This paper presents the results of protein binding detection using single wall carbon nanotube network junctions as the transducer channel. The carbon nanotube junctions have been fabricated by using surface programmed assembly, where the carbon nanot...
This paper presents the results of protein binding detection using single wall carbon nanotube network junctions as the transducer channel. The carbon nanotube junctions have been fabricated by using surface programmed assembly, where the carbon nanotubes align themselves and assemble in predefined patterns without using any external force or unconventional process like high temperature treatment,etc. This process leaves exposed the SiO<SUB>2</SUB> surface on which the carbon nanotubes are assembled. This enables biotin immobilization by simple chemistry. When streptavidin is injected, the strong binding between biotin and streptavidin is detected by the carbon nanotube junction, yielding a highly sensitive streptavidin sensor for protein binding studies.