Microfluid setup for high throughput laser-assisted cell transfection

Microfluid setup for high throughput laser-assisted cell transfection
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用于高通量激光辅助细胞转染的微流体装置

DOI:
10.1117/12.2577554
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发表时间:
2021
期刊:
影响因子:
--
通讯作者:
K. König
K. König
中科院分区:
--
文献类型:
--
作者:
H. G. Breunig;K. König

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通过与飞秒激光脉冲的相互作用,可以使细胞膜瞬时渗透大分子,从而实现细胞转染和细胞重编程。虽然贴壁细胞可以随后以高精度有效地靶向,但我们先前已经表明,通过激光聚焦区域实现细胞的连续流动极大地增加了可寻址细胞的数量,尽管以精确的单个细胞靶向为代价。在这里,我们描述了我们改进的新设置,该设置采用微流体流量控制和使用高速摄像机对流量进行在线监测,以及优化流量和激光参数的步骤。的设置,它结合了飞秒激光激发,控制微流体细胞流,和高速成像的能力,进行了说明。
By the interaction with femtosecond-laser pulses, a cell membrane can be made transiently permeable for macro molecules which enables cell transfection and cell reprogramming. While adherent cells can be effectively targeted subsequently with high precision, we have previously shown that the realization of a continuous flow of cells through a laser focus region increases the number of addressable cells tremendously, although, at the cost of precise individual cell targeting. We describe, here, our improved new setup, which employs microfluidic-flow control and online monitoring of the flow using a high-speed camera, and steps towards optimizing the flow and laser parameters. The capabilities of the setup, which combines femtosecond-laser excitation, control of microfluidic cell flow, and high-speed imaging, are illustrated.
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