a blog by the NSF Center for Sustainable Nanotechnology
Two years ago, I wrote a blog post called Two Ways to Make Nanoparticles, describing the difference between top-down and bottom-up methods for making nanoparticles. In the post I commented, "we can estimate, knowing how gold atoms pack into crystals, that there are about 2000 gold atoms in one 4 nm diameter gold nanoparticle." Recently, a Sustainable Nano reader wrote in to ask about …
Continue reading "How can you calculate how many atoms are in a nanoparticle?"
You’ve read a lot on this blog about how nanoparticles provide amazing opportunities for developing new materials. Over the next few years, we will have incredible advances in sustainable energy, biology, and more based on these new substances that never existed before. But what about the old, structural materials used in our buildings and cars? …
Continue reading "Nano-Crystalline Metals and Sustainability"
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