A fast solution switching system with temperature control for single cell measurements.

A fast solution switching system with temperature control for single cell measurements.
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用于单细胞测量的带温度控制的快速溶液切换系统

DOI:
10.1016/j.jneumeth.2011.04.023
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发表时间:
2011-07-15
影响因子:
3
通讯作者:
Jung, Seung-Ryoung
Jung, Seung-Ryoung
中科院分区:
医学4区
文献类型:
--
作者:
Koh, Duk-Su;Chen, Liangyi;Ufret-Vincenty, Carmen A.;Jung, Seung-Ryoung

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本文介绍了一种在生理温度下进行生物物理单细胞实验的灌注系统。我们的系统使用包括几个毛细管的小型热交换器来调节测试溶液的温度。在热交换器内循环的水加热或冷却在毛细管内流动的测试溶液。温度受控的溶液通过多管歧管直接输送到单个电池,该歧管可在不到1秒的时间内切换浸泡电池的溶液。这种溶液交换对于膜片钳、单细胞微电流法和微荧光法实验是最佳的。使用该系统,我们证明了胰腺β细胞的胞吐作用和TRPV1通道的激活是温度敏感的。我们还讨论了如何测量所研究的单个细胞附近的局部温度。
This article describes a perfusion system for biophysical single cell experiments at the physiological temperature. Our system regulates temperature of test solutions using a small heat exchanger that includes several capillaries. Water circulating inside the heat exchanger warms or cools test solutions flowing inside the capillaries. Temperature-controlled solutions are delivered directly to a single cell(s) through a multibarreled manifold that switches solutions bathing a cell in less than 1 s. This solution exchange is optimal for patch clamp, single-cell microamperometry, and microfluorometry experiments. Using this system, we demonstrate that exocytosis from pancreatic β cells and activation of TRPV1 channels are temperature sensitive. We also discuss how to measure local temperature near a single cell under investigation.
DOI: 10.2337/diabetes.52.7.1723
发表时间: 2003-07-01
期刊: DIABETES
影响因子: 7.7
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