A new class of biosensors based on tobacco mosaic virus and coat proteins as enzyme nanocarrier

摘要

A new approach for the development of electrochemical biosensors using tobacco mosaic virus (TMV) nanotubes and coat protein (CP) aggregates as enzyme nanocarriers is presented. The generic approach has been demonstrated by realizing amperometric glucose sensors combining an array of Pt electrodes loaded with glucose oxidase (GOD)-modified TMV nanotubes and CPs as a model system. The presence of TMV nanotubes or CPs on the sensor surface allows binding of a high amount of enzymes without substantial loss of their activity. The obtained results underline the potential of integrating biomolecule/virus hybrids with electronic transducers for applications in biosensorics.