Biosurface and Biotribology最新文献_第4页

Surface roughness and its role in mediating cell adhesion on cobalt-chromium-molybdenum alloys 钴铬钼合金表面粗糙度及其对细胞粘附的调节作用

IF 1.6

Biosurface and Biotribology Pub Date : 2023-11-10 DOI: 10.1049/bsb2.12068

Satoshi Migita

引用次数: 0

Polyphenol-mediated construction of highly stable and bioactive selenium nanoparticles 多酚介导的高稳定性和生物活性硒纳米颗粒的构建

IF 1.6

Biosurface and Biotribology Pub Date : 2023-10-19 DOI: 10.1049/bsb2.12067

Rong Hu, Xiao Wang, Lu Han, Xiong Lu

引用次数: 0

Tribological characteristics of dimpled surfaces filled with dopamine-modified MoS2 多巴胺修饰二硫化钼填充表面的摩擦学特性

IF 1.6

Biosurface and Biotribology Pub Date : 2023-10-17 DOI: 10.1049/bsb2.12066

Tuo Qin, Aibing Yu, Shuo Zhao, Kefan Li, Shaochun Qi, Jiawang Ye

{"title":"Tribological characteristics of dimpled surfaces filled with dopamine-modified MoS2","authors":"Tuo Qin, Aibing Yu, Shuo Zhao, Kefan Li, Shaochun Qi, Jiawang Ye","doi":"10.1049/bsb2.12066","DOIUrl":"10.1049/bsb2.12066","url":null,"abstract":"To improve the tribological characteristics of dimples on the surface of 45 steel, the dimples were filled with MoS2 and MoS2 modified by dopamine (MoS2 @ DA), and ball-disk friction and wear tests were conducted. Specifically, the dimple filling gap, abrasion depth, and surface cross-sectional area of 45 steel were measured. The wear morphology of the friction ball and exfoliation of MoS2 in the dimples and the bending characteristics of the specimens were studied. The surface friction coefficient of MoS2 @ DA-filled specimen was 17.9% lower than MoS2-filled specimen, and the dimple filling gap was 70.1% lower, the surface abrasion depth was 5.8% lower, and the abrasion cross-sectional area was 17.7% smaller. Moreover, the bending strength of the MoS2 @ DA specimen was 3.27 times greater than that of the MoS2 specimen, and the exfoliation of MoS2 was slowed by filling with the MoS2 @ DA. Finally, the tribological characteristics were also superior for the specimens prepared with MoS2 @ DA.","PeriodicalId":52235,"journal":{"name":"Biosurface and Biotribology","volume":"9 4","pages":"142-150"},"PeriodicalIF":1.6,"publicationDate":"2023-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/bsb2.12066","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136034355","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Multifunctional hydrogels for chronic wounds repairing 多功能水凝胶用于慢性伤口修复

IF 1.6

Biosurface and Biotribology Pub Date : 2023-10-16 DOI: 10.1049/bsb2.12064

Xiao Wang, Rong Hu, Lu Han, Xiong Lu

引用次数: 0

A polyphenol-induced hydroxyapatite coating modulates corrosion resistance and biocompatibility of magnesium alloys 多酚诱导羟基磷灰石涂层调节镁合金的耐腐蚀性和生物相容性

IF 1.6

Biosurface and Biotribology Pub Date : 2023-10-09 DOI: 10.1049/bsb2.12065

Tao Chai, Hao Zhang, Xiaolong Shen, Haibo Wang, Xingping Fan, Binbin Wang, Dingying He, Jia Su

{"title":"A polyphenol-induced hydroxyapatite coating modulates corrosion resistance and biocompatibility of magnesium alloys","authors":"Tao Chai, Hao Zhang, Xiaolong Shen, Haibo Wang, Xingping Fan, Binbin Wang, Dingying He, Jia Su","doi":"10.1049/bsb2.12065","DOIUrl":"10.1049/bsb2.12065","url":null,"abstract":"In order to solve the problem of excessive degradation rate and insufficient biocompatibility of magnesium-based bone implants, a polyphenol (EGCG) induced hydroxyapatite (HA) coating was prepared on the surface of AZ31 alloy. The physical and chemical properties and corrosion resistance of the coating were analysed in depth, and its biocompatibility was preliminarily explored in vitro. The results showed that the polyphenol (EGCG) conversion coating constructed on the AZ31 could successfully induce the formation of HA by complexing the phenolic hydroxyl group with calcium ions. The electrochemical and long-term immersion experiments showed that the corrosion resistance of EGCG/HA composite coating was significantly improved. The self-corrosion current density, hydrogen evolution and the increase of pH value of AZ31-EGCG/HA were significantly lower than those of AZ31. On the basis of inhibiting the excessive corrosion of the substrate, the composite coating significantly improves the compatibility of pre-osteoblasts, supports the adhesion and spreading and effectively reduces the haemolysis rate to less than 5%. The preparation method of the coating is simple, low cost and suitable for complex shape surfaces, which can significantly improve the corrosion resistance and biocompatibility of the AZ31 substrate. It is expected to provide a solution for the surface modification of magnesium-based bone implants.","PeriodicalId":52235,"journal":{"name":"Biosurface and Biotribology","volume":"9 4","pages":"129-141"},"PeriodicalIF":1.6,"publicationDate":"2023-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/bsb2.12065","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135147220","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Bio-inspired low wear and durable lubrication interfacial system based on thixotropic hydrogel for artificial joints 基于触变性水凝胶的仿生低磨损耐用润滑界面系统

Biosurface and Biotribology Pub Date : 2023-09-07 DOI: 10.1049/bsb2.12063

Bin He, Chen Wang, Xiong Xiong, Jun Li, Zhongmin Jin, Shuxin Qu

{"title":"Bio-inspired low wear and durable lubrication interfacial system based on thixotropic hydrogel for artificial joints","authors":"Bin He, Chen Wang, Xiong Xiong, Jun Li, Zhongmin Jin, Shuxin Qu","doi":"10.1049/bsb2.12063","DOIUrl":"10.1049/bsb2.12063","url":null,"abstract":"Inspired by the excellent wear resistance and lubrication of articular joints, a novel bionic interfacial system was proposed by combining thixotropic hydrogel with surface porous Ultrahigh Molecular Weight Polyethylene (UHMWPE). Thixotropic hydrogel, synthesised by gelatin, alginate sodium, tannic acid and weak crosslinking by Ca2+ (Gel-TA-Alg@Ca2+), was used as a lubricant due to its shear-thinning when loaded, then the recovery viscosity to be benefitted for reserving in surface pores on UHMWPE when unloaded. Surface porous UHMWPE was fabricated by using hydroxyapatite particles as porogen to control its porosity, pore size, surface roughness and surface energy (PE-HA). Gel-TA-Alg@Ca2+ significantly reduced average coefficients of friction and wear factors compared to those under normal saline and calf serum solution lubricating after reciprocating tribological testing. Notably, Gel-TA-Alg@Ca2+ still maintained thixotropy and was stored in surface pores of UHMWPE even after tribological testing for 7200 min. Thus, durable lubrication could be realised due to the synergistic effect of surface porous structure and thixotropy. Stribeck curves showed the characterisations of mixed, elastohydrodynamic and hydrodynamic, but without boundary lubrications for PE-30HA under three lubricants. The present results might provide the potential application to construct the durable lubrication bionic articular joint interfacial system for artificial joints.","PeriodicalId":52235,"journal":{"name":"Biosurface and Biotribology","volume":"9 3","pages":"59-70"},"PeriodicalIF":0.0,"publicationDate":"2023-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/bsb2.12063","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43302131","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The influence of lubricant temperature on the wear of total knee replacements 润滑油温度对全膝关节置换术磨损的影响

Biosurface and Biotribology Pub Date : 2023-09-06 DOI: 10.1049/bsb2.12061

Raelene M. Cowie, Adam Briscoe, Louise M. Jennings

{"title":"The influence of lubricant temperature on the wear of total knee replacements","authors":"Raelene M. Cowie, Adam Briscoe, Louise M. Jennings","doi":"10.1049/bsb2.12061","DOIUrl":"10.1049/bsb2.12061","url":null,"abstract":"Experimental in vitro simulation can be used to predict the wear performance of total knee replacements. The in vitro simulation should aim to replicate the in vivo loading, motion and environment experienced by the joint, predicting wear and potential failure whilst minimising test artefacts. Experimental wear simulation can be sensitive to environmental conditions; the environment temperature is one variable which should be controlled and was the focus of this investigation. In this study, the wear of an all-polymer (PEEK-OPTIMA™ polymer-on-UHMWPE) total knee replacement and a conventional cobalt chrome-on-UHMWPE implant of similar initial surface topography and geometry were investigated under elevated temperature conditions. The wear was compared to a previous study of the same implants under simulator running temperature (i.e. without heating the test environment). Under elevated temperature conditions, the wear rate of the UHMWPE tibial inserts was low against both femoral component materials (mean <2 mm3/million cycles) and significantly lower (p < 0.05) than for investigations at simulator running temperature. Protein precipitation from the lubricant onto the component articulating surfaces is a possible explanation for the lower wear. This study highlights the need to understand the influence of different variables including environmental temperature to minimise the test artefacts during wear simulation which may affect the wear rates.","PeriodicalId":52235,"journal":{"name":"Biosurface and Biotribology","volume":"9 3","pages":"71-77"},"PeriodicalIF":0.0,"publicationDate":"2023-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/bsb2.12061","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45349423","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Morphology and gene expression of sex-determining region Y-box 9 and runt-related transcription factor 2 in centrifugally compressed cell collagen-combined constructs (C6) 离心压缩细胞-胶原联合构建体中性别决定区Y‐box 9和runt相关转录因子2的形态学和基因表达（C6）

Biosurface and Biotribology Pub Date : 2023-09-02 DOI: 10.1049/bsb2.12062

Xu Ye, Masashi Yamazaki, Wataru Ando, Norimasa Nakamura, Hiromichi Fujie

{"title":"Morphology and gene expression of sex-determining region Y-box 9 and runt-related transcription factor 2 in centrifugally compressed cell collagen-combined constructs (C6)","authors":"Xu Ye, Masashi Yamazaki, Wataru Ando, Norimasa Nakamura, Hiromichi Fujie","doi":"10.1049/bsb2.12062","DOIUrl":"10.1049/bsb2.12062","url":null,"abstract":"The authors previously developed a scaffold-free tissue-engineered construct (TEC) from mesenchymal stem cells (MSCs). Although the TEC exhibited even cell distribution and was successfully applied for cartilage repair in animal models, it is unsuitable for relatively large-scale cartilage defects due to its small size. To solve the problem, the authors recently developed a novel biomaterial, a centrifugally compressed cell-collagen combined construct (C6) from a mixture of MSCs and atelocollagen, both of which are subjected to centrifugation. The results of the previous study indicated that C6 exhibited high cell viability (70 %) and sufficient cell distribution similar to that of the TEC. In the present study, the morphology and gene expression of C6 were investigated. Histological examination indicated that C6 is six times thicker (approximately 1 mm) than the TEC after a 7-day culture. The C6 remained unchanged in scale with increased cell density after a 21-day culture. Scanning electron microscopic observation indicated that C6 exhibited interconnected and porous microstructures, while the TEC had close-knit microstructures. Reverse transcriptase-polymerase chain reaction analysis indicated that the expression of sex-determining region Y-box 9 and runt-related transcription factor 2 was significantly higher in C6 than that in TEC.","PeriodicalId":52235,"journal":{"name":"Biosurface and Biotribology","volume":"9 3","pages":"78-83"},"PeriodicalIF":0.0,"publicationDate":"2023-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/bsb2.12062","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48074706","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Tunable catalytic release of nitric oxide via copper-loaded coatings on titanium nanotubes for regulating biological performance 钛纳米管载铜涂层可调谐催化释放一氧化氮调节生物性能

Biosurface and Biotribology Pub Date : 2023-06-01 DOI: 10.1049/bsb2.12060

Zhiyong Li, Lu Zhang, Lei Zhou, Xin Li, Yuancong Zhao, Jin Wang

{"title":"Tunable catalytic release of nitric oxide via copper-loaded coatings on titanium nanotubes for regulating biological performance","authors":"Zhiyong Li, Lu Zhang, Lei Zhou, Xin Li, Yuancong Zhao, Jin Wang","doi":"10.1049/bsb2.12060","DOIUrl":"10.1049/bsb2.12060","url":null,"abstract":"Severe lesions in vessels need to be treated with implantable interventional devices such as vascular stents, which should be anti-coagulantion, anti-proliferation and promoting endothelialisation. Nitric oxide (NO), as a physiological gas signalling molecule, play an important role in revascularisation. Catalysing the release of NO from endogenous donors has already been widely favoured to treatment strategy for lesioned vessels. In this work, a series of copper-loaded coatings (titanium nanotube (TNT)/PDA-Cu) was fabricated by TNTs combined with polydopamine and ions, which achieve controlled in situ catalytic release of NO. This strategy could effectively immobilised copper ions on TNTs, and promoted the proliferation of endothelial cells and inhibited growth of smooth muscle cells (SMCs) via the performance of NO, as well as restrain the platelet adhesion. With the multiple function, TNT/PDA-Cu provides a promise approach for promoting endothelialisation, anti-coagulation and inhibition of SMC proliferation via copper-loaded coatings on TNTs.","PeriodicalId":52235,"journal":{"name":"Biosurface and Biotribology","volume":"9 2","pages":"45-57"},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/bsb2.12060","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46826029","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Investigation on baicalin-loaded chitosan film crosslinked by graphene oxide and its biocompatibility 氧化石墨烯交联负载黄芩苷壳聚糖膜及其生物相容性研究

Biosurface and Biotribology Pub Date : 2023-06-01 DOI: 10.1049/bsb2.12059

Yu Zhu, Lu Zhang, Lei Zhou, Xin Li, Yuancong Zhao, Jin Wang

{"title":"Investigation on baicalin-loaded chitosan film crosslinked by graphene oxide and its biocompatibility","authors":"Yu Zhu, Lu Zhang, Lei Zhou, Xin Li, Yuancong Zhao, Jin Wang","doi":"10.1049/bsb2.12059","DOIUrl":"10.1049/bsb2.12059","url":null,"abstract":"Chitosan has good biocompatibility, in vivo biodegradability and certain physiological activity, which can be used as a drug carrier to stabilise and protect drug components, causing the promotion of drug absorption and controlling drug release. Using graphene oxide (GO) as a cross-linking agent, the functional groups in its lamellar structure can interact effectively with the functional groups in chitosan molecules, leading to enhanced mechanical properties and optimize the controlled drug-release behaviour. GO/chitosan composite films were prepared by the solution mixing method with various GO content and exhibit many hydrogen bonds between the GO and chitosan. There were no obviously agglomerated GO particles in the surface of composite films, and the lamellar structure can be observed in the cross section of the composite films. Differential thermal analysis (DTA) indicated that the addition of GO increased the stability of the chitosan film. The baicalin-loaded GO/Chitosan also exhibited pH dependent release behaviour, with an increasing release amount and rate at lower pH medium. In addition, the result of biological evaluations showed that the GO/Chitosan films had good cytocompatibility in vitro and histocompatibility at appropriate GO concentrations. This investigation offered a new pH-dependent drug carrier potentially applied for tumour and atherosclerosis treatment.","PeriodicalId":52235,"journal":{"name":"Biosurface and Biotribology","volume":"9 2","pages":"35-44"},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/bsb2.12059","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47217496","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0