نتایج جستجو برای: copper sulfide

تعداد نتایج: 99169  

Journal: :Cancer research 1962
J P GILMAN

Nickel sulfide, nickel oxide, cobalt sulfide, and cobalt oxide were shown to be car cinogenic on single intramuscular injection in rats. The sulfide of each metal induced a significantly higher tumor incidence than did its oxide. Comparisons between average latent periods and between measures of tumor progression also indicated that the presence of the sulfide enhances the carcinogenic activity...

Journal: :Chemical communications 2012
Sachitanand M Mali Sandip V Jadhav Hosahudya N Gopi

A novel, ultrafast, mild and scalable amide bond formation strategy in methanol using simple thioacids and amines is described. The mechanism suggests that the coupling reactions are initially mediated by CuSO(4)·5H(2)O and subsequently catalyzed by in situ generated copper sulfide. The pure peptides were isolated in satisfactory yields in less than 5 minutes.

شفیعی, بهنام, شهاب پور, جمشید,

Based on this study, the avcfiige gold and silver graJcs in the SaT Chesbmeh porphyry copper deposil arc 0.06 and 1.22 gil re.'ipcct ivcly which arc very different from the o nes repon ed previously. In the bioti lic andes ite and a!ICrcd phyllic/potassic samples from the siock, the high positin: correlation between the hypogene copper and gold grades ( r=0.81 ), and gold 'lIld silw.f grad...

Journal: :Materials advances 2022

Honeycomb structured copper indium sulfide layers are successfully realized via a nanosphere lithography route employing polystyrene array templates and metal xanthates or nanocrystal ink.

2010
Lori Saltzman

Figure 6.1 Scatterplot Showing the Relationship Between a) S 8 Concentration (mg/kg) and Hydrogen Sulfide Flux and b) Strontium (mg/kg) and Hydrogen Sulfide Flux Figure 6.2 Scatterplot Showing the Relationship between S 8 Concentration (mg/kg) and a) Sulfur Dioxide Emission Rate and b) Carbon Disulfide Emission Rate Figure 6.3 Correlation of S 8 and Strontium in a) Catalog Samples and b) Homes ...

2014
Bahman Elyassi Yasser Al Wahedi Nafiseh Rajabbeigi Prashant Kumar Jong Seok Jeong Xueyi Zhang Parveen Kumar Veerappan V. Balasubramanian Marios S. Katsiotis K. Andre Mkhoyan Nikos Boukos Saleh Al Hashimi Michael Tsapatsis

Spatially well-distributed copper-zinc oxides supported on mesoporous silica (SBA-15 and commercial silica gel) showed high adsorption capacity for hydrogen sulfide (as high as 80 mgS/gsorbent) and stability during cyclic adsorption-regeneration process. 2014 Elsevier Inc. All rights reserved.

2017
Alex Dyson Felipe Dal-Pizzol Giovanni Sabbatini Anna B Lach Federica Galfo Juliano Dos Santos Cardoso Bruna Pescador Mendonça Iain Hargreaves Bernardo Bollen Pinto Daniel I Bromage John F Martin Kevin P Moore Martin Feelisch Mervyn Singer

BACKGROUND Early revascularization of ischemic organs is key to improving outcomes, yet consequent reperfusion injury may be harmful. Reperfusion injury is largely attributed to excess mitochondrial production of reactive oxygen species (ROS). Sulfide inhibits mitochondria and reduces ROS production. Ammonium tetrathiomolybdate (ATTM), a copper chelator, releases sulfide in a controlled and nov...

Journal: :Astrobiology 2013
Pablo Sobron Charles N Alpers

The Iron Mountain Mine Superfund Site near Redding, California, is a massive sulfide ore deposit that was mined for iron, silver, gold, copper, zinc, and pyrite intermittently for nearly 100 years. As a result, both water and air reached the sulfide deposits deep within the mountain, producing acid mine drainage consisting of sulfuric acid and heavy metals from the ore. Particularly, the draina...

Journal: :Chemical communications 2010
Yuming Guo Jie Zhang Lin Yang Huajie Wang Feifei Wang Zhi Zheng

Copper sulfide amorphous nanoparticles and nanocrystals were prepared successfully by a special process. These CuS nanoparticles could specifically and significantly induce the apoptosis and inhibit the proliferation of human cancer cells rather than normal cells. Moreover, the biological activities of these nanoparticles are related to their polymorphs.

Journal: :Nano letters 2008
Yue Wu Cyrus Wadia Wanli Ma Bryce Sadtler A Paul Alivisatos

We present the rational synthesis of colloidal copper(I) sulfide nanocrystals and demonstrate their application as an active light absorbing component in combination with CdS nanorods to make a solution-processed solar cell with 1.6% power conversion efficiency on both conventional glass substrates and flexible plastic substrates with stability over a 4 month testing period.

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