Friction and Wear Characterizations in Electrospun Nanofibrous Scaffolds for Cartilage Engineering
ABSTRACT Electrospun nanofibers are promising materials to treat articular cartilage (AC) defects. However, they still have lower mechanical properties than tissue. There are no standard protocols to test friction in electrospun materials. Only a few studies have reported electrospun mats’ coefficie...
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Wiley-VCH
2025-07-01
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| Series: | Nano Select |
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| Online Access: | https://doi.org/10.1002/nano.202400165 |
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| author | André Mathias Souza Plath Mohammad Alinezhadfar Stephen J. Ferguson |
| author_facet | André Mathias Souza Plath Mohammad Alinezhadfar Stephen J. Ferguson |
| author_sort | André Mathias Souza Plath |
| collection | DOAJ |
| description | ABSTRACT Electrospun nanofibers are promising materials to treat articular cartilage (AC) defects. However, they still have lower mechanical properties than tissue. There are no standard protocols to test friction in electrospun materials. Only a few studies have reported electrospun mats’ coefficient of friction (COF). This work aims to evaluate COF and wear for electrospun mats using a universal testing tribometer. Stainless steel, polyoxymethylene (POM), and rubber balls were rubbed against poly(ε‐caprolactone) (PCL) mats. There was a statistically significant difference between metal and rubber/plastic. This is attributed to surface chemistry. POM countersurfaces were rubbed at 1, 10, and 50 mm/s. The results show a small COF reduction proportional to speed and stick‐and‐slip behavior. Finally, we tested a PCL‐zein‐based material for its water contact angle reduction from 120° to 60°. The results demonstrated the lubrication efficiency (20% COF reduction) and hydrophobic‐hydrophilic contacts (33% COF reduction). The study successfully evaluates electrospun mats’ tribological properties. This is followed by the perspective of shear and friction biostimulation in electrospun surfaces. Furthermore, at the tested loads, the material had AC‐like COFs at boundary lubrication conditions. |
| format | Article |
| id | doaj-art-4c9333dfdba949c78ac099f53cadc372 |
| institution | Kabale University |
| issn | 2688-4011 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Wiley-VCH |
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| series | Nano Select |
| spelling | doaj-art-4c9333dfdba949c78ac099f53cadc3722025-08-20T03:28:24ZengWiley-VCHNano Select2688-40112025-07-0167n/an/a10.1002/nano.202400165Friction and Wear Characterizations in Electrospun Nanofibrous Scaffolds for Cartilage EngineeringAndré Mathias Souza Plath0Mohammad Alinezhadfar1Stephen J. Ferguson2Institute for Biomechanics, ETH Zurich Zurich SwitzerlandLaboratory for Surface Science and Coating Technologies EMPA Dubendorf Dubendorf SwitzerlandInstitute for Biomechanics, ETH Zurich Zurich SwitzerlandABSTRACT Electrospun nanofibers are promising materials to treat articular cartilage (AC) defects. However, they still have lower mechanical properties than tissue. There are no standard protocols to test friction in electrospun materials. Only a few studies have reported electrospun mats’ coefficient of friction (COF). This work aims to evaluate COF and wear for electrospun mats using a universal testing tribometer. Stainless steel, polyoxymethylene (POM), and rubber balls were rubbed against poly(ε‐caprolactone) (PCL) mats. There was a statistically significant difference between metal and rubber/plastic. This is attributed to surface chemistry. POM countersurfaces were rubbed at 1, 10, and 50 mm/s. The results show a small COF reduction proportional to speed and stick‐and‐slip behavior. Finally, we tested a PCL‐zein‐based material for its water contact angle reduction from 120° to 60°. The results demonstrated the lubrication efficiency (20% COF reduction) and hydrophobic‐hydrophilic contacts (33% COF reduction). The study successfully evaluates electrospun mats’ tribological properties. This is followed by the perspective of shear and friction biostimulation in electrospun surfaces. Furthermore, at the tested loads, the material had AC‐like COFs at boundary lubrication conditions.https://doi.org/10.1002/nano.202400165articular cartilageelectrospun scaffoldslubricationtribology |
| spellingShingle | André Mathias Souza Plath Mohammad Alinezhadfar Stephen J. Ferguson Friction and Wear Characterizations in Electrospun Nanofibrous Scaffolds for Cartilage Engineering Nano Select articular cartilage electrospun scaffolds lubrication tribology |
| title | Friction and Wear Characterizations in Electrospun Nanofibrous Scaffolds for Cartilage Engineering |
| title_full | Friction and Wear Characterizations in Electrospun Nanofibrous Scaffolds for Cartilage Engineering |
| title_fullStr | Friction and Wear Characterizations in Electrospun Nanofibrous Scaffolds for Cartilage Engineering |
| title_full_unstemmed | Friction and Wear Characterizations in Electrospun Nanofibrous Scaffolds for Cartilage Engineering |
| title_short | Friction and Wear Characterizations in Electrospun Nanofibrous Scaffolds for Cartilage Engineering |
| title_sort | friction and wear characterizations in electrospun nanofibrous scaffolds for cartilage engineering |
| topic | articular cartilage electrospun scaffolds lubrication tribology |
| url | https://doi.org/10.1002/nano.202400165 |
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