Scientists have been able to measure the ultrashort time delay in electron photoemission without using a clock. The discovery has important implications for fundamental research and cutting-edge technology.
Inspired by the hair of blue tarantulas, researchers made a structural-colored material that shows consistent color from all viewing directions. This finding overturns the conventional wisdom that long-range order photonic structures are always iridescent.
Using tiny snippets of DNA as 'barcodes', researchers have developed a new technique for rapidly screening the ability of nanoparticles to selectively deliver therapeutic genes to specific organs of the body.