Performance of PRP Associated with Porous Chitosan as a Composite Scaffold for Regenerative Medicine

Figure 5

Release profiles of growth factors from P-PRP in porous chitosan scaffolds as a function of ((a), (b)) chitosan concentrations and ((c), (d)) freezing conditions. (■) PCHTs 1% (−20°C); (●) PCHTs 2% (−20°C); (▲) PCHTs 3% (−20°C); (□) PCHTs 3% (−80°C), (O) PCHTs 3% (−196°C), and () P-PRP activated with Ca⁺²/thrombin (used as control); TGF-β1 ((a), (c)); and PDGF-AB ((b), (d)). The concentration of platelets in P-PRP was 472,250 pq/mm³. Activated P-PRP alone was used as control.

(a)

(b)

(c)

(d)