Fig. 15From: Multienzymes activity of metals and metal oxide nanomaterials: applications from biotechnology to medicine and environmental engineeringa Schematic illustration of MFMSNs. b CLSM images of HIF-1α (green) and F-actin (red) in cells incubated with MFMSN under normoxic or hypoxic condition, and c corresponding fluorescence intensity (n = 3). Scale bar, 20 μm. **P < 0.01Back to article page