Chitosan functionalized poly-ε-caprolactone electrospun fibers and 3D printed scaffolds as antibacterial materials for tissue engineering applications.

Surface modification strategy: Ar plasma activation of Poly-ε-caprolactone (PCL) scaffolds followed by UV photopolymerization of methacrylic acid N-hydroxysuccinimide ester (NHSMA) onto the plasma activated PCL surface and subsequent chitosan binding by NHS coupling with the grafted chains.