在流量条件下处理石墨烯相关材料的微生理系统
Alodia Lacueva-Aparicio1,2, Viviana Jehová González2, Ana Rosa Remacha1
1Tissue Microenvironment (TME) Lab, I3A _ IIS Aragón, University of Zaragoza, 50018 Zaragoza, Spain.
Nanoscale horizons
|April 12, 2024
概括
器官芯片技术为测试纳米材料安全提供了更好的方法. 这项研究优化了微流体系统,以在生理条件下评估氧化石墨烯和少层石墨烯暴露.
科学领域:
- 纳米技术和材料科学 材料科学
- 生物医学工程 生物医学工程
- 毒理学 毒理学 毒理学
背景情况:
- 纳米技术,特别是像石墨烯相关材料 (GRMs) 这样的二维材料,具有广泛的工业和生物医学应用.
- 评估GRM的安全性至关重要,但由于它们倾向于沉积,吸附于塑料,并且在水溶液中缺乏稳定性,因此具有挑战性.
- 传统的静态测试无法复制人类的生理条件,阻碍了准确的纳米材料安全评估.
研究的目的:
- 开发和优化微流体系统,最大限度地减少氧化石墨烯 (GO) 和少层石墨烯 (FLG) 的吸附和沉积.
- 在动态,生理上相关的流量条件下创建脏在芯片上的模型来评估GO和FLG暴露的影响.
主要方法:
- 微流体系统的优化,以控制在流动下纳米粒子的行为.
- 开发一个脏在芯片上的设备.
- 在流体流动下,在芯片上的暴露于GO和FLG碎片的次致命剂量.
主要成果:
- 优化的微流体系统成功地减少了GO和FLG的吸附和沉积.
- 芯片上的脏模型有效地模拟了人类生理微环境的纳米材料暴露.
- 在流量条件下评估了GO和FLG的次致命暴露效应.
结论:
- 微生理系统 (MPS),如器官芯片技术,是评估纳米材料安全性的创新和精确工具.
- 基于流的微流体系统克服了用于评估GRM和其他纳米材料的静态测试的局限性.
- 这种方法可以在生物医学应用中对纳米材料进行更准确和更相关的安全评估.
相关概念视频
01:16Conservation of Mass in Finite Cotrol Volume
The principle of conservation of mass is a fundamental law in fluid mechanics and is applied using the continuity equation. We apply the concept to a finite control volume to derive the continuity equation.
A system is defined as a collection of unchanging contents, and the conservation of mass states that a system's mass is constant.
A system is defined as a collection of unchanging contents, and the conservation of mass states that a system's mass is constant.
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Temperature is a key factor in CO2 solubility. In this case, the CO2 gas and the liquid are cooled to 20°C. Lower temperatures enhance...
Temperature is a key factor in CO2 solubility. In this case, the CO2 gas and the liquid are cooled to 20°C. Lower temperatures enhance...
01:28Pipe Flowrate Measurement: Problem Solving
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