New research could help usher in a new generation of high-definition displays, optoelectronic devices, photodetectors, and more. They have shown that a class of “soft” semiconductors can be used to emit multiple, bright colors from a single nanowire at resolutions as small as 500 nanometers. The work could challenge quantum dot displays that rely upon traditional semiconductor nanocrystals to emit light.

Discovering the function of a gene requires cloning a DNA sequence and expressing it. Until now, this was performed on a one-gene-at-a-time basis, causing a bottleneck. Scientists have invented a technology to clone thousands of genes simultaneously and create massive libraries of proteins from DNA samples, potentially ushering in a new era of functional genomics.

Dr Hot Deal via eBay offers this 10-Piece Pedicure / Manicure Set for $5.99 with free shipping. That's tied with last week's mention and the lowest price we could find by $8. It includes a large nail clipper, small nail clipper, pair of tweezers, pair of nail scissors, cuticle pusher, nail file, nail cleaner, cuticle trimmer, ear cleaner, and a cuticle knife.

Melania Trump announced Timothy Harleth has been appointed White House chief usher

BBC's Barbara Plett Usher looks at what lays behind US moves to flood the region with weapons.

This is a rollback, not a reversal, of Obama's Cuba policy, says Barbara Plett Usher.

BBC's Barbara Plett Usher looks at what lays behind US moves to flood the region with weapons.

Four diverse women were selected to be faces of fall campaign.