"Exploring Products - Sunblock" is a hands-on activity comparing sunblock containing nanoparticles to ointment. Visitors learn how some sunblocks that rub in clear contain nanoparticles that block harmful rays from the sun.
This is a scanning electron microscope image of vertical arrays of zinc oxide (ZnO) nanowires on a sapphire substrate.
Zinc oxide (ZnO) is an ideal material for nanoscale optoelectronics, electronics, and biotechnology applications. Numerous ZnO-based devices have already been developed, including nanowire field effect transistors, piezoelectric nanogenerators, optically pumped nanolasers, and biosensors.
• SIZE: The sample displayed in the image is about 10 µm wide.
• IMAGING TOOL: Scanning electron microscope
This scanning electron microscope image shows a zinc oxide (ZnO) nanowire photodetector device grown by photolithography.