Tungsten
Tungsten structure
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Common Name | Tungsten | ||
|---|---|---|---|---|
| CAS Number | 7440-33-7 | Molecular Weight | 183.84000 | |
| Density | 19.3 | Boiling Point | 5660ºC | |
| Molecular Formula | W | Melting Point | 3410ºC | |
| MSDS | Chinese USA | Flash Point | -23ºC | |
| Symbol |
GHS02, GHS07 |
Signal Word | Danger | |
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Effect of particle size of PtRu nanoparticles embedded in WO3 on electrocatalysis.
J. Nanosci. Nanotechnol. 13(5) , 3591-6, (2013) Size-controlled PtRu nanoparticles embedded in WO3 were prepared by simultaneous multigun sputtering on pure targets of Pt, Ru, and WO3. The mean diameter of the PtRu nanoparticles, as confirmed by high-resolution transmission electron microscopy, can be vari... |
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Diagnostic use of cerebral and extracerebral oxysterols.
Clin. Chem. Lab Med. 42(2) , 186-91, (2004) 24S-Hydroxycholesterol (24OHC) and 27-hydroxycholesterol (27OHC) are two structurally similar oxysterols of different origins--the former almost exclusively formed in the brain and the latter formed to a lesser extent in the brain than in most other organs. H... |
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Levels of 7-oxocholesterol in cerebrospinal fluid are more than one thousand times lower than reported in multiple sclerosis.
J. Lipid Res. 46(2) , 191-5, (2005) In a recent publication [Diestel, A., O. Aktas, D. Hackel, I. Hake, S. Meier, C. S. Raine, R. Nitsch, F. Zipp, and O. Ullrich. 2003. Activation of microglial poly (ADP-ribose)-polymerase-1 by cholesterol breakdown products during neuroinflammation: a link bet... |
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Disruption of thiol homeostasis and nitrosative stress in the cerebrospinal fluid of patients with active multiple sclerosis: evidence for a protective role of acetylcarnitine.
Neurochem. Res. 28(9) , 1321-8, (2003) Recent studies suggest that NO and its reactive derivative peroxynitrite are implicated in the pathogenesis of multiple sclerosis (MS). Patients dying with MS demonstrate increased astrocytic inducible nitric oxide synthase activity, as well as increased leve... |
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Folate and methylation status in relation to phosphorylated tau protein(181P) and beta-amyloid(1-42) in cerebrospinal fluid.
Clin. Chem. 53(6) , 1129-36, (2007) Increased plasma total homocysteine (tHcy) is a risk factor for neurological diseases, but the underlying pathophysiology has not been adequately explained.We evaluated concentrations of tHcy, S-adenosyl homocysteine (SAH), S-adenosyl methionine (SAM), folate... |
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Serum uric acid levels in multiple sclerosis patients correlate with activity of disease and blood-brain barrier dysfunction.
Eur. J. Neurol. 9(3) , 221-6, (2002) Several findings suggest lower levels of serum uric acid in multiple sclerosis (MS) patients. The aim of this study is to investigate relationships of uric acid serum levels in relapse-remitting (RR) MS patients with clinical activity of disease and blood-bra... |
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Inflammatory multiple-sclerosis plaques generate characteristic metabolic profiles in cerebrospinal fluid.
PLoS ONE 2(7) , e595, (2007) Multiple sclerosis (MS), an inflammatory disease of the central nervous system, manifests itself in numerous forms and stages. A number of brain metabolic alterations have been reported for MS patients vs. control subjects. However, metabolite profiles of cer... |
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Quantification of chemical elements in blood of patients affected by multiple sclerosis.
Ann. Ist. Super. Sanita 41(2) , 213-6, (2005) Although some studies suggested a link between exposure to trace elements and development of multiple sclerosis (MS), clear information on their role in the aetiology of MS is still lacking. In this study the concentrations of Al, Ba, Be, Bi, Ca, Cd, Co, Cr, ... |
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Oxidative stress in patients with multiple sclerosis.
Ukr. Biokhim. Zh. 71(3) , 112-5, (1999) It is well known that brain and nervous system cells are prone to oxidative damage because of their relatively low content of antioxidants, especially enzymatic ones, and of the high levels of both membrane polyunsaturated fatty acids (PUFA) and iron easily r... |
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Measurement of immune markers in the serum and cerebrospinal fluid of multiple sclerosis patients during clinical remission.
J. Neurol. 242(2) , 53-8, (1995) Magnetic resonance imaging of multiple sclerosis (MS) patients often shows active inflammatory lesions despite clinical remission. No immunological marker of disease activity has been identified in these patients. Concentrations of neopterin, interleukin-2 (I... |