ZnO hedgehog-like structures for control cell cultivation

► We grow biocompatible zinc oxide hedgehog-like structures on glass substrates. ► We use hydrothermal method at low temperature at different reaction times. ► The increase of the reaction time resulted in the change of ZnO morphology. ► We examine the effect of ZnO microstructures on the cultivation of osteosarcoma cells (SAOS-2). ► Additionally, we measure the optical absorption.