DescriptionUK scientists have built a graphene sieve that converts saltwater into drinking water.Millions of people around the world lack access to a source of drinking water. A sieve based on graphene may have the answer. All around wondering graphene material has a new and exciting use case: it acts as a sieve to convert salt water into fresh drinking water.Research, which could potentially have a huge impact on the provision of safe drinking water for millions of people around the world who currently lack an adequate supply of it, was carried out by researchers at the University of Manchester in the UK - and published in the journal Nature Nanotechnology.More: MIT researchers have developed a sponge-like material 10 times stronger than it. Graphene oxide membranes are known to be promising candidates for filtration technologies, such as desalination, which activates salt water in drinking water, "Dr. Vasu Siddeswara Kalangi, one of the co-authors of the article. "The reason this can not be put into practice, however, is due to a problem with membrane inflammation when it comes into contact with water. As a result, it can not be used for the purpose of desalination. What we have done is to produce an efficient and scalable methodology to restrict this inflammation. "The reason graphene oxide membranes can act this way is due to the fact that water flows through small pores of the membrane, while larger ions are blocked from doing so. By working on how to avoid the problem of swelling, the Manchester-based group has found a way to precisely control the size of the pores in the membrane.