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The surface hydrophobicity of poly($\epsilon$-caprolactone) electrospunscaffolds prevents their interactions with cells and tissue integration. Plasmatreatment of the scaffolds enhances their hydrophilicity. However, thehydrophobicity of scaffolds is restored in about 30 days. In thiscommunication, we report the possibility of polycaprolactone electrospunscaffolds hydrophilization for more than 6 months. For that, diamond-likecoating was deposited on the scaffolds surface using pulsed vacuum arcdeposition technique in nitrogen atmosphere with sputtering of graphite target.It was established that single-side modification preserving scaffold structureis possible. The diamond-like coatings composition (sp2/sp3 hybridized carbonratio) was tunable with nitrogen pressure. In vitro tests with fibroblasts cellculture did not reveal any cytotoxic compounds in the samples extracts.

Pulsed vacuum arc deposition of nitrogen-doped diamond-like coatings for long-term hydrophilicity of electrospun polycaprolactone scaffolds