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首页> 外文期刊>Scanning >High-resolution backscatter electron detection of cell surface molecules on human platelets using the double-layer coating method and cryo field emission scanning electron microscopy
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High-resolution backscatter electron detection of cell surface molecules on human platelets using the double-layer coating method and cryo field emission scanning electron microscopy

机译:双层包被方法和冷场发射扫描电子显微镜对人体血小板上细胞表面分子的高分辨率背散射电子检测

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摘要

A model system utilizing cryo scanning electron microscopy (SEM) for the detection of putative cell adhesion molecule(s) on the surface of human platelets is described. Plunge freezing was used for cryoimmobilization of unacti- Vated and activated platelets after prefixation. Extracellular Ice was removed by sublimation to expose the surface of the Platelet membrane. Cryosamples were coated by the double- Layer method, in which unidirectional shadowing is per- Formed at an angle of 45° with 2 nm of platinum by thermal Evaporation, followed by evaporation of 5 nm of carbon at an Angle of 90° for stabilization of the platinum film.
机译:描述了利用冷冻扫描电子显微镜(SEM)检测人血小板表面上假定的细胞粘附分子的模型系统。加前缀后,将冷冻冷冻用于未活化和活化的血小板的冷冻固定。通过升华除去细胞外冰以暴露血小板膜的表面。通过双层方法涂覆低温样品,其中通过热蒸发在45°角与2 nm铂进行单向遮蔽,然后在90°角蒸发5 nm的碳以稳定碳。铂膜。

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