Metals and alloys comment, June 2013

Strontium stimulates stem cells to form bone

Bioglass nanoparticles containing strontium ions stimulate human-derived stem cells to differentiate into bone-forming cells

Quantum leap for new superconducting diode

By forming Josephson junctions between layers of semiconductors and superconductors, researchers have developed a superconducting diode.

Pyramid-shaped gold nanoparticles assemble into complex crystals

Scientists have shown that DNA can control the assembly of bipyramidal gold nanoparticles into a complex crystal structure known as a clathrate.

Novel metamaterial stays cool in the sun

A novel metamaterial film can cool objects by reflecting incoming solar energy while also allowing the surface to shed its own heat.

Fourth-generation biomedical materials