相关实验视频

Updated: May 12, 2025

High Throughput Single-cell and Multiple-cell Micro-encapsulation

High Throughput Single-cell and Multiple-cell Micro-encapsulation

Published on: June 15, 2012

在水平注射器内进行粒子沉积的建模,模拟和实验性表征

Maryamsadat Ghoreishi^1,2, Efsun Senturk¹, Gianluca Cidonio^1,2

¹Center for Life Nano- and Neuro- Sciences, Italian Institute of Technology, Rome, Italy.

Microfluidics and nanofluidics

|April 18, 2025

概括

在注射器中的颗粒沉积对实验室芯片 (LOC) 设备来说是一个挑战. 我们开发了一个模型来预测沉积,并尽量减少其在实验设计中的影响.

科学领域:

微流体和芯片上的实验室 (LOC) 技术
生物医学工程生物医学工程
粒子动力学粒子动力学

背景情况:

在液体介质中的颗粒沉积对实验室芯片 (LOC) 应用中的长时间样本处理提出了挑战,例如3D生物打印和微流体细胞计.
现有的缓解策略,如机械动或缓冲器修改,增加了系统的复杂性和成本.
了解和预测粒子沉积对于可靠的LOC实验设计至关重要.

研究的目的:

开发用于LOC设备的水平注射器内颗粒沉积的预测模型.
确定影响沉速度的关键参数,包括注射器尺寸,粒子特性和流量条件.
为设计最小化颗粒沉积的LOC系统提供实际指导方针.

主要方法:

开发一个数学模型来描述水平注射器中的颗粒沉积.
数字模拟用于分析模型行为和参数影响.
使用物理设置和生物粒子对模型的实验验证.
用于评估沉影响的度半衰期指标的推导.

主要成果:

该模型准确地预测了粒子沉积,突出了注射器半径,粒子终端速度,输出位置和流量率的关键作用.
建立了一个度半衰期参数,以量化随时间的沉积效应.
实验验证证证实了该模型对一般粒子和生物样本的适用性.
该研究产生了设计准则,以有效地减少LOC实验中的颗粒沉积.

结论:

开发的沉积模型为优化LOC实验设计提供了一个有价值的工具.
通过考虑关键参数,研究人员可以减轻沉积问题,提高试验可靠性.
这些发现为开发更强大,更有效的微流体系统提供了基础.

关键词:

在3D生物打印中使用3D生物打印生物工程是生物工程.度半衰期度半衰期一个芯片上的实验室沉积沉积沉积沉积沉积一个注射器注射器.

更多相关视频

Image-based Lagrangian Particle Tracking in Bed-load Experiments

Image-based Lagrangian Particle Tracking in Bed-load Experiments

Published on: July 20, 2017

Visualizing Hyporheic Flow Through Bedforms Using Dye Experiments and Simulation

Visualizing Hyporheic Flow Through Bedforms Using Dye Experiments and Simulation

Published on: November 18, 2015

相关概念视频

Centrifugation

Centrifugation

Centrifugation is a separation technique based on differences in density or size. It is commonly used to separate solids from aqueous interferents. During centrifugation, the sample is placed in centrifugation tubes and spun at high angular velocity, which allows centrifugal force to act differentially on the different densities or masses of the components. After spinning, the supernatant liquid is decanted. Depending on the specific application, either the pellet or the supernatant is retained...

Typical Model Studies

Typical Model Studies

Fluid mechanics model studies often utilize scaled-down systems to predict fluid behavior in full-scale environments, such as river flows, dam spillways, and structures interacting with open surfaces. Maintaining Froude number similarity in river models is crucial, as it replicates surface flow features like wave patterns and velocities.