نتایج جستجو برای: iridium nanoparticles

تعداد نتایج: 111183  

2014
Diego J. Gavia Yeonjin Do Jiyeong Gu Young-Seok Shon

Figure 2. H NMR spectra of (a) [R4N ]2[IrX6 2−] in toluene-d8 obtained after mixing the organic (toluene-d8) layer of TOAB (2.0 mmol) and the aqueous (D2O) layer of K2IrCl6 (0.4 mmol), (b) 1-dodecanthiol (0.8 mmol) added to a, (c) 1-dodecanthiol (1.6 mmol) added to a, (d) NaBH4 (4.0 mmol) added to c, (e) S-dodecylthiosulfate (0.8 mmol) added to a, and (f) Ir nanoparticle in CDCl3 after purifica...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2018
Yanyan Zhao Ke R Yang Zechao Wang Xingxu Yan Sufeng Cao Yifan Ye Qi Dong Xizi Zhang James E Thorne Lei Jin Kelly L Materna Antonios Trimpalis Hongye Bai Sirine C Fakra Xiaoyan Zhong Peng Wang Xiaoqing Pan Jinghua Guo Maria Flytzani-Stephanopoulos Gary W Brudvig Victor S Batista Dunwei Wang

Atomically dispersed catalysts refer to substrate-supported heterogeneous catalysts featuring one or a few active metal atoms that are separated from one another. They represent an important class of materials ranging from single-atom catalysts (SACs) and nanoparticles (NPs). While SACs and NPs have been extensively reported, catalysts featuring a few atoms with well-defined structures are poor...

2006
D. L. Green C. L. Waters B. J. Anderson H. Korth R. J. Barnes

The Birkeland currents, J‖, electrically couple the high latitude ionosphere with the near Earth space environment. Approximating the spatial distribution of the Birkeland currents may be achieved using the divergence of the ionospheric electric field, E⊥, assuming zero conductance gradients such that J‖≈6p∇·E⊥. In this paper, electric field data derived from the Super Dual Auroral Radar Networ...

Journal: :Journal of neural engineering 2018
Simon C Cork Amir Eftekhar Khalid B Mirza Claudio Zuliani Konstantin Nikolic James V Gardiner Stephen R Bloom Christofer Toumazou

OBJECTIVE Vagal nerve stimulation (VNS) has shown potential benefits for obesity treatment; however, current devices lack physiological feedback, which limit their efficacy. Changes in extracellular pH (pHe) have shown to be correlated with neural activity, but have traditionally been measured with glass microelectrodes, which limit their in vivo applicability. APPROACH Iridium oxide has prev...

Journal: :Dalton transactions 2010
Hengwei Lin Mehmet Emin Cinar Michael Schmittel

Two azacrown ether appended iridium(III) complexes, 1 and 3, are described as probes for metal cations operating on oxidative-reduction electrochemiluminescence (ECL) with tri-n-propylamine as coreactant in acetonitrile. Complexes 1 and 3 exhibit a notable ECL sensing for Ba(2+) and Ag(+), respectively, through a 9-fold emission intensity enhancement and an unprecedented λmax(em) red shift. In ...

2011
William C Dooley James C Wurzer Mohamed Megahy Gary Schreiber Tapan Roy Gary Proulx Susan Laduzinsky Steven Lane James Dalzell Kambiz Dowlatshahi Dwelvin Simmons John P Thropay Harish Ahuja Peter Beitsch Randall W Holt Charles A Lee

PURPOSE This multicenter, retrospective study evaluated treatment and clinical outcomes of patients with early stage breast cancer who received adjuvant high-dose rate (HDR) electronic brachytherapy (EBT) treatment post-lumpectomy using the Axxent(®) EBT system. Dosimetric data from the EBT treatment plans were compared with those based on iridium-192 HDR brachytherapy. MATERIAL AND METHODS M...

2011
Steven P. Berg Joshua L. Rovey

Potential dual-mode monopropellant/electrospray capable binary mixtures of hydroxyl ammonium nitrate with ionic liquid fuels [Bmim][NO3] and [Emim][EtSO4] are synthesized and tested for monopropellant ignition capability in a micro reactor setup. The setup is benchmarked using 30% hydrogen peroxide solution decomposed via silver catalyst. Results show similar trends, but variance in the quantit...

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