Tiny graphene sheets can start or stop ice crystals growing in water

Graphene particles that seed ice formation in water only need to be 8 square nanometres to kick-start the freezing process – any smaller and they can stop ice forming

Source:
https://www.newscientist.com/article/2228046-tiny-graphene-sheets-can-start-or-stop-ice-crystals-growing-in-water/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home