Researchers at Northwestern University, US, have unveiled a water- and oil-resistant material developed from graphene oxide. The new coating offers an alternative to harmful plastics and toxic per- and polyfluoroalkyl substances (PFAS) often found in tableware and food packaging. The graphene oxide-derived material is non-toxic and environmentally friendly, according to the researchers. When applied to paper-based F&B packaging, it improves the strength of the product, potentially eliminating flimsy paper plates and takeout boxes. The packaging remains recyclable and compostable after use, offering a closed-loop, sustainable solution.