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相关实验视频

Updated: Jul 6, 2025

Thermal Measurement Techniques in Analytical Microfluidic Devices
08:29

Thermal Measurement Techniques in Analytical Microfluidic Devices

Published on: June 3, 2015

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一种便携式的微流体装置,用于热控制的颗粒样本操纵.

Kailiang Zhang1, Wei Xiang1, Na Jia1

  • 1College of Mechanical and Electrical Engineering, Northeast Forestry University, Hexing Road 26, Harbin, Heilongjiang, PR China 150040. xiezhijie111@sina.com.

Lab on a chip
|January 3, 2024
PubMed
概括

本研究介绍了一种便携式微流体装置,使用热场进行精确的粒子操纵,包括聚焦,迁移和滴滴释放. 该设备可以方便地检测和释放各种应用的样品.

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科学领域:

  • 微流体学 微流体学
  • 热力工程是热力工程中的一个.
  • 生物技术是生物技术.

背景情况:

  • 对颗粒样本的有效操纵对于诸如护理点测试和货物交付等应用至关重要.
  • 现有的方法往往缺乏可移植性和实时可视化,限制了它们在各种环境中的使用.

研究的目的:

  • 开发和演示一种便携式微流体装置,用于使用热场进行受控的粒子操纵.
  • 为了展示设备在颗粒聚焦,单颗粒迁移和双乳液滴滴释放方面的功能.
  • 为了使方便和可视化的样本检测和操纵在各种设置.

主要方法:

  • 一个便携式微流体设备,集成微流体芯片,微控制器,内置显微镜和智能手机.
  • 利用五个微型加热器来产生热浮力流和用于粒子操纵的热毛囊效应.
  • 通过控制微加热器电压,证明了颗粒聚焦,单颗粒迁移和双乳液滴滴释放.

主要成果:

  • 通过电压控制实现了多个粒子 (颗粒,酵母细胞) 的受控聚焦,效率可通过电压控制调节.
  • 通过预先确定的轨迹和速度证明精确的单粒子迁移.
  • 成功操纵双乳液滴滴释放,具有可调节的核心释放速度.

结论:

  • 便携式微流体装置有效地展示了通过热场进行颗粒式操纵.
  • 该设备提供了用于粒子聚焦,迁移和滴滴释放的多功能.
  • 这项技术对分析检测,微机器人执行和货物释放等应用具有前景.

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