Some key applications of gold nanoparticles include photonics, medicine and catalysis. 3 Gold nanoparticles have a high absorption cross-section in the visible and infrared regions, which can be tuned ...

Scientists found solid gold particles inside Norway spruce needles in Finland. Microbes in tree tissues transform dissolved gold ions into solid nanoparticles. Trees may help trace underground ...

Since the 1950s, scientists have worked around this problem by coating samples with a thin layer of gold before imaging. While this approach made electron microscopy possible for countless discoveries ...