Biosurface and Biotribology最新文献_第3页

A study on the biocompatibility of ramie fibre for medical dressing application 苎麻纤维在医用敷料中的生物相容性研究

IF 1.6

Biosurface and Biotribology Pub Date : 2023-11-27 DOI: 10.1049/bsb2.12069

Changsheng Wei, Shibing Xiong, Siqi Zhang, Yifan Cui, Simeng Wang, Xugang Lu, Jun Chen, Mei Zhang, Bangcheng Yang

引用次数: 0

Polyvinylchloride surface modified with polymer brushes for reduced protein, cell and bacteria attachment 用聚合物刷修饰的聚氯乙烯表面可减少蛋白质、细胞和细菌的附着

IF 1.6

Biosurface and Biotribology Pub Date : 2023-11-20 DOI: 10.1049/bsb2.12071

Rashed Almousa, Dong Xie, Jiliang Li, Gregory G. Anderson

{"title":"Polyvinylchloride surface modified with polymer brushes for reduced protein, cell and bacteria attachment","authors":"Rashed Almousa, Dong Xie, Jiliang Li, Gregory G. Anderson","doi":"10.1049/bsb2.12071","DOIUrl":"10.1049/bsb2.12071","url":null,"abstract":"The objective of this study was to coat negatively charged polymer brushes by a covalent bond onto the surface of polyvinylchloride using a simple conventional surface free radical polymerisation technique. The coated surfaces were assessed with contact angle, protein adsorption, cell adhesion, and bacterial adhesion. Bovine serum albumin and bovine fibrinogen were used for protein adsorption evaluation. Mouse fibroblast (NIH-3T3) cells and Pseudomonas aeruginosa were used to assess surface adhesion. Results show that the surface modified with all the attached polymers exhibited significantly reduced contact angle, protein adsorption, and cell as well as bacterial adhesion among which the negatively charged polymers showed extremely low values in all the tests. The negatively charged polymer shows its contact angle at 5° as compared to 70° for original polyvinylchloride. Its bovine serum albumin, bovine fibrinogen, 3T3 adhesion, and P. aeruginosa adhesion were 93%, 84%, 92%, and 92% lower than the original PVC, respectively. Furthermore, the polyvinylchloride surface coated with negatively charged polymer brushes exhibited a hydrogel-like property. The results indicate that coating a polyvinylchloride surface with acrylic acids using a simple surface-initiated free radical polymerisation and then converting those to negatively charged salts can be an effective and efficient route for fouling-resistant applications.","PeriodicalId":52235,"journal":{"name":"Biosurface and Biotribology","volume":"9 4","pages":"187-198"},"PeriodicalIF":1.6,"publicationDate":"2023-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/bsb2.12071","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139256420","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

Synthesis of titanium carbide coating on Ti15Mo alloy and its tribological behaviour Ti15Mo 合金上碳化钛涂层的合成及其摩擦学特性

IF 1.6

Biosurface and Biotribology Pub Date : 2023-11-17 DOI: 10.1049/bsb2.12070

Hongxiang Wang, Jiajia Shen, Weipeng Zhang, Zhentao Xu, Jingjing Zheng, Yong Luo

{"title":"Synthesis of titanium carbide coating on Ti15Mo alloy and its tribological behaviour","authors":"Hongxiang Wang, Jiajia Shen, Weipeng Zhang, Zhentao Xu, Jingjing Zheng, Yong Luo","doi":"10.1049/bsb2.12070","DOIUrl":"10.1049/bsb2.12070","url":null,"abstract":"Ti15Mo alloy has been regarded as one of the most potential biomedical materials due to its excellent performance. However, the low hardness and poor wear resistance of titanium alloy limit the further application. Therefore, high temperature solid carburising technology was performed on the surface of Ti15Mo alloys to prepare titanium carbide (TiC) coating with graphene (G) as the carburising agent. The microstructure, mechanical properties, and tribological properties of TiC coating under different lubricants were investigated. Results showed that TiC coating was closely bonded to the titanium substrate. The maximum thickness of TiC coating treated with 1150°C was approximately 184.02 μm, and the microhardness of alloys treated with 1100°C can achieve 1221.5 HV. All modified Ti15Mo alloys showed improved tribological performance compared to the original samples. The wear mechanisms of modified Ti15Mo alloys were abrasive wear and adhesive wear under the SBF lubricant, and the TiC coating was slightly peeled off. The overall friction coefficient and wear rate under 25% calf serum lubricant were lower than the SBF lubricant, and surface scratches were almost absent, and slight abrasive wear and adhesive wear occurred on the surface.","PeriodicalId":52235,"journal":{"name":"Biosurface and Biotribology","volume":"9 4","pages":"176-186"},"PeriodicalIF":1.6,"publicationDate":"2023-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/bsb2.12070","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139264095","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

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