Biosurface and Biotribology最新文献_第3页

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

Controllable deformation based self-adaptive drag reduction for complex surface 基于可控变形的复杂表面自适应减阻

Biosurface and Biotribology Pub Date : 2023-02-28 DOI: 10.1049/bsb2.12057

Dengke Chen, Xianxian Cui, Huawei Chen

{"title":"Controllable deformation based self-adaptive drag reduction for complex surface","authors":"Dengke Chen, Xianxian Cui, Huawei Chen","doi":"10.1049/bsb2.12057","DOIUrl":"10.1049/bsb2.12057","url":null,"abstract":"Reduction of energy consumption and improvement of cruising speed are greatly necessary for underwater vehicles. Previously, regular riblets have been machined and the drag reduction has been verified; however, the riblet parameters are not adjusted like the denticles of sharkskin, which adapt quickly to the complex changing fluid flow. To achieve an improved drag reduction effect on the complicated shape surface, a simple, low-cost, and timesaving stretching approach was proposed to adjust the riblet parameters on the underwater vehicle surface by controllable deformation. Nature latex rubber membrane with regular micro-riblets was prepared as a stretching flexible film, and the spacing and height of the micro-riblets were adjusted by adaptive control of the stretching ratio. The circulating water channel experiment verified the effectiveness and feasibility of the self-adaptive drag reduction by the controllable deformation method. The results demonstrated that the drag reduction rate of the controllable deformation bionic fish skin was 4.26% compared with a smooth surface at 0.25 m/s with an angle of attack of 0°, which is better than any other angle. The controllable deformation bionic fish skin provides a feasible method for the drag reduction of complex surface adaptive underwater vehicles.","PeriodicalId":52235,"journal":{"name":"Biosurface and Biotribology","volume":"9 1","pages":"17-23"},"PeriodicalIF":0.0,"publicationDate":"2023-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/bsb2.12057","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41676021","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

Experimental study on bumps formation textured by nanosecond laser on Ti6Al4V alloy 纳秒激光在Ti6Al4V合金上形成织构凸点的实验研究

Biosurface and Biotribology Pub Date : 2023-02-27 DOI: 10.1049/bsb2.12058

Zhifang Liu, Tong Niu, Yaxi Lei, Yuanxin Luo

{"title":"Experimental study on bumps formation textured by nanosecond laser on Ti6Al4V alloy","authors":"Zhifang Liu, Tong Niu, Yaxi Lei, Yuanxin Luo","doi":"10.1049/bsb2.12058","DOIUrl":"10.1049/bsb2.12058","url":null,"abstract":"The surface properties of biomaterials are the key factors for the success of artificial implants in the body. The creation of patterns on titanium alloys by laser surface texturing techniques can modify the surface to make it multifunctional. The evolution of the surface morphology of Ti6Al4V alloy textured by a nanosecond laser with 1064 nm wavelength in the air is studied. Laser surface texturing treatment is performed on the titanium alloy through different pulse numbers, power, pulse width and scan times to obtain different morphologies. The 2D cross-section profile shows that the morphology can be divided into three types in the evolution process of various pulse numbers, powers and pulse widths: bump-shaped, hump-shaped and crater-shaped. It is found that the effect of pulse width on morphology mainly depends on power. The effects of laser parameters on the height of bumps and the evolution of morphology are the main research points to analyse the topography evolution. The causes of bumps are also analysed. Energy dispersive spectrometer measures the area irradiated by the laser, and it is found that the oxygen content of the bump is up to 43.1%, which can speculate that the bump is the result of the oxidation reaction.","PeriodicalId":52235,"journal":{"name":"Biosurface and Biotribology","volume":"9 1","pages":"24-34"},"PeriodicalIF":0.0,"publicationDate":"2023-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/bsb2.12058","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47002019","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

An atmospheric water harvester with fast and energy-saving water removal and recovery 一种具有快速、节能脱水和回收功能的大气水收集器

Biosurface and Biotribology Pub Date : 2023-02-15 DOI: 10.1049/bsb2.12056

Jiayu Song, Zhang Liu, Jhoanne Pedres Boñgol, Zhaoxin Zhang, King Lun Yeung

{"title":"An atmospheric water harvester with fast and energy-saving water removal and recovery","authors":"Jiayu Song, Zhang Liu, Jhoanne Pedres Boñgol, Zhaoxin Zhang, King Lun Yeung","doi":"10.1049/bsb2.12056","DOIUrl":"10.1049/bsb2.12056","url":null,"abstract":"Moisture removal and water recovery from the air are vital for regulating indoor humidity and mitigating water scarcity. Most atmospheric water harvesters (AWH) focus primarily on increasing the moisture capture rate, but for it to be economical and sustainable, it is essential to consider the energy required to recover and harvest the captured water. Here, a mechanically flexible, biphilic sorption-based AWH made of green, environmentally friendly material is presented. It consists of a hygroscopic chitosan polymer embedded within a flexible, hydrophobic silica xerogel that can harvest 86.3 g water/g chitosan at 97% relative humidity and 25°C reaching saturation after 30 days (i.e. 2.88 g water/g chitosan/day). Roughly 88% of the sorbed moisture was recovered by mechanical squeezing (ca. 0.020 MPa) within 150 s. Repeated water harvesting experiments and uniaxial compression tests demonstrate that chitosan-silica xerogel is durable for long-term operations, providing a fast, reliable, and sustainable moisture removal and water harvesting tool.","PeriodicalId":52235,"journal":{"name":"Biosurface and Biotribology","volume":"9 1","pages":"9-16"},"PeriodicalIF":0.0,"publicationDate":"2023-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/bsb2.12056","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45319683","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

Tribological and mechanical behaviours of resin-based friction materials based on microcrack filling 基于微裂纹填充的树脂基摩擦材料的摩擦学和力学性能

Biosurface and Biotribology Pub Date : 2022-11-29 DOI: 10.1049/bsb2.12055

Lekai Li, Guixiong Gao, Jin Tong, Jian Zhuang, Wei Song, Yunhai Ma, Guoqin Liu, Feipeng Cao, Shengwang Yuan, Qifeng Zhang

{"title":"Tribological and mechanical behaviours of resin-based friction materials based on microcrack filling","authors":"Lekai Li, Guixiong Gao, Jin Tong, Jian Zhuang, Wei Song, Yunhai Ma, Guoqin Liu, Feipeng Cao, Shengwang Yuan, Qifeng Zhang","doi":"10.1049/bsb2.12055","DOIUrl":"10.1049/bsb2.12055","url":null,"abstract":"To enhance the friction performance of resin-based friction materials, five types of specimens with different polymer ether ketone (PEEK) contents were fabricated and their physiomechanical behaviours were tested and, their tribological properties were investigated using a JF150F-II constant-speed tester. It was found that the addition of PEEK had a positive influence on the properties of the friction materials, and sample FM-3 (the shorthand of ‘Friction Materials-3’, containing 2 wt% PEEK) exhibited improved friction performance with a fade ratio and recovery ratio of 8.6% and 101.1% respectively. Among all samples, FM-4 (the shorthand of ‘Friction Materials-4’, containing 3 wt% PEEK) had the lowest specific wear rate with a value of 0.622 × 10−7 cm3 (N·m)−1 at 350°C. The PEEK can fill the microcracks in the composite at a high temperature and can also cover the hard abrasive particles to prevent them from directly damaging the composite. The findings from this study afford a foundation for studies to further improve the properties of resin-based friction materials.","PeriodicalId":52235,"journal":{"name":"Biosurface and Biotribology","volume":"9 1","pages":"1-8"},"PeriodicalIF":0.0,"publicationDate":"2022-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/bsb2.12055","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44159690","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: 2

The correlation between biotribological function and structural characteristics of bamboo rat teeth 竹大鼠牙齿生物摩擦学功能与结构特征的关系

Biosurface and Biotribology Pub Date : 2022-11-15 DOI: 10.1049/bsb2.12054

Zhenwu Ning, Zhongrong Zhou, Jing Zheng

引用次数: 0