conventional 2D electrospun membranes.
• This approach shows potential for advancing the development of scaffolds for biomedical applications, particularly in bone tissue engineering.