Immobilized smart RNA on graphene oxide nanosheets to specifically recognize and adsorb trace peptide toxins in drinking water

► We covalently immobilize smart RNA (aptamer) on graphene oxide (GO) nanosheets. ► RNA-GO can resist nuclease and nature organic matter. ► RNA-GO can specially recognizes and adsorbs trace toxins in drinking water. ► RNA-GO can be used in environmental, chemical and biological science.