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纳米钨粉

产品编号 T128183 | CAS号 7440-33-7 | 阿拉丁
Tungsten
99.9% metals basis,200nm
组合的产品项目
货号 规格 库存 价格 数量
T128183-100g 99.9% metals basis,200nm 上海(预计3-7周)
北方(预计3-7周)
 
T128183-25g 99.9% metals basis,200nm 上海(>10)
北方(2)
 
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属性

密度 19.3000
熔点 3410°C
溶解性 溶于硝酸、氢氟酸。

描述

别名 钨粉;
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标识符号 GHS02 GHS02, GHS07 GHS07
信号词 Danger
风险声明 (欧洲) R11;R36/38
安全声明(欧洲) S6;S26;S36
警示性声明 P210,P305+P351+P338
危害码(欧洲) F,Xi
危害声明 H228,H315,H319
个人防护设备 dust mask type N95 (US), Eyeshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges
RTECS YO7175000
WGK德国 3
参考文献
Souhaila Bouatra, Farid Aziat, Rupasri Mandal, An Chi Guo, Michael R Wilson, Craig Knox, Trent C Bjorndahl, Ramanarayan Krishnamurthy, Fozia Saleem, Philip Liu, Zerihun T Dame, Jenna Poelzer, Jessica Huynh, Faizath S Yallou, Nick Psychogios, Edison Dong,
Urine has long been a "favored" biofluid among metabolomics researchers. It is sterile, easy-to-obtain in large volumes, largely free from interfering proteins or lipids and chemically compl...Read More
Charlene Ng, Akihide Iwase, Yun Hau Ng, Rose Amal
This work presents insight into the self-photorechargeability of WO(3) , whereby the intercalation of positive alkali cations is accompanied by the simultaneous storage of photo-excited electrons. The...Read More
A N Fonteh, R J Harrington, A Tsai, P Liao, M G Harrington
Our aim was to determine changes in free amino acid (FAA) and dipeptide (DP) concentrations in probable Alzheimer's disease (pAD) subjects compared with control (CT) subjects using liquid chromat...Read More
M A MA Lovell, W R WR Markesbery
Markers of oxidative stress are increased in cerebrospinal fluid (CSF) of patients with Alzheimer disease (AD), although none of those reported are appropriate diagnostic markers because of the overla...Read More
M L Selley, D R Close, S E Stern
There is evidence that increased blood concentrations of homocysteine may be a risk factor for Alzheimer's disease. (E)-4-hydroxy-2-nonenal (HNE) is a neurotoxic product of lipid peroxidation tha...Read More
J A JA Molina, F J FJ Jiménez-Jiménez, A A Hernánz, E E Fernández-Vivancos, S S Medina, F F de Bustos, C C Gómez-Escalonilla, Y Y Sayed
Thiamine is an essential cofactor for several important enzymes involved in brain oxidative metabolism, such as the alpha-ketoglutarate dehydrogenase complex (KGDHC), pyruvate-dehydrogenase complex (P...Read More
Takashi T Abe, Hideo H Tohgi, Chiaki C Isobe, Takahiko T Murata, Chigumi C Sato
To investigate the possible role of oxidative RNA damage in the pathogenesis of Alzheimer's disease (AD), the concentrations of the oxidative stress marker 8-hydroxyguanosine (8-OHG) were measure...Read More
K J B?r, S Franke, B Wenda, S Müller, R Kientsch-Engel, G Stein, H Sauer
Increasing evidence suggests an interaction of oxidative stress and the formation of advanced glycation end products (AGE) in the onset and progression of Alzheimer's disease. We studied levels o...Read More
S S Engelborghs, B B Marescau, P P PP De Deyn
To study changes in amino acid metabolism and biogenic amines in Parkinson's disease, we set up a prospective study and measured biogenic amines, their main metabolites, and 22 different amino ac...Read More
Beatrice B Bocca, Giovanni G Forte, Francesco F Petrucci, Anna A Pino, Francesca F Marchione, Giuseppe G Bomboi, Oreste O Senofonte, Franco F Giubilei, Alessandro A Alimonti
The haematic concentration of 26 metals and the oxidative damage in 60 patients (20 males and 40 females) affected by Alzheimer's disease and 44 healthy individuals (33 males and 11 females) were...Read More
M A MA Raskind, E R ER Peskind, C C Holmes, D S DS Goldstein
High cerebrospinal fluid (CSF) norepinephrine (NE) concentrations in aging and Alzheimer's disease (AD) could reflect decreased NE clearance from central nervous system (CNS) extracellular fluid ...Read More
Jian-ping Jia, Jian-min Jia, Wei-dong Zhou, Min Xu, Chang-biao Chu, Xin Yan, Yong-xin Sun
An important aspect of Alzheimer's disease (AD) is loss or impairment of cholinergic neurons. It is controversial whether there is a similar cholinergic impairment and cerebral deficit of acetylc...Read More
H U HU Shetty, H W HW Holloway, M B MB Schapiro
Previous studies suggest the presence of increased concentrations of cerebral myo-inositol in Alzheimer disease (AD). To characterize this abnormality further, we quantified myo-inositol and several o...Read More
M O MO Kristensen, N C NC Gulmann, J E JE Christensen, K K Ostergaard, K K Rasmussen
The cobalamin status was evaluated in Alzheimer dementia (n = 26), other dementias (n = 24), various gerontopsychiatric disorders (n = 25), and in neuro-psychiatrically healthy controls (n = 20). Supp...Read More
Anna Walter, Ulrike Korth, Michael Hilgert, Joachim Hartmann, Oksana Weichel, Marion Hilgert, Klaus Fassbender, Andrea Schmitt, Jochen Klein
Experimental and clinical studies give evidence for breakdown of membrane phospholipids during neurodegeneration. In the present study, we measured the levels of glycerophosphocholine (GPCh), phosphoc...Read More
Giovanni Forte, Andrea Visconti, Simone Santucci, Anna Ghazaryan, Lorenzo Figà-Talamanca, Stefania Cannoni, Beatrice Bocca, Anna Pino, Nicola Violante, Alessandro Alimonti, Marco Salvetti, Giovanni Ristori
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 s...Read More
C C Syburra, S S Passi
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 me...Read More
G G Toncev, B B Milicic, S S Toncev, G G Samardzic
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) ...Read More
V V Calabrese, G G Scapagnini, A A Ravagna, R R Bella, D A DA Butterfield, M M Calvani, G G Pennisi, A M AM Giuffrida Stella
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 inducibl...Read More
Giovanni G Forte, Alessandro A Alimonti, Anna A Pino, Paolo P Stanzione, Sonia S Brescianini, Livia L Brusa, Giuseppe G Sancesario, Nicola N Violante, Beatrice B Bocca
Twenty-six metals and the oxidative status in 71 patients affected by Parkinson's disease and 44 healthy individuals were compared in order to identify potential biomarkers of the disease. In the...Read More
R Shukla, M Rajani, N Srivastava, M K Barthwal, M Dikshit
Evidence from clinical and experimental studies supports the hypothesis of free radical-mediated damage of dopaminergic neurons in the pathology of Parkin's disease (PD). The present study was un...Read More
M Naoi, W Maruyama
Dopamine neurons in the substantia nigra of human brain are selectively vulnerable and the number decline by aging at 5-10% per decade. Enzymatic and non-enzymatic oxidation of dopamine generates reac...Read More
P A PA LeWitt, M P MP Galloway, W W Matson, P P Milbury, M M McDermott, D K DK Srivastava, D D Oakes
We used two analytic methods (a multichannel coulometric electrode array with high-performance liquid chromatography, and gas chromatography-mass spectrophotometry) to measure CSF dopamine (DA) and it...Read More
Takashi T Abe, Chiaki C Isobe, Takahiko T Murata, Chigumi C Sato, Hideo H Tohgi
In order to investigate the possible role of oxidative RNA damage in the pathogenesis of Parkinson's disease (PD), the concentrations of the oxidative stress marker 8-hydroxyguanosine (8-OHG) wer...Read More
Wen Zhang, Yunfeng Xie, Jing Gu, Shiyun Ai, Jian Wang, Katsunobu Yamamoto, Litong Jin
The fabrication and application of a novel electrochemical detector (ED) with nano crystalline Ce-doped lead dioxide film chemically modified electrode (CME) for liquid chromatography (LC) were descri...Read More
Y Y Kotake, Y Y Tasaki, Y Y Makino, S S Ohta, M M Hirobe
1-Benzyl-1,2,3,4-tetrahydroisoquinoline (1BnTIQ) was detected as a novel endogenous amine in mouse brain and parkinsonian CSF by using the gas chromatography-selected ion-monitoring method. The level ...Read More
D A DA Loeffler, P A PA LeWitt, A J AJ DeMaggio, P L PL Juneau, P E PE Milbury, W R WR Matson
Though depletion of CSF homovanillic acid (HVA) concentration has often been regarded as a direct indicator of dopamine (DA) deficiency in Parkinson's Disease (PD), CSF HVA is normal in mildly af...Read More
Johannes Levin, Kai B?tzel, Armin Giese, Michael Vogeser, Stefan Lorenzl
Increasing evidence suggests that elevated levels of homocysteine (Hcy) and methylmalonate (MMA) may be involved in the pathogenesis of neurodegenerative diseases....Read More
E J EJ Pappert, C C CC Tangney, C G CG Goetz, Z D ZD Ling, J W JW Lipton, G T GT Stebbins, P M PM Carvey
To determine if ventricular cerebrospinal fluid (vCSF) alpha-tocopherol levels in Parkinson's disease (PD) patients can be increased by oral alpha-tocopherol supplementation and whether vCSF leve...Read More
Valerio V Leoni, Thomas T Masterman, Fariba S FS Mousavi, Bengt B Wretlind, Lars-Olof LO Wahlund, Ulf U Diczfalusy, Jan J Hillert, Ingemar I Bj?rkhem
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 t...Read More
Rima R Obeid, Mariz M Kasoha, Jean-Pierre JP Knapp, Panagiotis P Kostopoulos, George G Becker, Klaus K Fassbender, Wolfgang W Herrmann
Increased plasma total homocysteine (tHcy) is a risk factor for neurological diseases, but the underlying pathophysiology has not been adequately explained....Read More
Norbert W Lutz, Angèle Viola, Irina Malikova, Sylviane Confort-Gouny, Bertrand Audoin, Jean-Philippe Ranjeva, Jean Pelletier, Patrick J Cozzone
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 patient...Read More
C E CE Shaw, P R PR Dunbar, H A HA Macaulay, T J TJ Neale
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 th...Read More
Sung Jong Yoo, Hee Young Park, Seung Jun Hwang, Sung Gyu Pyo, Soo-Kil Kim, Yung-Eun Sung, Tae-Hoon Lim
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 hi...Read More
Jesper C Holst, Mia B Olsen, Chad Paton, Kazuhide Nagashima, Martin Schiller, Daniel Wielandt, Kirsten K Larsen, James N Connelly, Jes K J?rgensen, Alexander N Krot, Ake Nordlund, Martin Bizzarro
Refractory inclusions [calcium-aluminum-rich inclusions, (CAIs)] represent the oldest Solar System solids and provide information regarding the formation of the Sun and its protoplanetary disk. CAIs c...Read More
E E Sabbioni, C C Minoia, R R Pietra, S S Fortaner, M M Gallorini, A A Saltelli
The EURO TERVIHT (Trace Element Reference Values in Human Tissues), recently initiated, aims to establish and compare trace metal reference values in inhabitants from the different EC countries. The p...Read More
Humberto Terrones, Florentino López-Urías, Mauricio Terrones
Although bulk hexagonal phases of layered semiconducting transition metal dichalcogenides (STMD) such as MoS2, WS2, WSe2 and MoSe2 exhibit indirect band gaps, a mono-layer of STMD possesses a direct b...Read More
Jingjing Du, Lijian Xu, Baizhen Chen, Li De
Ni-W alloy coatings were prepared by electrodeposition technique with citric acid as a complexing agent. The influence of the main technical parameters on W content in the Ni-W alloy coatings were inv...Read More
Thais T Guaraldo, Thalita B Zanoni, Susana I C de Torresi, Vinicius R Gon?ales, Guilherme J Zocolo, Danielle P Oliveira, Maria Valnice B Zanoni
New assays with HepG2 cells indicate that Indigo Carmine (IC), a dye that is widely used as additive in many food and pharmaceutical industries exhibited cytotoxic effects. This work describes the dev...Read More
Edward Iller, Danuta Wawszczak, Marcin Konior, Halina Polkowska-Motrenko, Jacek J Milczarek, Ludwik Górski
The gel composites of WO3-ZrO2, WO3-TiO2, WO3-ZrO2-SiO2 at different molar ratios of oxides were synthesized. The elution profiles of the generator columns packed with gel samples activated at the Pol...Read More
Chongshen Guo, Shu Yin, Qiang Dong, Takeshi Kimura, Miyuki Tanaka, Le Thi Hang, Xiaoyong Wu, Tsugio Sato
For fabricating the crystal of Rb(x)WO3, the solvothermal process was performed using a mixed medium of water and ethanol as solvent. It has been found that the morphological evolutions of samples wer...Read More
Blake H Currier, John J Munro, David C Medich
Monte Carlo simulation techniques using a Monte Carlo N-Particle code (MCNP5) analyzed six Source Production & Equipment Co., Inc., Se industrial radiography sources to determine an appropriate ai...Read More
Shi-Jie Yuan, Hui He, Guo-Ping Sheng, Jie-Jie Chen, Zhong-Hua Tong, Yuan-Yuan Cheng, Wen-Wei Li, Zhi-Qi Lin, Feng Zhang, Han-Qing Yu
Electrochemically active bacteria (EAB) are ubiquitous in environment and have important application in the fields of biogeochemistry, environment, microbiology and bioenergy. However, rapid and sensi...Read More
Denys Shevchenko, Ping Huang, Volodymyr V Bon, Magnus F Anderlund, Vladimir N Kokozay, Stenbj?rn Styring, Anders Thapper
A rare example of a "monomeric" triple transition-metal substituted Keggin anion has been synthesized and characterized by various methods including X-ray crystallography, ESI and MALDI mass...Read More
D Cereceda, A Stukowski, M R Gilbert, S Queyreau, Lisa Ventelon, M-C Marinica, J M Perlado, J Marian
Screw dislocations in bcc metals display non-planar cores at zero temperature which result in high lattice friction and thermally-activated strain rate behavior. In bcc W, electronic structure molecul...Read More
Xiaodong Wen, Qingwen Deng, Jiwei Wang, Shengchun Yang, Xia Zhao
In this work, an improved method of ionic liquid based-single drop microextraction (IL-SDME) preconcentration was firstly coupled with tungsten coil electrothermal atomic absorption spectrometry (W-co...Read More
G Galloro, L Magno, S Ruggiero, P Iovino, C Formisano, L Cortese, F Fusco, C Meola, G M Carlomagno
Background and study aims: Thermal injury of the colonic wall during polypectomy may induce complications such as bleeding and perforation. To date, the role of the snare material in these injuries ha...Read More
Inyoung Jeong, Changshin Jo, Arockiam Anthonysamy, Jung-Min Kim, Eunae Kang, Jongkook Hwang, Easwaramoorthi Ramasamy, Shi-Woo Rhee, Jin Kon Kim, Kyoung-Su Ha, Ki-Won Jun, Jinwoo Lee
A disulfide/thiolate (T(2) /T(-) ) redox-couple electrolyte, which is a promising iodine-free electrolyte owing to its transparent and noncorrosive properties, requires alternative counter-electrode m...Read More
Lin Lu, Grace Chee, Kara Yamada, Soojin Jun
In this study, a label-free biosensor based on electrochemical impedance measurement followed by dielectrophoretic force and antibody-antigen interaction was developed for detection and quantification...Read More
Valery Borovikov, Xian-Zhu Tang, Danny Perez, Xian-Ming Bai, Blas P Uberuaga, Arthur F Voter
Atomistic computer simulations were performed to study the influence of radiation-induced damage on grain boundary (GB) sliding processes in bcc tungsten (W), the divertor material in the ITER tokamak...Read More
Xiang Li, Wei Wei, Qifa Zhou, K Kirk Shung, Zhongping Chen
The catheter-based intravascular photoacoustic (IVPA) imaging for diagnosing atherosclerosis, which can provide optical absorption contrast of the arterial wall besides acoustic scattering contrast fr...Read More
Wenjun Luo, Jiajia Wang, Xin Zhao, Zongyan Zhao, Zhaosheng Li, Zhigang Zou
Photoelectrochemical water splitting is an attractive method to produce H(2) fuel from solar energy and water. Ion doping with higher valence states was used widely to enhance the photocurrent of an n...Read More
Pavel V Lukashev, Ji-Hyun Kim, Seolun Yang, Jae-Sung Kim, Xumin Chen, Geoffrey Rojas, Jan Honolka, Ralph Skomski, Axel Enders, Renat F Sabirianov
First-principle calculations are employed to show that the magnetic structure of small atomic clusters of Co, formed on a crystalline W(110) surface and containing 3-12 atoms, strongly deviates from t...Read More
Bing Sun, Kun Zhang, Lijian Chen, Lintong Guo, Shiyun Ai
A universal photoelectrochemical (PEC) sensing platform was fabricated based on the composition of protoporphyrin IX (PPIX), tungsten trioxide (WO3) and reduced graphene oxide (rGO) on indium tin oxid...Read More
Abhishek Prasad, Qing-Shan Xue, Viswanath Sankar, Toshikazu Nishida, Gerry Shaw, Wolfgang Streit, Justin C Sanchez
The long-term performance of chronic microelectrode array implants for neural ensemble recording is affected by temporal degradation in signal quality due to several factors including structural chang...Read More
S Ia Lanina, N M Kaminskaia, N E Beniaev, V Iu Suslova, M S Grigor'evskaia
We're sorry this abstract is currently not available....Read More
Michael L Crichton, Xianfeng Chen, Han Huang, Mark A F Kendall
The recent emergence of micro-devices for vaccine delivery into upper layers of the skin holds potential for increased immune responses using physical means to target abundant immune cell populations....Read More
Jiajun Mei, Kurtis M Carsch, Cody R Freitag, T Brent Gunnoe, Thomas R Cundari
Cp*W(O)(2)(CH(2)SiMe(3)) (1) (Cp* = η(5)-pentamethylcyclopentadienyl) reacts with oxygen atom donors (e.g., H(2)O(2), PhIO, IO(4)(-)) in THF/water to produce TMSCH(2)OH (TMS = trimethylsilyl). For th...Read More
J Xiao, P Liu, Y Liang, H B Li, G W Yang
Ultrafine tungsten nanocrystals (average size of 3 nm) with a metastable phase (beta-tungsten with A15 structure, β-W) have been prepared by laser ablation of tungsten in liquid nitrogen. The as-prep...Read More
Weijie Zhao, Zohreh Ghorannevis, Leiqiang Chu, Minglin Toh, Christian Kloc, Ping-Heng Tan, Goki Eda
Geometrical confinement effect in exfoliated sheets of layered materials leads to significant evolution of energy dispersion in mono- to few-layer thickness regime. Molybdenum disulfide (MoS(2)) was r...Read More
Fredrik Uhlén, Daniel Nilsson, Anders Holmberg, Hans M Hertz, Christian G Schroer, Frank Seiboth, Jens Patommel, Vivienne Meier, Robert Hoppe, Andreas Schropp, Hae Ja Lee, Bob Nagler, Eric Galtier, Jacek Krzywinski, Harald Sinn, Ulrich Vogt
Focusing hard x-ray free-electron laser radiation with extremely high fluence sets stringent demands on the x-ray optics. Any material placed in an intense x-ray beam is at risk of being damaged. Ther...Read More
Zhigang Chen, Qian Wang, Huanli Wang, Lisha Zhang, Guosheng Song, Linlin Song, Junqing Hu, Hongzhi Wang, Jianshe Liu, Meifang Zhu, Dongyuan Zhao
A new photothermal coupling agent for photothermal ablation (PTA) therapy of tumors is developed based on ultrathin PEGylated W18O49 nanowires. After being injected with the nanowire solution, the in ...Read More
Patrick Allard, Romain Darnajoux, Karine Phalyvong, Jean-Philippe Bellenger
The acquisition of essential metals, such as the metal cofactors (molybdenum (Mo) and iron (Fe)) of the nitrogenase, the enzyme responsible for the reduction of dinitrogen (N(2)) to ammonium, is criti...Read More
Karel Deprez, Stefaan Vandenberghe, Karen Van Audenhaege, Jonas Van Vaerenbergh, Roel Van Holen
Purpose: The construction of complex collimators with a high number of oblique pinholes is very labor intensive, expensive or is sometimes impossible with the current available techniques (drilling, m...Read More
Prabhakara Reddy PR Nagareddy, Harish H Vasudevan, John H JH McNeill
Normalization of hyperglycemia and hyperlipidemia is an important objective in preventing diabetes-induced cardiac dysfunction. Our study investigated the effects of sodium tungstate on cardiac perfor...Read More
Ana Navas-Acien, Ellen K Silbergeld, Richey Sharrett, Emma Calderon-Aranda, Elizabeth Selvin, Eliseo Guallar
Exposure to metals may promote atherosclerosis. Blood cadmium and lead were associated with peripheral arterial disease (PAD) in the 1999-2000 National Health and Nutrition Examination Survey (NHANES)...Read More
A A Koutsospyros, W W Braida, C C Christodoulatos, D D Dermatas, N N Strigul
Since its discovery, tungsten, a transition element of Group VIb of the Periodic Table of Elements, and its compounds have been considered environmentally benign. Its presence in biological and drinki...Read More
Katrin K Schr?der, Carmine C Vecchione, Oliver O Jung, Judith G JG Schreiber, Ronit R Shiri-Sverdlov, Patrick J PJ van Gorp, Rudi R Busse, Ralf P RP Brandes
Hyperlipidemia enhances xanthine oxidase (XO) activity. XO is an important source of reactive oxygen species (ROS). Since ROS are thought to promote atherosclerosis, we hypothesized that XO is involve...Read More
Matthias M Peuster, Christoph C Fink, Christian C von Schnakenburg, Gerd G Hausdorf
To evaluate the failure of mechanically detachable spirals produced from tungsten (MDS, Balt, Montmorency, France) and the toxicity of elevated levels of tungsten in the serum subsequent to their impl...Read More

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