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. 2017 Sep 21;12(9):e0185125. doi: 10.1371/journal.pone.0185125

Fig 1. Ultrastructure and stiffness of decellularized porcine SAN relative to LV.

Fig 1

A) SEM images of decellularized pacemaking SAN showed a rope-like fibrous ECM compared to a mesh-like ECM in the contractile LV. (Scale bars: 20 μm) B) Young’s modulus measured by AFM was higher for decellularized SAN than LV (p<0.0001) indicating a stiffer matrix in the SAN than the LV.