Bioengineering Materials and Conditions for Obtaining Low Friction with PVA Hydrogels

Biological materials that make up the body organs and tissues are soft, wet and visco-elastic. Hydrogels can mimic these aspects and show promise for bio-medical applications. Their tribological properties are very important for promising applications such as artificial cartilage and bio-models for...

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Autores principales:	Boyko Stoimenov, Vincent Fridrici, Philippe Kapsa, Hiroyuki Kosukegawa, Makoto Ohta
Formato:	article
Lenguaje:	EN
Publicado:	Japanese Society of Tribologists 2013
Materias:	hydrogel friction elastomer friction endovascular biomodel artificial cartilage joint replacement ehl transition elastomer adhesion roughness and loss coefficient linear model fit Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/c18f0a63fea74ffbb68753152be1d8ed
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spelling	oai:doaj.org-article:c18f0a63fea74ffbb68753152be1d8ed2021-11-05T09:24:32ZBioengineering Materials and Conditions for Obtaining Low Friction with PVA Hydrogels1881-219810.2474/trol.8.140https://doaj.org/article/c18f0a63fea74ffbb68753152be1d8ed2013-01-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/trol/8/1/8_140/_pdf/-char/enhttps://doaj.org/toc/1881-2198Biological materials that make up the body organs and tissues are soft, wet and visco-elastic. Hydrogels can mimic these aspects and show promise for bio-medical applications. Their tribological properties are very important for promising applications such as artificial cartilage and bio-models for endovascular surgery training. The present study investigates the friction of polyvinyl alcohol (PVA) hydrogel against nine different metallic and non-metallic bio-compatible engineering materials likely to occur as countermaterials in these two applications. All the materials exhibited a characteristic velocity-dependent peak friction coefficient. Comparing the peaks, we find that lowest peak friction coefficient is produced by ceramics and glass (μ < 0.05), followed by metal alloys (μ < 0.05-0.08) and highest for polymers (0.4 < μ < 1.5), including PTFE which typically has very low-adhesion. Our results suggest that to achieve low friction, polymers should be avoided as a counter-material to PVA-hydrogels. It is also shown that PVA surface roughness is critical for achieving early transition to elasto-hydrodynamic lubrication and low friction, as shown in our comparative calculations with two different values of surface roughness of the gel. In the mixed lubrication region, the general trend is for friction to increase with roughness of the counterbody, but internal damping properties and adhesion also play important role, as shown by a simple linear model fit.Boyko StoimenovVincent FridriciPhilippe KapsaHiroyuki KosukegawaMakoto OhtaJapanese Society of Tribologistsarticlehydrogel frictionelastomer frictionendovascular biomodelartificial cartilagejoint replacementehl transitionelastomer adhesionroughness and loss coefficientlinear model fitPhysicsQC1-999Engineering (General). Civil engineering (General)TA1-2040Mechanical engineering and machineryTJ1-1570ChemistryQD1-999ENTribology Online, Vol 8, Iss 1, Pp 140-152 (2013)
institution	DOAJ
collection	DOAJ
language	EN
topic	hydrogel friction elastomer friction endovascular biomodel artificial cartilage joint replacement ehl transition elastomer adhesion roughness and loss coefficient linear model fit Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999
spellingShingle	hydrogel friction elastomer friction endovascular biomodel artificial cartilage joint replacement ehl transition elastomer adhesion roughness and loss coefficient linear model fit Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999 Boyko Stoimenov Vincent Fridrici Philippe Kapsa Hiroyuki Kosukegawa Makoto Ohta Bioengineering Materials and Conditions for Obtaining Low Friction with PVA Hydrogels
description	Biological materials that make up the body organs and tissues are soft, wet and visco-elastic. Hydrogels can mimic these aspects and show promise for bio-medical applications. Their tribological properties are very important for promising applications such as artificial cartilage and bio-models for endovascular surgery training. The present study investigates the friction of polyvinyl alcohol (PVA) hydrogel against nine different metallic and non-metallic bio-compatible engineering materials likely to occur as countermaterials in these two applications. All the materials exhibited a characteristic velocity-dependent peak friction coefficient. Comparing the peaks, we find that lowest peak friction coefficient is produced by ceramics and glass (μ < 0.05), followed by metal alloys (μ < 0.05-0.08) and highest for polymers (0.4 < μ < 1.5), including PTFE which typically has very low-adhesion. Our results suggest that to achieve low friction, polymers should be avoided as a counter-material to PVA-hydrogels. It is also shown that PVA surface roughness is critical for achieving early transition to elasto-hydrodynamic lubrication and low friction, as shown in our comparative calculations with two different values of surface roughness of the gel. In the mixed lubrication region, the general trend is for friction to increase with roughness of the counterbody, but internal damping properties and adhesion also play important role, as shown by a simple linear model fit.
format	article
author	Boyko Stoimenov Vincent Fridrici Philippe Kapsa Hiroyuki Kosukegawa Makoto Ohta
author_facet	Boyko Stoimenov Vincent Fridrici Philippe Kapsa Hiroyuki Kosukegawa Makoto Ohta
author_sort	Boyko Stoimenov
title	Bioengineering Materials and Conditions for Obtaining Low Friction with PVA Hydrogels
title_short	Bioengineering Materials and Conditions for Obtaining Low Friction with PVA Hydrogels
title_full	Bioengineering Materials and Conditions for Obtaining Low Friction with PVA Hydrogels
title_fullStr	Bioengineering Materials and Conditions for Obtaining Low Friction with PVA Hydrogels
title_full_unstemmed	Bioengineering Materials and Conditions for Obtaining Low Friction with PVA Hydrogels
title_sort	bioengineering materials and conditions for obtaining low friction with pva hydrogels
publisher	Japanese Society of Tribologists
publishDate	2013
url	https://doaj.org/article/c18f0a63fea74ffbb68753152be1d8ed
work_keys_str_mv	AT boykostoimenov bioengineeringmaterialsandconditionsforobtaininglowfrictionwithpvahydrogels AT vincentfridrici bioengineeringmaterialsandconditionsforobtaininglowfrictionwithpvahydrogels AT philippekapsa bioengineeringmaterialsandconditionsforobtaininglowfrictionwithpvahydrogels AT hiroyukikosukegawa bioengineeringmaterialsandconditionsforobtaininglowfrictionwithpvahydrogels AT makotoohta bioengineeringmaterialsandconditionsforobtaininglowfrictionwithpvahydrogels
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Bioengineering Materials and Conditions for Obtaining Low Friction with PVA Hydrogels

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