Many polluting solvents used by the chemical industry can be replaced by an amazing new mixture of two powders: ‘deep-eutectic solvents’ (DES). This next generation of solvents are sustainable, much less flammable, not volatile and can draw contaminants from water beyond the capabilities of current solvents. On Tuesday, September 18 Dannie van Osch obtains his doctorate in this subject at Eindhoven University of Technology.