Nanopicture of the Day

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June 6, 2004

Polymer Coated Nanotube

Source:  Ray H. Baughman

      References:

"Improving the mechanical properties of single-walled carbon nanotube sheets by intercalation of polymeric adhesives" Coleman JN, Blau WJ, Dalton AB, Munoz E, Collins S, Kim BG, Razal J, Selvidge M, Vieiro G, Baughman RH APPLIED PHYSICS LETTERS 82 (11): 1682-1684 MAR 17 2003

"Controlled assembly of carbon nanotubes by designed amphiphilic peptide helices" Dieckmann GR, Dalton AB, Johnson PA, Razal J, Chen J, Giordano GM, Munoz E, Musselman IH, Baughman RH, Draper RK JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 125 (7): 1770-1777 FEB 19 2003

Description:

Carbon nanotubes have properties potentially useful in diverse electrical and mechanical nanoscale devices and for making strong, light materials. However, carbon nanotubes are difficult to solubilize and organize into architectures necessary for many applications.  By coating the nanotubes with polymers (such as peptides), the nanotubes can be kept in solution and aligned and assembled in to fibers and sheets.  These assemblies are strengthened by teh polymers binding the nanotubes together.  The size and morphology of the fibers can be controlled by manipulating solution conditions that affect peptide-peptide interactions.

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