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Updated: Mar 2, 2026
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Synthesis of Information-bearing Peptoids and their Sequence-directed Dynamic Covalent Self-assembly
Published on: February 6, 2020
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Cross-linking of a biopolymer-peptide co-assembling system
Karla E Inostroza-Brito1, Estelle C Collin1, Anna Majkowska1
1Institute of Bioengineering, Queen Mary University of London, London E1 4NS, UK; School of Engineering & Materials Science, Queen Mary University of London, London E1 4NS, UK.
Acta Biomaterialia
|May 23, 2017
Summary
Genipin effectively stabilizes dynamic biopolymer-peptide co-assemblies, enhancing mechanical properties and biocompatibility for tissue engineering applications. This natural cross-linker offers superior stability and cytocompatibility compared to synthetic alternatives.
Area of Science:
- Biomaterials Science
- Tissue Engineering
- Nanotechnology
Background:
- Molecular self-assembly enables the creation of complex functional biomaterials for tissue repair.
- Maintaining the stability and functionality of these materials in physiological conditions is a significant challenge.
- Chemical cross-linking is a common strategy to improve the structural integrity of biomaterials.
Purpose of the Study:
- To explore synthetic and natural cross-linking agents for stabilizing biopolymer-peptide co-assemblies.
- To investigate the efficiency, degradation resistance, mechanical properties, and biocompatibility of different cross-linked membranes.
- To identify optimal cross-linking strategies for self-assembling materials in biomedical applications.
Main Methods:
- Developed a dynamic biopolymer-peptide co-assembly system.
- Tested synthetic cross-linkers (succinimidyl carboxymethyl ester, poly (ethylene glycol) ether tetrasuccinimidyl glutarate, glutaraldehyde) and natural genipin.
- Assessed cross-linking efficiency, enzymatic degradation resistance, and mechanical properties.
- Evaluated in vitro cytocompatibility using adipose-derived stem cells (ADSC).
Main Results:
- All tested cross-linkers stabilized the biopolymer-peptide co-assembly system.
- Genipin-cross-linked membranes showed superior resistance to physiological environments and enzymatic degradation.
- Genipin-cross-linked membranes exhibited higher in vitro cytocompatibility with ADSCs.
- Genipin enhanced the mechanical properties of the self-assembling system without compromising bioactivity.
Conclusions:
- Genipin is a promising natural cross-linker for stabilizing dynamic self-assembling structures.
- Genipin offers improved functional stability, biocompatibility, and degradation resistance for biomaterials.
- Genipin is an attractive candidate for applications in tissue engineering and drug delivery systems.
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