Low density of Earth's core due to oxygen and silicon impurities

During accretion and differentiation of the Earth, chemical interactions in a silicate magma ocean and liquid iron drove silicon and oxygen impurities into what went on to become the liquid outer core. Contrasting with previous ...

Using light to build nanoparticles into superstructures

Scientists in the Center for Nanoscale Materials and Argonne's Biosciences Division have demonstrated a remarkably simple, elegant, and cost-effective way of assembling nanoparticles into larger structures of any desired ...

Fingerprints of a gold cluster revealed

Nanometre-scale gold particles are currently intensively investigated for possible applications in catalysis, sensing, photonics, biolabelling, drug carriers and molecular electronics. The particles are prepared in a solution ...

Researchers discover new way diseases develop

Researchers from Mount Sinai School of Medicine have identified a previously unknown mechanism by which cells direct gene expression, the process by which information from a gene is used to direct the physical and behavioral ...

Graphene decharging and molecular shielding

A new joint theoretical and experimental study suggests that graphene sheets efficiently shield chemical interactions. One of the promising applications of this phenomenon is associated with improving the quality of 2D materials ...

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