Turning graphene channels on their heads (IMAGE) Brown University Caption The channels between graphene sheets are horizontal, which is not great for applications like water filtration. But researchers from Brown University have shown a way to flip those channels to make them vertical in relation to the sheets, which is an ideal filtration orientation. Credit Hurt lab / Brown University Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.