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Issue 19, 2011
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Design of a shear-thinning recoverable peptide hydrogel from native sequences and application for influenza H1N1 vaccine adjuvant

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Abstract

Peptide hydrogels are considered injectable materials for drug delivery and tissue engineering applications. Most published hydrogel-forming sequences contain either alternating-charged and non-charged residues or amphiphilic blocks. Here, we report a self-assembling peptide, h9e (FLIVIGSIIGPGGDGPGGD), designed by rationally combining two native sequences from an elastic segment of spider silk and a trans-membrane segment of human muscle L-type calcium channel. The turning segment GSII of h9e promoted hydrogel formation in both Ca2+ solution and acidic pH conditions at water content greater than 99.5%. Although h9e Ca2+ hydrogel and h9e acidic hydrogel have the same sequence, they have distinct physical properties. The shear-thinning, rapid-strength-recovering h9e Ca2+ hydrogel was used as an H1N1 influenza vaccine adjuvant. The h9e adjuvant was biologically safe and improved immune response by ∼70% compared with an oil-based commercial adjuvant.

Graphical abstract: Design of a shear-thinning recoverable peptide hydrogel from native sequences and application for influenza H1N1 vaccine adjuvant

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Supplementary files

Article information


Submitted
29 Jan 2011
Accepted
25 Jun 2011
First published
20 Jul 2011

Soft Matter, 2011,7, 8905-8912
Article type
Paper

Design of a shear-thinning recoverable peptide hydrogel from native sequences and application for influenza H1N1 vaccine adjuvant

H. Huang, J. Shi, J. Laskin, Z. Liu, D. S. McVey and X. S. Sun, Soft Matter, 2011, 7, 8905
DOI: 10.1039/C1SM05157A

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