基于负磁泳的无功率血分离,用于快速生物化学分析
Lin Zeng1, Chao Liu1,2, Yi Yang1,2
1Research Center for Bionic Sensing and Intelligence, Institute of Biomedical and Health Engineering, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, 518055, Shenzhen, China.
Microsystems & nanoengineering
|December 31, 2024
概括
这项研究介绍了一种多功能,无功耗的磁分离平台,用于从全血中快速提取血. 该设备实现了高效率和吞吐量,使得可靠的下游分析在不同的设置.
科学领域:
- 生物医学工程 生物医学工程
- 分析化学 分析化学
- 血液学 血液学 血液学
背景情况:
- 传统的血分离方法,如离心法,往往是复杂的,需要电力,并且可能耗时.
- 寻求无标签分离技术来简化工作流程并保持样品完整性.
- 在各种研究和临床环境中,对高效和可适应的血液处理工具的需求至关重要.
研究的目的:
- 开发和验证一个多功能,无功率的磁分离平台,用于从全血中提取无标签的血.
- 评估平台的效率,吞吐量和与下游分析技术的兼容性.
- 为了证明设备在不同样本类型和体积中的适用性.
主要方法:
- 使用了一种新的长短交替双哈尔巴赫磁阵列用于磁分离.
- 集成磁阵列与可适应的分离通道进行静态全血分离.
- 用不同量的老鼠和人类全血 (100微升至3毫升) 测试了平台.
- 评估了血回收率,细胞分离效率和随后抗体分析中的性能.
主要成果:
- 实现了99.9%的细胞分离效率 (细胞>1μm) 和72.7%的血恢复率.
- 经过证明的快速血提取:在8分钟内从100毫升老鼠血液中提取40毫升;在1分钟内从人血中提取3毫升.
- 分离的血产生了与离心法可比的结果,用于抗体度,大小分析和COVID-19 IgG检测.
- 该平台在处理从100μL到3μL的容量方面表现出高度的灵活性,而不会影响效率.
结论:
- 开发的磁分离平台为快速取等离子体提供了多功能,无功耗和高效的解决方案.
- 该设备适用于各种设置和样本量,保持下游分析的高分离效率和等离子质量.
- 这项技术具有显著的潜力,可以在研究,诊断和护理场所应用中简化血液处理.
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