通过受控浸泡,快速冷却样品的自动化装置
Purva Joshi1, Zachary Chau1, Shaun Keating2
1Center for Engineering in Medicine & Surgery, Department of Surgery, Massachusetts General Hospital, Harvard Medical School, and Shriners Children's Boston, USA.
Cryobiology
|May 11, 2025
概括
一个新的低成本的自动设备精确地将标本浸入液中,以便快速冷却,这对于玻璃化至关重要. 这种便携式系统确保了与手工方法相比的一致冷却速率,提高了冷保存的可靠性.
科学领域:
- 低温生物学 低温生物学
- 生物技术是生物技术.
- 机器人技术 机器人技术 机器人技术
背景情况:
- 玻璃化需要精确,快速冷却生物标本.
- 目前实现最佳冷却速度的方法可能不一致或耗费大量劳动力.
- 需要自动化解决方案来提高冷保存的可靠性和可重复性.
研究的目的:
- 开发和验证一种低成本的便携式自动装置,用于在液中沉浸可编程样本.
- 为了能够精确控制玻璃化应用的冷却速度.
- 评估设备的精度,可靠性和实际功能.
主要方法:
- 使用步进电机,线性执行器和3D打印机器人手臂的设备被设计为可编程的垂直样本沉浸.
- 通过测量起始高度和潜水距离的误差,验证了设备定位的精度.
- 将自动浸泡和手动浸泡之间的冷却速度进行了比较,并使用标准授精吸管进行评估.
主要成果:
- 自动设备显示出高精度,定位相对误差不到1.5%.
- 自动浸泡实现了与手工方法统计学上无法区分的冷却速度.
- 使用0.25毫升授精吸管进行实践应用测试证实了功能性,并实现了与文献和计算预测一致的冷却速度.
结论:
- 开发的自动化设备提供了一个精确,可靠和具有成本效益的解决方案,用于在玻璃化过程中快速冷却样品.
- 它的便携性和与各种冷容器的兼容性提高了它在冷生物学研究和应用中的实用性.
- 该设备的性能验证了其提高冷保存的一致性和成功率的潜力.
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