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Title: How Water Can Affect Keratin: Hydration‐Driven Recovery of Bighorn Sheep ( Ovis Canadensis ) Horns

Abstract

Abstract Keratin is one of the most common structural biopolymers exhibiting high strength, toughness, and low density. It is found in various tissues such as hairs, feathers, horns, and hooves with various functionalities. For instance, horn keratin absorbs a large amount of energy during intraspecific fights. Keratinized tissues are permanent tissues because of their basic composition consisting of dead keratinized cells that are not able to remodel or regrow once broken or damaged. The lack of a self‐healing mechanism presents a problem for horns, as they are under continued high risk from mechanical damage. In the present work, it is shown for the first time that a combination of material architecture and a water‐assisted recovery mechanism, in the horn of bighorn sheep, endows them with shape and mechanical property recoverability after being subjected to severe compressive loading. Moreover, the effect of hydration is unraveled, on the material molecular structure and mechanical behavior, by means of synchrotron wide angle X‐ray diffraction, Fourier transform infrared spectroscopy, nanoindentation, and in situ and ex situ tensile tests. The recovery and remodeling mechanism is anisotropic and quite distinct to the self‐healing of living tissue such as bones.

Authors:
 [1];  [2];  [3];  [4];  [5];  [6]; ORCiD logo [7]
  1. Materials Science and Engineering Program University of California San Diego La Jolla CA USA
  2. Theoretical and Applied Mechanics Program Northwestern University Evanston IL USA
  3. Department of NanoEngineering University of California San Diego, La Jolla CA USA
  4. Department of Chemical and Environment Engineering University of California Riverside CA USA
  5. Department of Materials Science and Engineering University of California Berkeley CA USA
  6. Theoretical and Applied Mechanics Program Northwestern University Evanston IL USA, Department of Mechanical Engineering Northwestern University Evanston IL USA
  7. Materials Science and Engineering Program University of California San Diego La Jolla CA USA, Department of Mechanical and Aerospace Engineering University of California San Diego La Jolla CA USA
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
1510092
Grant/Contract Number:  
DE‐AC02‐05CH11231
Resource Type:
Publisher's Accepted Manuscript
Journal Name:
Advanced Functional Materials
Additional Journal Information:
Journal Name: Advanced Functional Materials Journal Volume: 29 Journal Issue: 27; Journal ID: ISSN 1616-301X
Publisher:
Wiley Blackwell (John Wiley & Sons)
Country of Publication:
Germany
Language:
English

Citation Formats

Huang, Wei, Zaheri, Alireza, Yang, Wen, Kisailus, David, Ritchie, Robert O., Espinosa, Horacio, and McKittrick, Joanna. How Water Can Affect Keratin: Hydration‐Driven Recovery of Bighorn Sheep ( Ovis Canadensis ) Horns. Germany: N. p., 2019. Web. doi:10.1002/adfm.201901077.
Huang, Wei, Zaheri, Alireza, Yang, Wen, Kisailus, David, Ritchie, Robert O., Espinosa, Horacio, & McKittrick, Joanna. How Water Can Affect Keratin: Hydration‐Driven Recovery of Bighorn Sheep ( Ovis Canadensis ) Horns. Germany. https://doi.org/10.1002/adfm.201901077
Huang, Wei, Zaheri, Alireza, Yang, Wen, Kisailus, David, Ritchie, Robert O., Espinosa, Horacio, and McKittrick, Joanna. Mon . "How Water Can Affect Keratin: Hydration‐Driven Recovery of Bighorn Sheep ( Ovis Canadensis ) Horns". Germany. https://doi.org/10.1002/adfm.201901077.
@article{osti_1510092,
title = {How Water Can Affect Keratin: Hydration‐Driven Recovery of Bighorn Sheep ( Ovis Canadensis ) Horns},
author = {Huang, Wei and Zaheri, Alireza and Yang, Wen and Kisailus, David and Ritchie, Robert O. and Espinosa, Horacio and McKittrick, Joanna},
abstractNote = {Abstract Keratin is one of the most common structural biopolymers exhibiting high strength, toughness, and low density. It is found in various tissues such as hairs, feathers, horns, and hooves with various functionalities. For instance, horn keratin absorbs a large amount of energy during intraspecific fights. Keratinized tissues are permanent tissues because of their basic composition consisting of dead keratinized cells that are not able to remodel or regrow once broken or damaged. The lack of a self‐healing mechanism presents a problem for horns, as they are under continued high risk from mechanical damage. In the present work, it is shown for the first time that a combination of material architecture and a water‐assisted recovery mechanism, in the horn of bighorn sheep, endows them with shape and mechanical property recoverability after being subjected to severe compressive loading. Moreover, the effect of hydration is unraveled, on the material molecular structure and mechanical behavior, by means of synchrotron wide angle X‐ray diffraction, Fourier transform infrared spectroscopy, nanoindentation, and in situ and ex situ tensile tests. The recovery and remodeling mechanism is anisotropic and quite distinct to the self‐healing of living tissue such as bones.},
doi = {10.1002/adfm.201901077},
journal = {Advanced Functional Materials},
number = 27,
volume = 29,
place = {Germany},
year = {Mon Apr 29 00:00:00 EDT 2019},
month = {Mon Apr 29 00:00:00 EDT 2019}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1002/adfm.201901077

Citation Metrics:
Cited by: 23 works
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Works referenced in this record:

Mechanical Properties and the Structure of Hair
journal, November 1950


The effect of behaviour and body weight on the mechanical design of horns
journal, February 1985


Infrared spectroscopy of proteins
journal, September 2007


A mechanical property evaluation of graded density Al-Si10-Mg lattice structures manufactured by selective laser melting
journal, July 2016


The structure of the “amorphous” matrix of keratins
journal, May 2017


Deformation and energy absorption diagrams for cellular solids
journal, November 1984


Oriented Structure in Human Stratum Corneum Revealed by X-Ray Diffraction
journal, January 1991

  • Garson, Jean-Claude; Doucet, Jean; Lévêque, Jean-Luc
  • Journal of Investigative Dermatology, Vol. 96, Issue 1
  • DOI: 10.1111/1523-1747.ep12514716

Effect of water on the linear viscoelasticity of horn sheath keratin
journal, March 1987

  • Kitchener, Andrew
  • Journal of Materials Science Letters, Vol. 6, Issue 3
  • DOI: 10.1007/BF01729340

Molecular design of the α–keratin composite: insights from a matrix–free model, hagfish slime threads
journal, February 2004

  • Fudge, Douglas S.; Gosline, John M.
  • Proceedings of the Royal Society of London. Series B: Biological Sciences, Vol. 271, Issue 1536
  • DOI: 10.1098/rspb.2003.2591

Mechanical adaptability of the Bouligand-type structure in natural dermal armour
journal, October 2013

  • Zimmermann, Elizabeth A.; Gludovatz, Bernd; Schaible, Eric
  • Nature Communications, Vol. 4, Issue 1
  • DOI: 10.1038/ncomms3634

Fracture toughness of horns and a reinterpretation of the horning behaviour of bovids
journal, December 1987


Some Mechanical Properties of Wool Fibers in the "Hookean" Region from Zero to 100% Relative Humidity
journal, June 1971


Pangolin armor: Overlapping, structure, and mechanical properties of the keratinous scales
journal, September 2016


Analysis of nanoindentation creep for polymeric materials
journal, April 2004

  • Yang, Shuang; Zhang, Yong-Wei; Zeng, Kaiyang
  • Journal of Applied Physics, Vol. 95, Issue 7
  • DOI: 10.1063/1.1651341

Composite theory and the effect of water on the stiffness of horn keratin
journal, April 1987

  • Kitchener, Andrew; Vincent, Julian F. V.
  • Journal of Materials Science, Vol. 22, Issue 4
  • DOI: 10.1007/BF01233138

Functional design of horse hoof keratin: the modulation of mechanical properties through hydration effects
journal, July 1987

  • Bertram, J. E.; Gosline, J. M.
  • Journal of Experimental Biology, Vol. 130, Issue 1
  • DOI: 10.1242/jeb.130.1.121

Keratin: Structure, mechanical properties, occurrence in biological organisms, and efforts at bioinspiration
journal, March 2016


The Intermediate Filament Architecture as Determined by X-Ray Diffraction Modeling of Hard α-Keratin
journal, June 2004


The mechanical efficiency of natural materials
journal, July 2004


Water-assisted self-healing and property recovery in a natural dermal armor of pangolin scales
journal, March 2016

  • Liu, Z. Q.; Jiao, D.; Weng, Z. Y.
  • Journal of the Mechanical Behavior of Biomedical Materials, Vol. 56
  • DOI: 10.1016/j.jmbbm.2015.10.031

Insight into differences in nanoindentation properties of bone
journal, February 2013

  • Rodriguez-Florez, Naiara; Oyen, Michelle L.; Shefelbine, Sandra J.
  • Journal of the Mechanical Behavior of Biomedical Materials, Vol. 18
  • DOI: 10.1016/j.jmbbm.2012.11.005

Measurement of Creep Compliance of Solid Polymers by Nanoindentation
journal, January 2003


Mechanism study of biopolymer hair as a coupled thermo-water responsive smart material
journal, February 2017

  • Xiao, Xueliang; Zhou, Hongtao; Qian, Kun
  • Smart Materials and Structures, Vol. 26, Issue 3
  • DOI: 10.1088/1361-665X/aa52da

Biological materials: Functional adaptations and bioinspired designs
journal, November 2012


Analysis of the Humidity-Time Superposition for Wool Fibers
journal, December 1985


Microstructure and mechanical properties of different keratinous horns
journal, June 2018

  • Zhang, Yuchen; Huang, Wei; Hayashi, Cheryl
  • Journal of The Royal Society Interface, Vol. 15, Issue 143
  • DOI: 10.1098/rsif.2018.0093

The effects of water and microstructure on the mechanical properties of bighorn sheep (Ovis canadensis) horn keratin
journal, March 2011


A multi-scale approach to understand the mechanobiology of intermediate filaments
journal, January 2010


Characterization of polymeric structural foams under compressive impact loading by means of energy-absorption diagram
journal, May 2001


Nanoconfinement controls stiffness, strength and mechanical toughness of β-sheet crystals in silk
journal, March 2010

  • Keten, Sinan; Xu, Zhiping; Ihle, Britni
  • Nature Materials, Vol. 9, Issue 4
  • DOI: 10.1038/nmat2704

Energy absorbent natural materials and bioinspired design strategies: A review
journal, April 2010

  • McKittrick, J.; Chen, P. -Y.; Tombolato, L.
  • Materials Science and Engineering: C, Vol. 30, Issue 3
  • DOI: 10.1016/j.msec.2010.01.011

Viscoelastic properties of α-keratin fibers in hair
journal, December 2017


Effect of shampoo, conditioner and permanent waving on the molecular structure of human hair
journal, January 2015


The structure of people’s hair
journal, January 2014

  • Yang, Fei-Chi; Zhang, Yuchen; Rheinstädter, Maikel C.
  • PeerJ, Vol. 2
  • DOI: 10.7717/peerj.619

Animal Hairs as Water-stimulated Shape Memory Materials: Mechanism and Structural Networks in Molecular Assemblies
journal, May 2016

  • Xiao, Xueliang; Hu, Jinlian
  • Scientific Reports, Vol. 6, Issue 1
  • DOI: 10.1038/srep26393

Biological materials: Structure and mechanical properties
journal, January 2008


Structural Design Elements in Biological Materials: Application to Bioinspiration
journal, August 2015

  • Naleway, Steven E.; Porter, Michael M.; McKittrick, Joanna
  • Advanced Materials, Vol. 27, Issue 37
  • DOI: 10.1002/adma.201502403

The molecular configuration of α-keratin
journal, October 1961


Hair—the most sophisticated biological composite material
journal, January 2007

  • Popescu, Crisan; Höcker, Hartwig
  • Chemical Society Reviews, Vol. 36, Issue 8
  • DOI: 10.1039/b604537p

The effect of holding time on nanoindentation measurements of creep in bone
journal, April 2011


Remarkable shape memory effect of a natural biopolymer in aqueous environment
journal, October 2015


Lamellae spatial distribution modulates fracture behavior and toughness of african pangolin scales
journal, December 2017

  • Chon, Michael J.; Daly, Matthew; Wang, Bin
  • Journal of the Mechanical Behavior of Biomedical Materials, Vol. 76
  • DOI: 10.1016/j.jmbbm.2017.06.009

Designing the energy absorption capacity of functionally graded foam materials
journal, May 2009

  • Cui, Liang; Kiernan, Stephen; Gilchrist, Michael D.
  • Materials Science and Engineering: A, Vol. 507, Issue 1-2
  • DOI: 10.1016/j.msea.2008.12.011

The coiled-coil model of α-keratin structure
journal, October 1964


Hierarchies, multiple energy barriers, and robustness govern the fracture mechanics of  -helical and beta-sheet protein domains
journal, October 2007

  • Ackbarow, T.; Chen, X.; Keten, S.
  • Proceedings of the National Academy of Sciences, Vol. 104, Issue 42
  • DOI: 10.1073/pnas.0705759104

Hydration-induced nano- to micro-scale self-recovery of the tooth enamel of the giant panda
journal, November 2018


Measuring the constitutive behavior of viscoelastic solids in the time and frequency domain using flat punch nanoindentation
journal, March 2009

  • Herbert, E. G.; Oliver, W. C.; Lumsdaine, A.
  • Journal of Materials Research, Vol. 24, Issue 3
  • DOI: 10.1557/jmr.2009.0089

Hierarchical structure and compressive deformation mechanisms of bighorn sheep (Ovis canadensis) horn
journal, December 2017


On the tear resistance of skin
journal, March 2015

  • Yang, Wen; Sherman, Vincent R.; Gludovatz, Bernd
  • Nature Communications, Vol. 6, Issue 1
  • DOI: 10.1038/ncomms7649

Moisture, anisotropy, stress state, and strain rate effects on bighorn sheep horn keratin mechanical properties
journal, January 2017


The Mechanical Properties of Natural Materials. II. Microstructures for Mechanical Efficiency
journal, July 1995

  • Gibson, L. J.; Ashby, M. F.; Karam, G. N.
  • Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, Vol. 450, Issue 1938
  • DOI: 10.1098/rspa.1995.0076

Microstructure, elastic properties and deformation mechanisms of horn keratin
journal, February 2010


Bioinspired structural materials
journal, October 2014

  • Wegst, Ulrike G. K.; Bai, Hao; Saiz, Eduardo
  • Nature Materials, Vol. 14, Issue 1
  • DOI: 10.1038/nmat4089

Deformation mechanisms and energy absorption of polystyrene foams for protective helmets
journal, January 2002


Modelling the mechanical behavior of cellular materials
journal, March 1989