A chiral electrochemical sensor for propranolol based on multi-walled carbon nanotubes/ionic liquids nanocomposite

► A novel chiral electrochemical sensor for propranolol is developed. ► Chiral sensing results from an efficient chiral nanospace regarding quasi-chiral MWCNTs and versatile ILs. ► Its application to rapid detection of EF values matches the therapeutical and environmental needs.