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. 2015 Jul 30;10(7):e0134023. doi: 10.1371/journal.pone.0134023

Fig 7. Osteogenic potential.

Fig 7

ALP activity measurement [A] of osteoblasts grown on gold and Polypyrrole (PPy) doped with chondroitin sulfate (CS), dodecylbenzenesulfonate (DBS) and p-Toluene sulfonate (pTS). Gene expression of the bone specific genes RUNX2 [B], ALP [C], OCN [D], COL1A [E], OPN [F] and SPARC [G]. Gene expression levels were normalized based on the square root of the product formed by HPRT1 and YWHAZ and represents mean ± standard deviation normalized to gold control (n≥4). *p<0.05, **p<0.01 and ***p<0.001 v. gold control.