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240210s2024 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202309141
|2 doi
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|a pubmed24n1403.xml
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|a DE-627
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|a eng
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|a Huang, Jiajun
|e verfasserin
|4 aut
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|a One-Pot Construction of Articular Cartilage-Like Hydrogel Coating for Durable Aqueous Lubrication
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|c 2024
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|a Text
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Revised 09.05.2024
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2024 Wiley‐VCH GmbH.
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|a Articular cartilage has an appropriate multilayer structure and superior tribological properties and provides a structural paradigm for design of lubricating materials. However, mimicking articular cartilage traits on prosthetic materials with durable lubrication remains a huge challenge. Herein, an ingenious three-in-one strategy is developed for constructing an articular cartilage-like bilayer hydrogel coating on the surface of ultra-high molecular weight polyethylene (BH-UPE), which makes full use of conceptions of interfacial interlinking, high-entanglement crosslinking, and interface-modulated polymerization. The hydrogel coating is tightly interlinked with UPE substrate through hydrogel-UPE interchain entanglement and bonding. The hydrogel chains are highly entangled with each other to form a dense tough layer with negligible hysteresis for load-bearing by reducing the amounts of crosslinker and hydrophilic initiator to p.p.m. levels. Meanwhile, the polymerization of monomers in the top surface region is suppressed via interface-modulated polymerization, thus introducing a porous surface for effective aqueous lubrication. As a result, BH-UPE exhibits an ultralow friction coefficient of 0.0048 during 10 000 cycles under a load of 0.9 MPa, demonstrating great potential as an advanced bearing material for disc prosthesis. This work may provide a new way to build stable bilayer coatings and have important implications for development of biological lubricating materials
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|a Journal Article
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|a biomimetic articular cartilage
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|a hydrogel coating
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|a ultralow friction
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| 650 |
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|a ultra‐high molecular weight polyethylene
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|a Tang, Youchen
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Peng
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhou, Hao
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Li, He
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Cheng, Ziying
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wu, Yanfeng
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Xie, Zhongyu
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Cai, Zhaopeng
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wu, Dingcai
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Shen, Huiyong
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 36(2024), 19 vom: 08. Mai, Seite e2309141
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|g volume:36
|g year:2024
|g number:19
|g day:08
|g month:05
|g pages:e2309141
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|u http://dx.doi.org/10.1002/adma.202309141
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