Figure 2From: Intrinsically superparamagnetic Fe-hydroxyapatite nanoparticles positively influence osteoblast-like cell behaviourAnalysis of cell viability. Cell viability was analysed by the Live/Dead assay (n = 2). Calcein AM stains for live cells in green, EthD-1 stains for dead cells in red. A) HA 1000 μg/ml at day 3. B) FeHA 1000 μg/ml at day 3. C) HA 200 μg/ml at day 7. D) FeHA 200 μg/ml at day 7. Scale bars: A,B) 200 μm. C,D) 100 μm.Back to article page