Preparation and application of HP-beta-CD (hydroxypropyl beta-cyclodextrin) functionalized GO (graphene oxide) composite material

• Main Authors: FENG HANGKONG, GUO RUIBIN, WANG RUIJUAN, MO ZUNLI, NIU XIAOHUI, ZHANG HONGJUAN, LI ZHENLIANG, YAN MIN
• Format: Patent
• Language: Chinese; English
• Published: 15.12.2017
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; DERIVATIVES THEREOF; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PHYSICS; POLYSACCHARIDES; TESTING; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

The invention discloses preparation and application of HP-beta-CD (hydroxypropyl beta-cyclodextrin) functionalized GO (graphene oxide) chiral composite material, and belongs to the fields of material preparation and electrochemical application. The preparation comprises the following steps of firstly, enabling beta-CD and propylene oxide to react under the alkaline condition, so as to prepare the HP-beta-CD; then, performing in-situ reduction on the GO and the HP-beta-CD by hydrazine hydrate, so as to obtain the HP-beta-CD functionalized GO (rGO-HP-beta-CD) composite material; finally, dripping and spraying the rGO-HP-beta-CD composite material to the surface of a GCE (glassy carbon electrode), so as to obtain a rGO-HP-beta-CD/GCE chiral electrochemical sensor. The preparation has the advantage that the tryptophan enantiomer is chirally identified by a DPV (differential pulse voltammetry) method, so that the stronger identifying ability on the D-tryptophan by the chiral electrochemical sensor is found. 本发明公开了