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240108s2024 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202311855
|2 doi
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|a pubmed24n1380.xml
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|a eng
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|a Chu, Guangyu
|e verfasserin
|4 aut
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|a Mechanochemically Reprogrammed Interface Orchestrates Neutrophil Bactericidal Activity and Apoptosis for Preventing Implant-Associated Infection
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|c 2024
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Completed 19.04.2024
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|a Date Revised 19.04.2024
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2024 Wiley‐VCH GmbH.
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|a The onset of implant-associated infection (IAI) triggers a cascade of immune responses, which are initially dominated by neutrophils. Bacterial aggregate formation and hypoxic microenvironment, which occur shortly after implantation, may be two major risk factors that impair neutrophil function and lead to IAI. Here, the implant surface with phytic acid-Zn2+ coordinated TiO2 nanopillar arrays (PA-ZnTiNPs) and oxygen self-supporting CaO2 nanoparticles, named as CPZTs, is mechanochemically reprogrammed. The engineered CPZTs interface integrates multiple properties to inhibit the formation of nascent biofilm, encompassing antibacterial adhesion, mechanobactericidal effect, and chemobiocidal effect. Meanwhile, continuous oxygenation fuels the neutrophils with reactive oxygen species (ROS) for efficient bacterial elimination on the implant surface and inside the neutrophils. Furthermore, this surface modulation strategy accelerates neutrophil apoptosis and promotes M2 macrophage-mediated osteogenesis both in vitro and in a rat model of IAI. In conclusion, targeting neutrophils for immunomodulation is a practical and effective strategy to prevent IAI and promote bone-implant integration
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|a Journal Article
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|a implant‐associated infection
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|a metal–organic coordination
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| 650 |
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4 |
|a nanopillar array
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4 |
|a neutrophil
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|a self‐oxygenation
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|a Anti-Bacterial Agents
|2 NLM
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| 700 |
1 |
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|a Guan, Ming
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Jin, Jiale
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Luo, Yao
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Luo, Zhiyuan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Shi, Tingwang
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Liu, Tao
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhang, Chunlei
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Yue
|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), 16 vom: 01. Apr., Seite e2311855
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|x 1521-4095
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|g volume:36
|g year:2024
|g number:16
|g day:01
|g month:04
|g pages:e2311855
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|u http://dx.doi.org/10.1002/adma.202311855
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