Ti3C2Tx and Mo2TiC2Tx MXenes as additives in synovial fluids - towards an enhanced biotribological performance of 3D-printed implants

被引:4
作者
Marian, Max [1 ,2 ]
Esteban, Cotty D. Quiroz [3 ]
Zambrano, Dario F. [3 ]
Ramteke, Sangharatna M. [2 ]
Grez, Jorge Ramos [2 ]
Wyatt, Brian C. [4 ,5 ]
Patenaude, Jacob [4 ]
Wright, Bethany G. [4 ]
Anasori, Babak [4 ,5 ]
Rosenkranz, Andreas [3 ,6 ]
机构
[1] Leibniz Univ Hannover, Inst Machine Design & Tribol IMKT, Hannover, Germany
[2] Pontificia Univ Catolica Chile, Sch Engn, Dept Mech & Met Engn, Santiago, Chile
[3] Univ Chile, Dept Chem Engn Biotechnol & Mat FCFM, Santiago, Chile
[4] Purdue Univ, Sch Mech Engn, W Lafayette, IN USA
[5] Purdue Univ, Sch Mat Engn, W Lafayette, IN USA
[6] Millennium Nuclei Adv MXenes Sustainable Applicat, ANID Millennium Sci Initiat Program, Santiago, Chile
关键词
2D materials; MXenes; Biotribology; Wear resistance; Additive manufacturing; TRIBOLOGICAL PROPERTIES; LUBRICANT; NANOCOMPOSITES; DISPERSIONS; COLLAGEN; BOVINE;
D O I
10.1016/j.apmt.2024.102464
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Synovial joints, critical for limb biomechanics, rely on sophisticated lubrication systems to minimize wear. Disruptions, whether from injury or disease, often necessitate joint replacements. While additive manufacturing offers personalized implants, ensuring wear resistance remains a challenge. This study delves into the potential of Ti3C2Tx 3 C 2 T x and Mo2TiC2Tx 2 TiC 2 T x nanosheets in mitigating wear of additively manufactured cobalt-chromium tungsten alloy substrates when incorporated as additives into synovial fluid. The colloidal solutions demonstrate an excellent stability, a crucial factor for reproducible assays and potential clinical applicability. Analysis of contact angles and surface tensions reveals MXene-induced alterations in substrate wettability, while maintaining their general hydrophilic character. Viscosity analysis indicates that MXene addition reduces the dynamic viscosity, particularly at higher concentrations above 5 mg/mL, thus enhancing dispersion and lubrication properties. Friction and wear tests demonstrate a dependency on the MXene concentration, while Ti3C2Tx 3 C 2 T x exhibits stable friction coefficients and up to 77 % wear reduction at 5 mg/mL, which was attributed to the formation of a wear- protecting tribo-film (amorphous carbon and MXene nano-sheets). Our findings suggest that Ti3C2Tx, 3 C 2 T x , when supplied in favorable concentrations, holds promise for reducing wear in biotribological applications, offering avenues for future research into optimizing MXene utilization in load-bearing joint replacements and other biomedical devices.
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页数:11
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