Semiconductor-Encapsulated Peptide−Amphiphile Nanofibers

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 array...

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Bibliographic Details
Published in:Journal of the American Chemical Society 2004-10, Vol.126 (40), p.12756-12757
Main Authors: Sone, Eli D, Stupp, Samuel I
Format: Article
Language:English
Subjects:
Cadmium Compounds - chemistry
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Growth from solutions
Hydrogen-Ion Concentration
Hydroxyapatites - chemistry
Materials science
Methods of crystal growth
physics of crystal growth
Microscopy, Electron, Transmission
Nanostructures - chemistry
Oligopeptides - chemistry
Phosphoserine - analogs & derivatives
Physics
Semiconductors
Sulfides - chemistry
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Summary: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.
ISSN:0002-7863
1520-5126
DOI:10.1021/ja0499344