Semiconductor-encapsulated peptide-amphiphile nanofibers |
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| Authors: | Sone Eli D Stupp Samuel I |
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| Institution: | Department of Chemistry, Department of Materials Science & Engineering, and Feinberg School of Medicine, Northwestern University, 2220 Campus Drive, Evanston, IL 60208, USA. |
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| Abstract: | We report here on the use of peptide-amphiphile (PA) nanofibers displaying the S(P)RGD peptide sequence on their exterior as templates for the mineralization of cadmium sulfide (CdS). At low Cd:PA ratios, the nanofibers nucleate and organize quantum-confined 3-5 nm CdS nanocrystals into linear arrays. Tubular structures, in which the PA fibers are completely encapsulated by the semiconductor, are produced at higher Cd:PA ratios. |
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