Advances in Understanding Hydrogel Lubrication
Since their inception, hydrogels have gained popularity among multiple fields, most significantly in biomedical research and industry. Due to their resemblance to biological tribosystems, a significant amount of research has been conducted on hydrogels to elucidate biolubrication mechanisms and thei...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-11-01
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| Series: | Colloids and Interfaces |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2504-5377/4/4/54 |
| _version_ | 1797547968225607680 |
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| author | Tooba Shoaib Rosa M. Espinosa-Marzal |
| author_facet | Tooba Shoaib Rosa M. Espinosa-Marzal |
| author_sort | Tooba Shoaib |
| collection | DOAJ |
| description | Since their inception, hydrogels have gained popularity among multiple fields, most significantly in biomedical research and industry. Due to their resemblance to biological tribosystems, a significant amount of research has been conducted on hydrogels to elucidate biolubrication mechanisms and their possible applications as replacement materials. This review is focused on lubrication mechanisms and covers friction models that have attempted to quantify the complex frictional characteristics of hydrogels. From models developed on the basis of polymer physics to the concept of hydration lubrication, assumptions and conditions for their applicability are discussed. Based on previous models and our own experimental findings, we propose the viscous-adhesive model for hydrogel friction. This model accounts for the effects of confinement of the polymer network provided by a solid surface and poroelastic relaxation as well as the (non) Newtonian shear of a complex fluid on the frictional force and quantifies the frictional response of hydrogels-solid interfaces. Finally, the review delineates potential areas of future research based on the current knowledge. |
| first_indexed | 2024-03-10T14:52:40Z |
| format | Article |
| id | doaj.art-36fd65c6a32b42b78ea3aa8160e60dcb |
| institution | Directory Open Access Journal |
| issn | 2504-5377 |
| language | English |
| last_indexed | 2024-03-10T14:52:40Z |
| publishDate | 2020-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Colloids and Interfaces |
| spelling | doaj.art-36fd65c6a32b42b78ea3aa8160e60dcb2023-11-20T20:51:36ZengMDPI AGColloids and Interfaces2504-53772020-11-01445410.3390/colloids4040054Advances in Understanding Hydrogel LubricationTooba Shoaib0Rosa M. Espinosa-Marzal1Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, 1304 W Green St, Urbana, IL 61801, USADepartment of Materials Science and Engineering, University of Illinois at Urbana-Champaign, 1304 W Green St, Urbana, IL 61801, USASince their inception, hydrogels have gained popularity among multiple fields, most significantly in biomedical research and industry. Due to their resemblance to biological tribosystems, a significant amount of research has been conducted on hydrogels to elucidate biolubrication mechanisms and their possible applications as replacement materials. This review is focused on lubrication mechanisms and covers friction models that have attempted to quantify the complex frictional characteristics of hydrogels. From models developed on the basis of polymer physics to the concept of hydration lubrication, assumptions and conditions for their applicability are discussed. Based on previous models and our own experimental findings, we propose the viscous-adhesive model for hydrogel friction. This model accounts for the effects of confinement of the polymer network provided by a solid surface and poroelastic relaxation as well as the (non) Newtonian shear of a complex fluid on the frictional force and quantifies the frictional response of hydrogels-solid interfaces. Finally, the review delineates potential areas of future research based on the current knowledge.https://www.mdpi.com/2504-5377/4/4/54hydrogelstribologybiolubricationfriction |
| spellingShingle | Tooba Shoaib Rosa M. Espinosa-Marzal Advances in Understanding Hydrogel Lubrication Colloids and Interfaces hydrogels tribology biolubrication friction |
| title | Advances in Understanding Hydrogel Lubrication |
| title_full | Advances in Understanding Hydrogel Lubrication |
| title_fullStr | Advances in Understanding Hydrogel Lubrication |
| title_full_unstemmed | Advances in Understanding Hydrogel Lubrication |
| title_short | Advances in Understanding Hydrogel Lubrication |
| title_sort | advances in understanding hydrogel lubrication |
| topic | hydrogels tribology biolubrication friction |
| url | https://www.mdpi.com/2504-5377/4/4/54 |
| work_keys_str_mv | AT toobashoaib advancesinunderstandinghydrogellubrication AT rosamespinosamarzal advancesinunderstandinghydrogellubrication |