Sought-after metals The researchers set up their workplaces. Photo: Monika Müller Source: FR In the Wolfgang Industrial Park in Hanau, a new Fraunhofer project group is researching how valuable materials such as rare earths can be replaced or better recycled. Bacteria can get the most out of old cell phones. Microbiologist Stefan Ratering treats - already dismantled - disused mobile phones with microorganisms in order to [...]