電顯染劑  新配方  效果更卓著

電子顯微鏡染料 : 甲酸鈾

Uranyl Formate

UO2(CHO2)2- H2O

Electron dense, heavy metal compounds of uranium, tungsten and molybdenum have long been utilized for "negative staining" in electron microscopy. As demand for ultra-fine structure in biomolecules has increased, new fine grain structure materials are required.

在電子顯微鏡應用中需要利用鈾、鎢和鉬作為高密度電場及重金屬材料於陰染色，為了提升超銳利之生物分子結構形態需要，更新更銳利細微結構材料研究一直是科學家所追求的。

Formosa Transcrip, Inc. is pleased to offer uranyl formate, UO2(CHO2)2- H2O, as an advancement in negative EM staining. The fine grain structure, fast biomedical tissue fixation properties and stability of this material make it unique for many imaging protocols.  

本公司最先進產品鈾甲酸UO2(CHO2)2- H2O作為電子顯微鏡染劑，提升更銳利分子結構，更快速更安定之生醫組織固定材料道具，唯一能夠應用於各種電顯影像實驗案例。其效果會比Uranyl acetate醋酸鈾醯效果更令人滿意。

　

Density: 3.7g/cc 比重：: 3.7g/cc
Appearance: solid yellow crystals 外觀：固態黃色結晶

電顯 效果

Photo Caption: Negative stain electron microscopy of the integrin α5β1 headpiece with and without a bound fibronectin (Fn) fragment containing Fn domains 7 to 10 (Fn9-10).

Electron Micrographs courtesy of Tom Walz, Harvard Medical School.

                                       

a: Negative stain electron microscopy reveals that the α5β1 headpiece adopts two conformations, namely a closed (black circles) and an open conformation (white circles).

b and c: Class averages representing the closed (b) and the open conformation (c). Binding of Fn9-10 fragment (arrow in c) induces the open conformation of the headpiece, while the unliganded is in the closed conformation (b).

d and e: 3D reconstructions of an unliganded (d) and an Fn9-10-liganded α5β1 headpiece (e) with the fit atomic structures of the αV and β3 subunit (33) in red and blue, respectively, and of the Fn9-10 fragment (34) in white. The scale bar corresponds to 50 nm and panels b to e have a side length of 22 nm.

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