BES Highlights

On the left, a computer model depicts a self-assembled tetrahelix made up of tetrahedral quantum dots. On the right, a skeleton view of the tetrahelix demonstrates the chiral structure of the assembly.
Scientists image complex superstructures self-assembled from tetrahedral quantum dots, expanding our understanding of forming small, complex crystals.
In a novel simultaneous clean-and-repair mechanism, flowing oil-in-water droplets move nanoparticle (NP) debris, shown as green spheres, into the cracks. The droplets pick up the NPs, then deposit them in the cracked regions.
Simple fluid-driven nanoparticle catch-and-release process directs repair of cracks with debris from the damage.