Liquid metal controlled by low voltage reversibly switches color and infrared response in nanoscale surfaces, enabling low power reflective displays, sensors, and optical security features.

Light triggers atomic shifts in asymmetric 2D semiconductors, tuning their optical response. This enables compact, energy-efficient photonic chips and sensitive sensors.

Another year of UFC action is racing by, with numerous high-stakes fights in the books – and others lined up. Two other champions have vacated their belts this year, too: Ilia Topuria gave up the ...