Water-in-Water Emulsions,Ultralow Interfacial Tension,and Biolubrication
作者机构：Key Laboratory of Colloid and Interface Chemistry(Ministry of Education)&State Key Laboratory of Crystal MaterialsShandong UniversityJinanShandong 250100 Department of OrthopedicsQilu HospitalCheeloo College of MedicineShandong UniversityJinanShandong 250012 Faculty of Engineering and Information SciencesUniversity of WollongongWollongongNSW 2522 State Key Laboratory of Solid LubricationLanzhou Institute of Chemical PhysicsChinese Academy of SciencesLanzhou 730000 Physikalische Chemie IBayreuth UniversitatBayreuth D-95447
出 版 物：《CCS Chemistry》 (中国化学会会刊（英文）)
年 卷 期：2022年第4卷第6期
页 面：2102-2114页
学科分类：081704[工学-应用化学] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学]
基 金：the National Natural Science Foundation of China(grant nos.22032003,22072073,and 22002072) the Natural Science Foundation of Shandong Province(nos.ZR2018 ZA0547 and ZR2020QB061) Australian Research Council(ARC)DP 190103455 the fellowship of China Postdoctoral Science Foundation(no.2020M672043)
主 题：water-in-water emulsion ultralowinterfacial tension phase interface biolubrication
摘 要：A water-in-water(W/W)emulsion consists of droplets formed by the spontaneous liquid-liquid separation of two immiscible aqueous *** inherent properties of the W/W interfaces,low or ultralowinterfacial tension(γ_(W/W)=1-1000μN/m)and a large thickness of several nanometers,beget the poor inherent stability of ***,we report a nanofibril emulsifier having Schiff base reactivity to generate a W/W *** W/W emulsion has superior stability(stable6 months)because collagen nanofibrils,acting as a stabilizer of W/W emulsions,can simultaneously satisfy the requirements of sizeandoverall coverage ratio of the phase interfaces.W/Wemulsions having γ_(W/W)∼10μN/m were used as synthetic synovial fluids,showing superior lubrication performance with a coefficient of friction in the range of 0.003-0.011,which has been demonstrated to be suitable for joint *** intraarticular injection assessment further confirmed this protective effect on articular cartilage in *** study reveals the mechanism of emulsion stabilization and opens up the possibility of osteoarthritis(OA)treatment using the biolubrication effects of W/W emulsions for lubricated artificial implant surfaces.
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