Carbon-Nanotube Biofibers

A procedure wherein biomolecules are used as both dispersant and coagulant for carbon nanotubes (CNTs) to enable wet-spinning of fibers is developed (see figure). These fibers have good mechanical strength (tensile strengths up to 170 MPa) and the highest electrical conductivity (as high as 130 S cm–1) for as-produced polymer-containing CNT fibers hitherto reported.