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Biochemistry
荧光显微镜下福尔马林固定人脑组织背景荧光的简单消除
荧光显微镜下福尔马林固定人脑组织背景荧光的简单消除
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Biochemistry
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JoVE Journal Biochemistry
Simple Elimination of Background Fluorescence in Formalin-Fixed Human Brain Tissue for Immunofluorescence Microscopy

荧光显微镜下福尔马林固定人脑组织背景荧光的简单消除

Full Text
18,181 Views
16:31 min
September 3, 2017

DOI: 10.3791/56188-v

Yulong Sun1, Philbert Ip2, Avijit Chakrabartty1,2

1Department of Medical Biophysics,University of Toronto, 2Department of Biochemistry,University of Toronto

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Please note that some of the translations on this page are AI generated. Click here for the English version.

生物样品的背景自发荧光常常使荧光成像技术复杂化, 特别是在老年人类 postmitotic 组织中。本协议描述了如何有效地去除这些样品的自体荧光, 利用商业上可用的发光二极管光源在免疫之前 photobleach 样品。

免疫荧光显微镜检查中的一个常见问题是存在内源性背景荧光,这可能会干扰您的信号。在许多情况下,这种自发荧光会使您的结果无法解释。在该协议中,我们将演示如何使用商用 LED 台灯的光漂白从人脑组织样品中去除自发荧光。

这种方法的主要优点是与当前技术相比,在不牺牲有效性的情况下显著节省成本,并且没有外源性化合物引入样品中。开始之前,请准备 1 次 tris 缓冲盐水、TBS 和 10% 叠氮化钠的储备液。对于您想要处理的每三个标准尺寸的显微镜载玻片,您将需要一个 100 毫米 x 100 毫米见方的培养皿作为载玻片室。

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