An electrochemical sensor for enantioselective recognition of electrochemically inactive phenylalanine (Phe) with high sensitivity was reported in this paper. The sensor was fabricated by the approach of thiolated β-cyclodextrin (SH-CD) assembled with Au nanoparticles, which were deposited on the glassy carbon electrode surface. The modified electrode was characterised by atomic force microscopy, X-ray photoelectron spectroscopy, attenuated total reflection IR spectroscopy, scanning electron microscopy and contact angle. The sensor was used to...
