Sacrificial Ionic Bonds Need To Be Randomly Distributed To Provide Shear Deformability

[Image: see text] Multivalent ions are known to allow for reversible cross-linking in soft biological materials, providing stiffness and extensibility via sacrificial bonds. We present a simple model where stiff nanoscale elements carrying negative charges are coupled in shear by divalent mobile cat...

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Detalles Bibliográficos
Autores principales: Hartmann, Markus A., Fratzl, Peter
Formato: Texto
Lenguaje:English
Publicado: American Chemical Society 2009
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2762307/
https://www.ncbi.nlm.nih.gov/pubmed/19725552
http://dx.doi.org/10.1021/nl901816s
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author Hartmann, Markus A.
Fratzl, Peter
author_facet Hartmann, Markus A.
Fratzl, Peter
author_sort Hartmann, Markus A.
collection PubMed
description [Image: see text] Multivalent ions are known to allow for reversible cross-linking in soft biological materials, providing stiffness and extensibility via sacrificial bonds. We present a simple model where stiff nanoscale elements carrying negative charges are coupled in shear by divalent mobile cations in aqueous media. Such a shear coupling through a soft glue has, indeed, been proposed to operate in biological nanocomposites. While the coupling is elastic and brittle when the negative charges are periodically arranged, sufficient randomness in their distribution allows for large irreversible deformation.
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spelling pubmed-27623072009-10-15 Sacrificial Ionic Bonds Need To Be Randomly Distributed To Provide Shear Deformability Hartmann, Markus A. Fratzl, Peter Nano Lett [Image: see text] Multivalent ions are known to allow for reversible cross-linking in soft biological materials, providing stiffness and extensibility via sacrificial bonds. We present a simple model where stiff nanoscale elements carrying negative charges are coupled in shear by divalent mobile cations in aqueous media. Such a shear coupling through a soft glue has, indeed, been proposed to operate in biological nanocomposites. While the coupling is elastic and brittle when the negative charges are periodically arranged, sufficient randomness in their distribution allows for large irreversible deformation. American Chemical Society 2009-08-31 2009-10-14 /pmc/articles/PMC2762307/ /pubmed/19725552 http://dx.doi.org/10.1021/nl901816s Text en Copyright © 2009 American Chemical Society http://pubs.acs.org This is an open-access article distributed under the ACS AuthorChoice Terms & Conditions. Any use of this article, must conform to the terms of that license which are available at http://pubs.acs.org.
spellingShingle Hartmann, Markus A.
Fratzl, Peter
Sacrificial Ionic Bonds Need To Be Randomly Distributed To Provide Shear Deformability
title Sacrificial Ionic Bonds Need To Be Randomly Distributed To Provide Shear Deformability
title_full Sacrificial Ionic Bonds Need To Be Randomly Distributed To Provide Shear Deformability
title_fullStr Sacrificial Ionic Bonds Need To Be Randomly Distributed To Provide Shear Deformability
title_full_unstemmed Sacrificial Ionic Bonds Need To Be Randomly Distributed To Provide Shear Deformability
title_short Sacrificial Ionic Bonds Need To Be Randomly Distributed To Provide Shear Deformability
title_sort sacrificial ionic bonds need to be randomly distributed to provide shear deformability
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2762307/
https://www.ncbi.nlm.nih.gov/pubmed/19725552
http://dx.doi.org/10.1021/nl901816s
work_keys_str_mv AT hartmannmarkusa sacrificialionicbondsneedtoberandomlydistributedtoprovidesheardeformability
AT fratzlpeter sacrificialionicbondsneedtoberandomlydistributedtoprovidesheardeformability

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