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Clusters of Gold Atoms Form Peculiar Pyramidal Shape – First Time Remarkable Structure Imaged

2020-01-06

Clusters composed of a few atoms tend to be spherical. They are usually organized in shells of atoms around a central atom. This is the case for many elements, but not for gold! Experiments and advanced computations have shown that freestanding clusters of twenty gold atoms take on a pyramidal shape. They have a triangular ground plane made up of ten neatly arranged atoms, with additional triangles of six and three atoms, topped by a single atom [see figure where a model of twenty oranges is compared with the theoretical and experimental structure].

Innovative manufacturing technique can create new types of microparticles for applications such as drug delivery, diagnostics, and tissue engineering.

2020-03-12

Biomedical engineers at Duke University have devised a method for making small particles that are safe for living tissues that will allow them to create new shapes attractive for drug delivery, diagnostics, and tissue engineering. The results appear online on March 12, 2020, in the journal Nature Communications. “With nothing more than some heat and light, we can make some pretty bizarre microparticles,” said Stefan Roberts, a biomedical engineering research scientist at Duke. “The technique is simple enough that it could be scaled up to make billions of microparticles in a matter of minutes.”

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Clusters of Gold Atoms Form Peculiar Pyramidal Shape – First Time Remarkable Structure Imaged

Innovative manufacturing technique can create new types of microparticles for applications such as drug delivery, diagnostics, and tissue engineering.

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Nanomaterials science 2020

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Conference of Nanomaterials-science-2020

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Clusters of Gold Atoms Form Peculiar Pyramidal Shape – First Time Remarkable Structure Imaged

Innovative manufacturing technique can create new types of microparticles for applications such as drug delivery, diagnostics, and tissue engineering.