How Cheese Helped Extract Gold From E-Waste

ETH Zurich researchers have reported discovering an effective method for recovering gold from e-waste with the help of byproducts from the cheesemaking process. 

Protein Fibre Sponge 

The group of researchers, led by ETH Professor Mezzenga, have reported using a sponge made from a protein matrix (a cheesemaking byproduct) to extract gold from e-waste.