Figure 4From: Synthetic osteogenic extracellular matrix formed by coated silicon dioxide nanospringsDifferentiation of osteoblasts grown on coated nanosprings. Cells were grown for 36 days under normal growth conditions or on the NS samples indicated in the graph. Levels of alkaline phosphatase activity normalized to total amount of protein were calculated for each sample. Bars represent average of 3 independent experiments. Error bars are the standard deviation.Back to article page