**3. Pure carbon aggregates**

Carbon Nanotubes (CNTs) has interesting physicochemical properties as electrical conductance, high mechanical stiffness, light weight, transistor behavior, piezoresistance, thermal conductivity, luminescence, electrochemical bond expansion as well as their versatile chemistry make them superb materials for a broad spectrum of applications ranging from energy storage devices, nanosensors and drug/gene delivery vehicles.

Biomolecules and Pure Carbon Aggregates: An Application Towards "Green Electronics" http://dx.doi.org/10.5772/intechopen.73177 177

**Figure 4.** Representation of SWCNT and MWCNTs (armchair, zigzag and chiral).
