使用微流体晶体管对卵细胞进行自主冷保护
Li Zhan1,2, Hunter Hinnen1,3, Kaustav A Gopinathan1,2
1Center for Engineering in Medicine and Surgery, Massachusetts General Hospital, Boston, MA, USA.
Device
|August 22, 2025
概括
这项研究引入了一种低成本的微流体装置,自动化卵细胞冷保存以进行体外受精 (IVF). 该设备简化了冷保护剂的装载,旨在提高试管婴儿的可访问性和可负担性.
科学领域:
- 生物技术
- 生殖生物学
- 微流体学
背景情况:
- 卵子冷保存对于体外受精至关重要,但依赖于手工方法.
- 在试管婴儿中手动加热保护剂容易发生变化,成本高,可获得性有限.
研究的目的:
- 开发一种低成本,易于使用的微流体装置,用于自动加载卵细胞冷保护剂 (CPA).
- 创建一个用于辅助生殖技术的冷保存卵细胞的装置.
主要方法:
- 使用微流体晶体管设计流体计时器和逻辑门.
- 使用时间依赖的压力信号来控制微流体,以调节卵细胞暴露于溶液中.
- 经过自主捕获卵细胞,CPA加载,脱水和使用常压的提取.
主要成果:
- 成功自动化了复杂的多步骤的卵细胞CPA加载过程.
- 实现了自主捕捉小鼠卵细胞,平衡溶液加载,玻璃化溶液脱水和提取.
- 微流体装置提供了冷保存的卵细胞.
结论:
- 开发的微流体装置为自动化卵细胞冷提供了可行的解决方案.
- 这项技术代表了自主"IVF-on-a-chip"系统的重大进展.
- 这项创新旨在提高全球体外受精治疗的可及性和可负担性.
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