A 52-year-old Russian national, Alexander Suvorov, has been extradited from Sweden to the US to face charges of allegedly running a procurement network that smuggled American-made electronic components with military applications to Russia through Hong Kong-based front companies

Optogenetics involves controlling nerve signals with light, and helps researchers understand how specific cell types contribute to behaviours like learning, fear, addiction and movement. The trio were honoured "for their discovery of a molecular switch for nerve cells", the Nobel Assembly said