Fabrication of a novel biomaterial with enhanced mechanical and conducting properties

Conducting polymers have combined advantages of metal conductivity with ease in processing and biocompatibility, making them extremely versatile for biosensor and tissue engineering applications.

Studying of B, N, S, Si and P Doped (5, 5) Carbon Nanotubes by the Density Functional Theory

The B, N, S, Si and P atoms doped single walled (5, 5) carbon nanotubes were studied by density functional theory B3LYP/3-21G (d) with the periodic boundary conditions. The ultra long tube models were calculated and the structures, energies and the band structures were obtained. The N, Si and S doped nanotubes have narrow energy gap with metal conductivity whereas B and P doped nanotubes have overlapped energy gaps with or semi-metal conductivity.