Boundary Lubricants with Exceptionally Low Friction Coefficients Based on 2D Close-Packed Phosphatidylcholine Liposomes
Boundary Lubricants with Exceptionally Low Friction Coefficients Based on 2D Close-Packed Phosphatidylcholine Liposomes
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DOI：
10.1002/adma.201101053
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发表时间：
2011-08-16
影响因子：
29.4
通讯作者：
Klein, Jacob
中科院分区：
文献类型：
--
作者：
Goldberg, Ronit;Schroeder, Avi;Klein, Jacob
氢化大豆磷脂酰胆碱（PC）脂质的脂质体在固体表面自发地自组装成紧密堆积的层，以形成边界润滑剂，其在高达约100 ° C的压力下将它们之间的滑动摩擦系数p降低至约10（-4）- 2 × 10（-5）μ。12兆帕。这个惊人的低值是由于水化润滑的PC头基暴露在表面的凝胶相囊泡。
Liposomes of hydrogenated soy phosphatidylcholine (PC) lipids spontaneously self-assemble in close-packed layers on solid surfaces to form boundary lubricants that reduce the coefficient p of sliding friction between them down to mu approximate to 10(-4) - 2 x 10(-5), at pressures up to ca. 12 MPa. This strikingly low value is attributed to hydration-lubrication by the PC headgroups exposed at the surfaces of the gel-phase vesicles.