Abstract
We have used the pH-induced self-assembly of a peptide-amphiphile to make a nanostructured fibrous scaffold reminiscent of extracellular matrix. The design of this peptide-amphiphile allows the nanofibers to be reversibly cross-linked to enhance or decrease their structural integrity. After cross-linking, the fibers are able to direct mineralization of hydroxyapatite to form a composite material in which the crystallographic c axes of hydroxyapatite are aligned with the long axes of the fibers. This alignment is the same as that observed between collagen fibrils and hydroxyapatite crystals in bone.
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Publication Info
- Year
- 2001
- Type
- article
- Volume
- 294
- Issue
- 5547
- Pages
- 1684-1688
- Citations
- 3546
- Access
- Closed
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Identifiers
- DOI
- 10.1126/science.1063187