Our team has developed a layer-by-layer hydrophilic membrane (LHM) as the “bendable water-enabled portable power banks”. It is bendable, cost-effective, lightweight, environmental-friendly,high-efficient. Moreover, it could achieve high-voltage (~0.8 V), high-current (~80 μA)long-lasting (4 hr) power output by dropping a few drops of DI water (or electrolyte solutions), which can be described as a "black technology" towards green clean energy.

The chromium-doped zinc gallate, ZnGa2O4:Cr3+, material is viewed as a long-lasting luminescent phosphor which can avoid tissue autofluorescence interference for in vivo imaging detection. The cubic ZGC revealed a specific accumulation in liver0.5 Gy used at the end of X-ray excitation was sufficient for imaging of deep seated hepatic tumors.