75633
四氧化锇 溶液
suitable for electron microscopy, 2% in H2O
别名:
氧化锇(IV)
一般描述
四氧化锇(OsO4)也被称为锇,是一种重的四面体对称分子。它可同时作为电镜的染料和非凝固型固定剂,主要用于组织病理学实验室中的生物组织检测。标本用四氧化锇再固定,以确保脂质保存。
应用
四氧化锇溶液被用作电子显微镜中的固定剂。
生化/生理作用
四氧化锇也被称为锇,主要用作组织的二次固定剂。该分子与脂类部分反应,并负责氧化脂肪酸的不饱和键。这种反应增加了生物样品的密度和对比度。在正常组织中,锇的存在导致强烈的黑色染色,正常眼睛可以看到。此外,它还可用作电子显微镜检查中的媒染剂(在后期与染色剂或染料结合的分子),从而增强铅染色。
警示用语:
Danger
危险分类
Acute Tox. 2 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Eye Dam. 1 - Skin Irrit. 2
储存分类代码
6.1B - Non-combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
WGK
WGK 1
闪点(°F)
Not applicable
闪点(°C)
Not applicable
个人防护装备
Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter
法规信息
监管及禁止进口产品
3-acetylpyridine-induced degeneration in the adult ascidian neural complex: Reactive and regenerative changes in glia and blood cells.
Medina BN, et al.
Developmental neurobiology, 75, 877-877 (2015)
Regulation of nitric-oxide production in hemocytes of the ascidian Phallusia nigra.
de Barros CM, et al.
Nitric Oxide, 38, 26-26 (2014)
Electron Microscopy: Principles and Techniques for Biologists (1999)
Bianca N S P Medina et al.
Developmental neurobiology, 75(8), 877-893 (2014-12-09)
Ascidians are interesting neurobiological models because of their evolutionary position as a sister-group of vertebrates and the high regenerative capacity of their central nervous system (CNS). We investigated the degeneration and regeneration of the cerebral ganglion complex of the ascidian
F Wyss et al.
Veterinary pathology, 52(6), 1235-1242 (2015-01-27)
Pododermatitis is frequent in captive flamingos worldwide, but little is known about the associated histopathologic lesions. Involvement of a papillomavirus or herpesvirus has been suspected. Histopathologic evaluation and viral assessment of biopsies from 19 live and 10 dead captive greater
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