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. 2014 Oct 4;16(3):245–254.

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Fig 4 — SEM micrograph of mouse embryonic stem cells (mESCs) on nanofibrous poly (ε-caprolactone) (PCL) scaffolds after 3 days of cell seeding: A. plasma treated aligned nanofibers (Ap-PCL), B. non-treated aligned nanofibers (A-PCL), C. plasma treated random nanofibers (Rp-PCL) and D. non-treated random (R-PCL) nanofibers.