基于压力驱动的流动数码打印的微流体的流体粘度测量
Yan Ge1,2, Xingxing Huang1,2, Baojian Zhang3
1Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, P. R. China. liangpeng1@ciomp.ac.cn.
The Analyst
|February 27, 2025
概括
这项研究引入了一种新的3D打印微流体粘度计,用于精确测量流体粘度. 该设备使用最小的样本量,并为各种流体类型提供快速,准确的结果,包括非牛顿流体.
科学领域:
- 流体动力学 流体动力学
- 微流体学 微流体学
- 材料科学是一种材料科学.
背景情况:
- 粘度是流体的一个关键性质,对于生物制药应用至关重要.
- 传统的微流体粘度计在芯片设计和制造方面存在局限性.
- 精确的粘度测量需要对微观流体行为进行精确的控制.
研究的目的:
- 设计和制造一种具有可变横截面的新型微流体芯片,用于增强粘度测量.
- 开发一个数字打印 (DP) 微流体粘度计,利用压力驱动的流量和光学成像.
- 为了能够准确地确定流体的粘度,包括非牛顿类型,以最小的样本体积和高效率.
主要方法:
- 使用光固化3D打印技术制造了可变横截面微流体芯片.
- 压力驱动的流量系统与光学成像相结合,用于创建微流体粘度计.
- 粘度是通过监测压力和流速变化随着时间的推移,以应对不同的剪切速率来测量.
主要成果:
- 通过3D打印的微流体芯片成功制造,展示了可变横截面设计.
- 数字打印的微流体粘度计准确地测量了粘度,样品消耗最小 (25微升),实验时间快 (<2分钟).
- 该装置显示了与商业粘度计相比较的高精度,并证明能够分析非牛顿流体.
结论:
- 开发的微流体粘度计为流体粘度测量提供了一个具有成本效益和操作简单的平台.
- 可变横截面芯片设计克服了传统直通道结构的局限性.
- 这种方法为微流体系统中先进的流体属性分析提供了基础.
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