Results 261 to 270 of about 84,971 (337)

Osmium absorption after osmium tetroxide skin and eye exposure

Basic & Clinical Pharmacology & Toxicology, 2020
AbstractOsmium tetroxide is a strong oxidizing agent used in electron microscopy. Eye exposure may cause severe burns, and after inhalation or ingestion damage to the respiratory or gastrointestinal tract occurs. Exposure to osmium and its compounds is extremely rare.
Natalie Friedova, Daniela Pelclova, Nikola Obertova, Karel Lach, Katerina Kesslerova, Pavel Kohout   +5 more
openaire   +3 more sources

Osmium Tetroxide-Potassium Ferricyanide

2013
(OsO4) [20816-12-0] O4Os (MW 254.20) InChI = 1S/4O.Os InChIKey = VUVGYHUDAICLFK-UHFFFAOYSA-N (K3Fe(CN)6) [13746-66-2] C6FeK3N6 (MW 329.27) InChI = 1S/6CN.Fe.3K/c6*1-2;;;;/q6*-1;+3;3*+1 InChIKey = BYGOPQKDHGXNCD-UHFFFAOYSA-N (cis dihydroxylation of alkenes; asymmetric dihydroxylation of alkenes, enynes, polyenes, and enol
Yun Gao, Young Cheun
openaire   +2 more sources

Oxidation of Tertiary Silanes by Osmium Tetroxide

Inorganic Chemistry, 2007
In the presence of an excess of pyridine ligand L, osmium tetroxide oxidizes tertiary silanes (Et(3)SiH, (i)Pr(3)SiH, Ph(3)SiH, or PhMe(2)SiH) to the corresponding silanols. With L = 4-tert-butylpyridine ((t)Bupy), OsO(4)((t)Bupy) oxidizes Et(3)SiH and PhMe(2)SiH to yield 100 +/- 2% of silanol and the structurally characterized osmium(VI) mu-oxo dimer [
Karine, Valliant-Saunders, Erica, Gunn, G Robert, Shelton, David A, Hrovat, Weston Thatcher, Borden, James M, Mayer   +5 more
openaire   +3 more sources

Potassium Dichromate with Osmium Tetroxide

Cold Spring Harbor Protocols, 2022
openaire   +2 more sources

Dermal discoloration due to osmium tetroxide

Clinical Toxicology, 2023
Osmium tetroxide is a strong oxidizing agent. After dermal exposure to osmium tetroxide, skin discoloration and red papules can occur. We describe a patient with skin discoloration due to osmium tetroxide.A 25-year-old postgraduate student unintentionally exposed his hand to osmium tetroxide while working in a laboratory setting.
Satsuki Naruse, Shota Takashima, Ken Natsuga, Hideyuki Ujiie   +3 more
openaire   +2 more sources

Traumatic osmium tetroxide inoculation

Journal of the American Academy of Dermatology, 2001
Osmium tetroxide is a highly oxidizing, corrosive compound commonly found in electron microscopy laboratories. Although osmium tetroxide is known to cause rapid damage to organic tissue, its cutaneous effects have not been well studied. We report a case of traumatic inoculation from a broken vial of 4% osmium tetroxide.
J J, Ligon, J L, Abraham, A S, Boyd
openaire   +2 more sources

Alkane Oxidation by Osmium Tetroxide

Journal of the American Chemical Society, 2005
Aqueous alkaline OsO4 at 85 degrees C oxidizes saturated alkanes, including primary, secondary, and tertiary C-H bonds. Isobutane affords tert-butanol in quantitative yield based on consumed OsO4. Cyclohexane is oxidized to a mixture of adipate and succinate.
Brian C, Bales, Peter, Brown, Ahmad, Dehestani, James M, Mayer   +3 more
openaire   +2 more sources

Negative Staining with Osmium Tetroxide Vapour

Nature, 1966
NEGATIVE staining has become widely accepted as a means of visualizing macromolecular structures under the electron microscope1,2. Its advantages lie in its simplicity and the high contrast which it offers. Many of the heavy metal salts used as negative stains, however, have not always proved satisfactory because of limited resolution and because of ...
P, Barland, M, Rojkind
openaire   +2 more sources

Enhancement of immunoperoxidase staining using osmium tetroxide

Journal of Neuroscience Methods, 1983
A modification of the peroxidase-antiperoxidase immunohistochemical method involving the use of OsO4 for the visualization of antigens in tissue using thick sections is described. This modification has lead to consistent enhancement of the intensity of the reaction product and thus to a further amplification of sensitivity in this particular system ...
O, Johansson, J, Backman
openaire   +2 more sources