What to do with those cashew nut shells? Make sunblock
Soon you’ll be able to catch some rays and help save the planet at the same time, if these scientists have their way
A group of international scientists has come up with a way to use cashew nut shells to protect human skin from harmful rays from the sun.
The “green chemists” – Kennedy Ngwira, Jonas Kühlborn, Quintino Mgani, Charles de Koning and Till Opatz – believe there is a need to develop new, efficient and eco-friendly ultraviolet filters, ideally in a sustainable fashion.
De Koning from the Wits School of Chemistry said they extracted components from the cashew cut shells and converted them into functional molecules. One of the uses is potential sunscreen...