Flexible 3D nitrogen-doped carbon nanotubes nanostructure: A good matrix for enzyme immobilization and biosensing

To increase the protein capability and simplify biosensing fabrication, a three-dimensional (3D) nitrogen-doped carbon nanotubes (NCNTs) on free-standing electrospun carbon nanofibers film ([email protected]) was prepared via pyrolysis of pyridine. The density, size and nitrogen content of the “quasi-aligned” NCNT arrays can be easily controlled by modulating the growth temperature. By directly dropping the free-standing and flexible composite...