Collaborative Research: In Vitro Epithelial Lubrication: Collective Motion, Mechanics, and Fluid Transport

合作研究:体外上皮润滑:集体运动、力学和流体传输

基本信息

  • 批准号:
    2104441
  • 负责人:
  • 金额:
    $ 21.66万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Standard Grant
  • 财政年份:
    2021
  • 资助国家:
    美国
  • 起止时间:
    2021-08-01 至 2024-07-31
  • 项目状态:
    已结题

项目摘要

The research supported by this grant will generate new knowledge about how human epithelial tissues function and endure damage. Epithelial tissues are the thin protective layers of cells that cover the inner and outer surfaces of organs. Throughout the body, one of the main functions of epithelial surfaces is lubrication. However, most of our understanding of epithelial lubrication comes from the study of fluids at epithelial surfaces, neglecting the mechanical behaviors of the cells themselves. This award supports fundamental research to establish the connection between epithelial lubrication and the mechanical behaviors of cells in monolayers. Pharmaceutical interventions are known to alter the mechanical properties of cells and tissues. These will be used to uncover the underlying mechanical contributions to epithelial lubrication. This new knowledge will increase understanding of diseases of the epithelium and identify new potential therapies. Therefore, results from this research will ultimately benefit human health and society. This research brings together several disciplines including tribology (the study of friction and wear), cell mechanics, active matter physics, and physiology. The convergence of multiple disciplines and the potential societal impacts of this work will aid in broadening participation of traditionally underrepresented groups in research and expand engineering education. The research aims to discover new principles of monolayer lubrication, guided by the central hypothesis that the mechanically relevant timescales associated with cell motion and intercellular fluid transport in monolayers generate multiple distinct regimes of lubrication. The rationale for this work is that new perspectives on epithelial tissue function and pathologies will emerge from rebuilding current understanding of epithelial lubrication on a foundation derived from collective cell motion and mechanics. The research team will classify and quantify collective motion in different types of monolayer, establish how cell motion and monolayer properties control indentation dynamics, and develop lubrication curves with connections to collective cell motion and monolayer material and transport properties. Living analogs to classic lubrication phenomena like fluid "squeeze films," poroelasticity, boundary lubrication, mixed lubrication, and hydrodynamic lubrication will be linked to collective cell motion, mechanics, and intercellular fluid transport.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.
这项资助支持的研究将产生关于人类上皮组织如何发挥作用和承受损伤的新知识。上皮组织是覆盖器官内外表面的薄细胞保护层。在整个身体中,上皮表面的主要功能之一是润滑。然而,我们对上皮润滑的理解大多来自于对上皮表面流体的研究,忽略了细胞本身的机械行为。该奖项支持基础研究,以建立上皮润滑和单层细胞机械行为之间的联系。已知药物干预会改变细胞和组织的机械性质。 这些将用于揭示上皮润滑的潜在机械贡献。这一新的知识将增加对上皮疾病的理解,并确定新的潜在疗法。因此,这项研究的结果最终将有利于人类健康和社会。这项研究汇集了几个学科,包括摩擦学(摩擦和磨损的研究),细胞力学,活性物质物理学和生理学。 多学科的融合和这项工作的潜在社会影响将有助于扩大传统上代表性不足的群体在研究中的参与,并扩大工程教育。 该研究旨在发现单层润滑的新原理,其中心假设是,与单层中细胞运动和细胞间流体运输相关的机械相关时间尺度产生多种不同的润滑机制。这项工作的基本原理是,上皮组织功能和病理学的新观点将出现从重建目前的理解上皮润滑的基础上,来自集体细胞运动和力学。研究小组将对不同类型的单层中的集体运动进行分类和量化,建立细胞运动和单层特性如何控制压痕动力学,并开发与集体细胞运动和单层材料和运输特性相关的润滑曲线。 经典润滑现象如流体“挤压膜”、孔隙弹性、边界润滑、混合润滑和流体动力润滑的活的类似物将与集体细胞运动、力学和细胞间流体运输联系起来。该奖项反映了NSF的法定使命,并通过使用基金会的智力价值和更广泛的影响审查标准进行评估而被认为值得支持。

项目成果

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Kyle Schulze其他文献

Low Temperature Solder Interconnection of Surface Mount Devices with Additively Printed Pads on Flexible Substrate
柔性基板上带有增印焊盘的表面贴装器件的低温焊接互连
Experimental and data-driven exploration of surface topography and tribological properties of additively manufactured polymers using fused filament fabrication (FFF)
  • DOI:
    10.1016/j.jmapro.2025.06.088
  • 发表时间:
    2025-09-30
  • 期刊:
  • 影响因子:
    6.800
  • 作者:
    Samsul Mahmood;Emily Guo;Abdullah Al Nahian;Shoumik Sadaf;Zhihua Jiang;Lauren Beckingham;Kyle Schulze
  • 通讯作者:
    Kyle Schulze
On extreme value theory-based estimation of surface quality for metal additive manufacturing
  • DOI:
    10.1007/s40964-025-00998-6
  • 发表时间:
    2025-02-20
  • 期刊:
  • 影响因子:
    5.400
  • 作者:
    Mohsen Nikfar;Shehzaib Irfan;Loren Baugh;Samsul Mahmood;Nabeel Ahmad;Jia Liu;Robert L. Jackson;Kyle Schulze;Shuai Shao;Daniel F. Silva;Alexander Vinel;Nima Shamsaei
  • 通讯作者:
    Nima Shamsaei

Kyle Schulze的其他文献

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