Evidence of a molecular boundary lubricant at snakeskin surfaces

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Evidence of a molecular boundary lubricant at snakeskin surfaces. / Baio, Joe E.; Spinner, Marlene; Jaye, Cherno; Fischer, Daniel A; Gorb, Stanislav N; Weidner, Tobias.

I: Journal of the Royal Society. Interface, Bind 12, Nr. 113, 2015, s. 20150817, 1-8.

Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avisTidsskriftartikelForskningpeer review

Harvard

Baio, JE, Spinner, M, Jaye, C, Fischer, DA, Gorb, SN & Weidner, T 2015, 'Evidence of a molecular boundary lubricant at snakeskin surfaces', Journal of the Royal Society. Interface, bind 12, nr. 113, s. 20150817, 1-8. https://doi.org/10.1098/rsif.2015.0817

APA

Baio, J. E., Spinner, M., Jaye, C., Fischer, D. A., Gorb, S. N., & Weidner, T. (2015). Evidence of a molecular boundary lubricant at snakeskin surfaces. Journal of the Royal Society. Interface, 12(113), 20150817, 1-8. https://doi.org/10.1098/rsif.2015.0817

CBE

Baio JE, Spinner M, Jaye C, Fischer DA, Gorb SN, Weidner T. 2015. Evidence of a molecular boundary lubricant at snakeskin surfaces. Journal of the Royal Society. Interface. 12(113):20150817, 1-8. https://doi.org/10.1098/rsif.2015.0817

MLA

Baio, Joe E. o.a.. "Evidence of a molecular boundary lubricant at snakeskin surfaces". Journal of the Royal Society. Interface. 2015, 12(113). 20150817, 1-8. https://doi.org/10.1098/rsif.2015.0817

Vancouver

Baio JE, Spinner M, Jaye C, Fischer DA, Gorb SN, Weidner T. Evidence of a molecular boundary lubricant at snakeskin surfaces. Journal of the Royal Society. Interface. 2015;12(113):20150817, 1-8. https://doi.org/10.1098/rsif.2015.0817

Author

Baio, Joe E. ; Spinner, Marlene ; Jaye, Cherno ; Fischer, Daniel A ; Gorb, Stanislav N ; Weidner, Tobias. / Evidence of a molecular boundary lubricant at snakeskin surfaces. I: Journal of the Royal Society. Interface. 2015 ; Bind 12, Nr. 113. s. 20150817, 1-8.

Bibtex

@article{ca20160e06a646ea935e65931473eb44,
title = "Evidence of a molecular boundary lubricant at snakeskin surfaces",
abstract = "During slithering locomotion the ventral scales at a snake's belly are in direct mechanical interaction with the environment, while the dorsal scales provide optical camouflage and thermoregulation. Recent work has demonstrated that compared to dorsal scales, ventral scales provide improved lubrication and wear protection. While biomechanic adaption of snake motion is of growing interest in the fields of material science and robotics, the mechanism for how ventral scales influence the friction between the snake and substrate, at the molecular level, is unknown. In this study, we characterize the outermost surface of snake scales using sum frequency generation (SFG) spectra and near-edge X-ray absorption fine structure (NEXAFS) images collected from recently shed California kingsnake (Lampropeltis californiae) epidermis. SFG's nonlinear optical selection rules provide information about the outermost surface of materials; NEXAFS takes advantage of the shallow escape depth of the electrons to probe the molecular structure of surfaces. Our analysis of the data revealed the existence of a previously unknown lipid coating on both the ventral and dorsal scales. Additionally, the molecular structure of this lipid coating closely aligns to the biological function: lipids on ventral scales form a highly ordered layer which provides both lubrication and wear protection at the snake's ventral surface.",
keywords = "Absorptiometry, Photon, Animals, Colubridae, Epidermis, Lipids, Lubricants, Journal Article, Research Support, Non-U.S. Gov't, Research Support, U.S. Gov't, Non-P.H.S.",
author = "Baio, {Joe E.} and Marlene Spinner and Cherno Jaye and Fischer, {Daniel A} and Gorb, {Stanislav N} and Tobias Weidner",
note = "{\textcopyright} 2015 The Author(s).",
year = "2015",
doi = "10.1098/rsif.2015.0817",
language = "English",
volume = "12",
pages = "20150817, 1--8",
journal = "Journal of the Royal Society. Interface",
issn = "1742-5689",
publisher = "The/Royal Society",
number = "113",

}

RIS

TY - JOUR

T1 - Evidence of a molecular boundary lubricant at snakeskin surfaces

AU - Baio, Joe E.

AU - Spinner, Marlene

AU - Jaye, Cherno

AU - Fischer, Daniel A

AU - Gorb, Stanislav N

AU - Weidner, Tobias

N1 - © 2015 The Author(s).

PY - 2015

Y1 - 2015

N2 - During slithering locomotion the ventral scales at a snake's belly are in direct mechanical interaction with the environment, while the dorsal scales provide optical camouflage and thermoregulation. Recent work has demonstrated that compared to dorsal scales, ventral scales provide improved lubrication and wear protection. While biomechanic adaption of snake motion is of growing interest in the fields of material science and robotics, the mechanism for how ventral scales influence the friction between the snake and substrate, at the molecular level, is unknown. In this study, we characterize the outermost surface of snake scales using sum frequency generation (SFG) spectra and near-edge X-ray absorption fine structure (NEXAFS) images collected from recently shed California kingsnake (Lampropeltis californiae) epidermis. SFG's nonlinear optical selection rules provide information about the outermost surface of materials; NEXAFS takes advantage of the shallow escape depth of the electrons to probe the molecular structure of surfaces. Our analysis of the data revealed the existence of a previously unknown lipid coating on both the ventral and dorsal scales. Additionally, the molecular structure of this lipid coating closely aligns to the biological function: lipids on ventral scales form a highly ordered layer which provides both lubrication and wear protection at the snake's ventral surface.

AB - During slithering locomotion the ventral scales at a snake's belly are in direct mechanical interaction with the environment, while the dorsal scales provide optical camouflage and thermoregulation. Recent work has demonstrated that compared to dorsal scales, ventral scales provide improved lubrication and wear protection. While biomechanic adaption of snake motion is of growing interest in the fields of material science and robotics, the mechanism for how ventral scales influence the friction between the snake and substrate, at the molecular level, is unknown. In this study, we characterize the outermost surface of snake scales using sum frequency generation (SFG) spectra and near-edge X-ray absorption fine structure (NEXAFS) images collected from recently shed California kingsnake (Lampropeltis californiae) epidermis. SFG's nonlinear optical selection rules provide information about the outermost surface of materials; NEXAFS takes advantage of the shallow escape depth of the electrons to probe the molecular structure of surfaces. Our analysis of the data revealed the existence of a previously unknown lipid coating on both the ventral and dorsal scales. Additionally, the molecular structure of this lipid coating closely aligns to the biological function: lipids on ventral scales form a highly ordered layer which provides both lubrication and wear protection at the snake's ventral surface.

KW - Absorptiometry, Photon

KW - Animals

KW - Colubridae

KW - Epidermis

KW - Lipids

KW - Lubricants

KW - Journal Article

KW - Research Support, Non-U.S. Gov't

KW - Research Support, U.S. Gov't, Non-P.H.S.

U2 - 10.1098/rsif.2015.0817

DO - 10.1098/rsif.2015.0817

M3 - Journal article

C2 - 26655468

VL - 12

SP - 20150817, 1-8

JO - Journal of the Royal Society. Interface

JF - Journal of the Royal Society. Interface

SN - 1742-5689

IS - 113

ER -