Electrospun polymer scaffolds modified with drugs for tissue engineering.

Area of Science:

• Biomaterials Science
• Tissue Engineering
• Nanotechnology

Background:

• Biodegradable polymers like Polylactide (PLDL) and Polycaprolactone (PCL) are used for bone tissue engineering scaffolds.
• These polymers exhibit poor cell recognition, limiting cell adhesion and proliferation.
• Mimicking the native bone extracellular matrix is crucial for effective bone regeneration.

Purpose of the Study:

• To fabricate nanofibrous scaffolds incorporating an ossein-hydroxyapatite complex (osteogenon).
• To enhance cell affinity and adhesion on PLDL and PCL scaffolds for bone tissue engineering.
• To evaluate the influence of osteogenon on scaffold microstructure, physicochemical, and mechanical properties.

Main Methods:

• Electrospinning was employed to fabricate PLDL/osteogenon and PCL/osteogenon nanofibrous scaffolds.
• Physicochemical parameters and mechanical properties of the scaffolds were analyzed.
• The impact of osteogenon on cell adhesion, proliferation, morphology, and differentiation was investigated.

Main Results:

• Osteogenon incorporation improved the microstructure and physicochemical properties of the scaffolds.
• Enhanced cell adhesion, proliferation, and differentiation were observed on osteogenon-containing scaffolds.
• The fabricated scaffolds show potential for bone tissue engineering applications.

Conclusions:

• Osteogenon-modified PLDL and PCL nanofibrous scaffolds effectively mimic the bone extracellular matrix.
• Osteogenon significantly enhances cellular responses, including mineralization, adhesion, and differentiation.
• These scaffolds represent a promising biomaterial for advancing bone tissue engineering strategies.