Biosurface and Biotribology最新文献

One-Step Co-Deposition of Phase-Transited Protein and Zwitterionic Polymers for Robust Antifouling and Lubricious Coatings 相变蛋白和两性离子聚合物一步共沉积用于防污和润滑涂层

IF 1.7

Biosurface and Biotribology Pub Date : 2026-08-18 DOI: 10.1049/bsb2.70029

Zaiyan Zhang, Yuhang Liu, Pengfei Li, Yuhao Zhang, Jiawen Zhang, Ziqian Zhao, Li Xiang

{"title":"One-Step Co-Deposition of Phase-Transited Protein and Zwitterionic Polymers for Robust Antifouling and Lubricious Coatings","authors":"Zaiyan Zhang, Yuhang Liu, Pengfei Li, Yuhao Zhang, Jiawen Zhang, Ziqian Zhao, Li Xiang","doi":"10.1049/bsb2.70029","DOIUrl":"https://doi.org/10.1049/bsb2.70029","url":null,"abstract":"Developing protective coatings with desirable antifouling and lubricating capabilities is crucial for the long-term performance of implantable and interventional medical devices. However, stably immobilising functional materials onto diverse substrates without complex pretreatment remains a major challenge. Herein, we report a ‘one-step co-deposition’ strategy to prepare multifunctional coatings by synergising the amyloid-like phase transition of bovine serum albumin (BSA) with zwitterionic polymers. Phase-transited BSA (PTB), generated via rapid amyloid-like aggregation induced by the reduction of intramolecular disulfide bonds using tris(2-carboxyethyl)phosphine (TCEP), acts as a robust interfacial anchor. This anchor embeds zwitterionic polymers—including poly(sulfobetaine methacrylate) (PSBMA), poly(carboxybetaine methacrylate) (PCBMA) and poly(2-methacryloyloxyethyl phosphorylcholine) (PMPC)—into a dense protein network, realising the rapid functionalisation of various material surfaces (e.g., metals, inorganic ceramics and hydrophobic polymers), forming ultrathin and superhydrophilic coatings. The resulting coatings exhibit outstanding resistance to nonspecific biofouling, inhibiting the adsorption from complex biological fluids, proteins and lipids by over 90%. Also, the strongly hydrated zwitterionic polymers enable an efficient lubrication ability, reducing the friction coefficient to an ultralow range of 0.005–0.015 under physiological conditions. This work presents a facile strategy that simultaneously integrates exceptional antifouling and ultra-lubricating properties, offering great potential for tailoring multifunctional surfaces on biomedical devices for bioengineering applications.","PeriodicalId":52235,"journal":{"name":"Biosurface and Biotribology","volume":"12 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2026-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/bsb2.70029","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148784012","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

Influence of Natural Pathological Alterations on the Mechanical Properties and Microstructure of Human Enamel and Dentine 自然病理改变对人牙釉质和牙本质力学性能和微观结构的影响

IF 1.7

Biosurface and Biotribology Pub Date : 2026-07-06 DOI: 10.1049/bsb2.70027

E. V. Sadyrin, P. E. Antipov, A. P. Evsyukov, A. M. Kolesnikov, A. L. Nikolaev

{"title":"Influence of Natural Pathological Alterations on the Mechanical Properties and Microstructure of Human Enamel and Dentine","authors":"E. V. Sadyrin, P. E. Antipov, A. P. Evsyukov, A. M. Kolesnikov, A. L. Nikolaev","doi":"10.1049/bsb2.70027","DOIUrl":"10.1049/bsb2.70027","url":null,"abstract":"Dental caries represents a significant global health challenge. Accurate quantification of the mechanical properties of dental tissues is essential for understanding disease progression and guiding medical procedures. However, comprehensive comparative analyses across multiple stages of natural caries progression using a unified methodological framework remain limited. This study employs a multimodal approach, integrating several experimental techniques to evaluate the preliminary trends in microstructure and mechanical behaviour of human enamel and dentine affected by white spot lesion in the vicinity of the fissure apex, non-cavitated, and cavitated brown spot lesions. The preliminary results suggest that certain pathological alterations, specifically within the examined brown spot lesions-affected tissues, may display enhanced mechanical properties, which could be attributed to subsurface remineralisation and mineral deposition in sclerotic dentine. In contrast, advanced lesions, particularly those with structural breakdown, appear to exhibit significant reductions in mechanical properties, reflecting extensive demineralisation within the studied specimens. Furthermore, the fissure region was found to be particularly susceptible to mechanical degradation, with localised pathologically altered area seemingly influenced by morphological factors. These initial findings highlight the critical role of microstructural features in modulating the biomechanical response of dental tissues to pathological challenges and provide a basis for broader statistical validation.","PeriodicalId":52235,"journal":{"name":"Biosurface and Biotribology","volume":"12 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2026-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/bsb2.70027","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148466612","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

A Novel Approach for Visualising the Liquid Droplet Transfer Mechanism From a Surface to a Finger Pad Using Optical Coherence Tomography 一种利用光学相干层析成像可视化液滴从表面到指垫传递机制的新方法

IF 1.7

Biosurface and Biotribology Pub Date : 2026-06-22 DOI: 10.1049/bsb2.70026

Zing Sian Lee, Kazim Yildirimli, Matt Carre, Joseph Lanigan, Roger Lewis

{"title":"A Novel Approach for Visualising the Liquid Droplet Transfer Mechanism From a Surface to a Finger Pad Using Optical Coherence Tomography","authors":"Zing Sian Lee, Kazim Yildirimli, Matt Carre, Joseph Lanigan, Roger Lewis","doi":"10.1049/bsb2.70026","DOIUrl":"https://doi.org/10.1049/bsb2.70026","url":null,"abstract":"Viruses and microbes can be transferred from one surface to another via liquid droplets that result from, for example, sneezing. The exact mechanism of transfer from a surface to a finger-pad, however, has not been well studied. This novel work investigated how droplets are picked-up and how much liquid remains on each surface after contact is broken during a ‘touching event’ using optical coherence tomography (OCT) images. These showed that the droplet was pulled towards the finger-pad as it approached and formed an ‘hour-glass’ shape as the finger-pad moved away from the surface before splitting between surfaces as contact was broken. Despite the spread of liquid during the contact, after the touch, droplets reformed. Three-dimensional images of the droplets before and after the touch were used to determine the change in volume. For the droplets tested (0.40–1.85 mm3), the results consistently showed a transfer of 77%–94% of the volume to the finger pad, suggesting that within this volume range, the transfer mechanism remains stable for this specific liquid-surfaces interaction. This study demonstrates the potential of OCT for studying liquid droplet transfer. This is important in designing surfaces for reduced liquid transfer and for improving models of droplet behaviour.","PeriodicalId":52235,"journal":{"name":"Biosurface and Biotribology","volume":"12 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2026-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/bsb2.70026","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148324103","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 of the Long-Term Degradation Behaviour of Binary Mesoporous Bioactive Glass Nanoparticles 二元介孔生物活性玻璃纳米颗粒的长期降解行为研究

IF 1.7

Biosurface and Biotribology Pub Date : 2026-06-16 DOI: 10.1049/bsb2.70025

Jing Tian, Meng Luo, Mi Chen, Yanzi Zhao, Bo Lei

{"title":"Investigation of the Long-Term Degradation Behaviour of Binary Mesoporous Bioactive Glass Nanoparticles","authors":"Jing Tian, Meng Luo, Mi Chen, Yanzi Zhao, Bo Lei","doi":"10.1049/bsb2.70025","DOIUrl":"https://doi.org/10.1049/bsb2.70025","url":null,"abstract":"Bioactive glass nanoparticles (BGNs) have attracted widespread attention in regenerative medicine owing to their excellent biocompatibility and tissue repair capacity. However, the ion release behaviour associated with the long-term degradation of BGNs doped with different functional elements remains unclear. Herein, binary silicate BGNs (BGN-Ca, BGN-Mg, BGN-Zn, BGN-Cu and BGN-Mn) were prepared, and their degradation behaviour in normal saline was systematically evaluated over a period of up to 150 days. The evolution of particle morphology and size, ion release and pH changes in solution was characterised in detail. The results showed that the degradation behaviours of BGNs doped with different elements differed markedly. BGN-Ca and BGN-Mg exhibited the fastest degradation rates characterised by rapid degradation accompanied by higher Si release, whereas BGN-Zn and BGN-Mn showed comparable total Si release but displayed ‘fast-then-slow’ and ‘slow-then-fast’ release patterns, respectively. Overall, the reactivity of metal ions can provide a preliminary prediction of early ion-exchange trends, but the actual degradation behaviour is also co-regulated by multiple factors, including doping content, crystalline structure and solubility. This study elucidates the intrinsic relationship among doped elements, structural state and degradation behaviour and provides an experimental support for the precise design and stability regulation of multicomponent functionalised BGNs.","PeriodicalId":52235,"journal":{"name":"Biosurface and Biotribology","volume":"12 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2026-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/bsb2.70025","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148282358","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

IF 1.8

Biosurface and Biotribology Pub Date : 2026-05-13