Neuronal imaging with colloidal gold.

Neuronal imaging with colloidal gold.
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胶体金神经元成像。

DOI:
10.1111/j.1365-2818.1989.tb04297.x
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发表时间:
1989
影响因子:
2
通讯作者:
vandenPol,AN
vandenPol,AN
中科院分区:
工程技术4区
文献类型:
--
作者:
vandenPol,AN

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胶体金易于制备,并且容易吸附到许多免疫试剂和其他蛋白质上,用于神经元可视化的各种用途。金探针作为免疫标记用于光学和电子显微镜。作为一种用于检测蛋白质、肽或氨基酸的超微结构免疫细胞化学标记物,金可用于包埋前厚切片或薄切片的免疫染色,或用于在常规或不常见的包埋基质中包埋组织后的切片的免疫染色。由于其颗粒性质,金作为免疫标记有助于对切片上的相对抗原密度进行半定量分析。不同尺寸金颗粒的各种组合或酶免疫标记与胶体金或银强化金的双重免疫标记,可很好地用于同一组织切片中两种抗原的超微结构免疫细胞化学定位。胶体金可以用光学显微镜、透射和扫描电子显微镜以及激光共聚焦显微镜检测。银增强允许在光学和电子显微镜水平上检测金,并增加免疫金程序的灵敏度。胶体金可作为示踪剂用于体内和体外神经元转运和内化的生理学研究;计算机辅助视频成像技术允许检测和跟踪活细胞中的单个金颗粒。
Colloidal gold is easily prepared, and readily adsorbs to a number of immunoreagents and other proteins for a wide variety of uses for neuronal visualization. Gold probes serve a role as immunolabels for both light and electron microscopy. As an ultrastructural immunocytochemical marker for detection of proteins, peptides or amino acids, gold can be used for immunostaining thick or thin sections prior to embedding, or for immunostaining ultrathin sections after embedding tissue in conventional or unusual embedding matrices. By virtue of its particulate nature, gold as an immunolabel facilitates a semi‐quantitative analysis of relative antigen densities on ultrathin sections. Various combinations of different size gold particles or dual immunolabelling with enzymatic immunolabels together with colloidal gold or silver‐intensified gold serve well for ultrastructural immunocytochemical localization of two antigens in the same tissue section. Colloidal gold can be detected with light microscopy, transmission and scanning electron microscopy, and with confocal laser microscopy. Silver intensification allows detection of gold at both the light and electron microscope level, and increases the sensitivity of immunogold procedures. Colloidal gold is useful as a tracer for physiological studies of transport and internalization in neuronsin vivoandin vitro;computer‐assisted video imaging techniques allow detection and tracking of single gold particles in living cells.
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发表时间: 1982
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DOI: --
发表时间: 1983
期刊:
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