Many molecules are so long that they can form knots, much like tying shoes. Whereas it is still disputed whether right- and left-handed people prefer to tie their knots in different directions, the knotting habits of molecules are now made much clearer.
The Nobel Prize in Chemistry 2023 rewards the discovery and development of quantum dots, nanoparticles so tiny that their size determines their properties. These smallest components of nanotechnology now spread their light from televisions and LED lamps, and can also guide surgeons when they remove tumour tissue, among many other things.
A group of three researchers earned the 2023 Nobel Prize in physics for work that has revolutionized how scientists study the electron - by illuminating molecules with attosecond-long flashes of light. But how long is an attosecond, and what can these infinitesimally short pulses tell researchers about the nature of matter?
Researchers develop 3D-printed microbots that harness living bacteria as onboard engines to enable wireless control using only structured light patterns.
