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Live/dead staining of TFBs cultured on (A–C) pristine and (D–F) L/L0=50% crimped PLA nanofibers. TFBs in (B) and (E) subjected to 10% strain, while those in (C) and (F) subjected to 20% strain. The arrow in (A) indicates the alignment of the nanofibers and the direction of uniaxial strain externally applied.
