Results 221 to 230 of about 154,469 (260)

Design of redox systems for the selective transport of electrons across liquid membranes: nickel(II,III) tetraaza macrocyclic complexes

Journal of the American Chemical Society, 1989
The complexes NiLX 2 (L=N-cetylcyclam; X=Cl, ClO 4 ) have been synthesized to be used as carriers for the transport of electrons across a CH 2 Cl 2 bulk liquid membrane, through the Ni II /Ni III redox change. Two-phase (water/dichloromethane) experiments have shown that aqueous peroxydisulfate ion is able to oxidize Ni II LCl 2 , but not Ni II L ...
G. De Santis, M. Di Casa, MARIANI, MARIO, B. Seghi, L. Fabbrizzi   +4 more
openaire   +3 more sources

Aging Decreases Electron Transport Complex III Activity in Heart Interfibrillar Mitochondria by Alteration of the Cytochrome c Binding Site

Journal of Molecular and Cellular Cardiology, 2001
Aging alters cardiac physiology and structure and enhances damage during ischemia and reperfusion. Aging selectively decreases the rate of oxidative phosphorylation in the interfibrillar population of cardiac mitochondria (IFM) located among the myofibers, whereas subsarcolemmal mitochondria (SSM) located beneath the plasma membrane remain unaffected ...
E J, Lesnefsky, T I, Gudz, S, Moghaddas, C T, Migita, M, Ikeda-Saito, P J, Turkaly, C L, Hoppel   +6 more
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Kinetics of Electron Transport in Complex III of Plant Mitochondria During Ageing in vitro

1987
During storage at 0°C, isolated organelles such as mitochondria undergo progressive degradations. The rates of substrate oxidations or the resistance toward inhibitors are changed. At the end of the process, the membrane components (proteins, lipids) are destroyed. These phenomena are strongly increased by aging of the organelles in vitro at 25°C1,2.
Anne-Catherine Fricaud, Jacques Dupont
openaire   +1 more source

Studies of the Electron Transport Chain of the Euryarcheon Halobacterium salinarum: Indications for a Type II NADH Dehydrogenase and a Complex III Analog

Journal of Bioenergetics and Biomembranes, 1998
The components involved in the respiratory system of the euryarcheon Halobacterium salinarum were investigated by spectroscopic and polarographic techniques. Previous results about the cytochrome composition could be verified. However, under low oxygen tension, the expression of a d-type cytochrome was detected.
K, Sreeramulu, C L, Schmidt, G, Schäfer, S, Anemüller   +3 more
openaire   +2 more sources

Electron transport dynamics in thin polymer films containing tris(2,2′-bipyridine)osmium(III/II) complexes

Journal of Electroanalytical Chemistry and Interfacial Electrochemistry, 1987
Abstract Rotating carbon disk electrodes were modified by a random copolymer (PSS-PVP) of styrenesulfonate and 4-vinylpyridine. The polymer was spincoated onto the electrodes, crosslinked by reaction with 1,2-dibromoethane, then loaded with Os(bpy)2+3 by ion exchange.
Xiaoming Chen, Peixin He, Larry R. Faulkner   +2 more
openaire   +1 more source

Highly Efficient and Stable Green Phosphorescent Light‐Emitting Diodes Based on Solution‐Processable Ir(III) Complexes with Electron‐Transporting Ancillary Ligands

Advanced Optical Materials, 2023
AbstractTwo green heteroleptic Ir(III) complexes are reported, namely, bis[5‐(2‐ethylhexyl)‐8‐trifluoromethyl‐5H‐benzo[c][1,5]‐naphthyridin‐6‐one](2‐(5‐phenyl‐1,3,4‐oxadiazol‐2‐yl)phenolate)iridium (III) (Ir(CF3BNO)2‐pop) and bis[5‐(2‐ethylhexyl)‐5H‐benzo[c][1,5]naphthyridin‐6‐one](2‐(5‐phenyl‐1,3,4‐oxadiazol‐2‐yl)phenolate)iridium (III) (Ir(BNO)2‐pop)
Ho‐Yeol Park, Shahid Ameen, Raja Kumaresan, Jieun Lee, Jeonghyeon Park, Donghyun Song, Jaemin Lee, Yuchan Heo, BongSoo Kim, Sung‐Ho Jin   +9 more
openaire   +2 more sources

tris‐Heteroleptic Cyclometalated Iridium(III) Complexes with Ambipolar or Electron Injection/Transport Features for Highly Efficient Electrophosphorescent Devices

Chemistry – An Asian Journal, 2014
AbstractA series of tris‐heteroleptic phosphorescent cyclometalated IrIII complexes with two different cyclometalating ligands and one ancillary ligand was synthesized. Through manipulation of the electronic features of individual cyclometalating ligands, not only the emission color and electrochemical properties of these IrIII complexes can be tuned ...
Xianbin, Xu, Xiaolong, Yang, Yong, Wu, Guijiang, Zhou, Chao, Wu, Wai-Yeung, Wong   +5 more
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Synthesis, photoluminescent and electroluminescent properties of a novel europium(III) complex involving both hole- and electron-transporting functional groups

Synthetic Metals, 2009
Abstract A novel europium(III) complex involving a carbazole fragment as hole-transporting group and an oxadiazole fragment as electron-transporting group was synthesized and used as red light-emitting material in organic light-emitting diodes (OLEDs). The complex is amorphous, and exhibits high glass transition temperature ( T g  = 157 °C) and high
Huaijun Tang, Hao Tang, Zhiguo Zhang, Jibing Yuan, Changjie Cong, Keli Zhang   +5 more
openaire   +1 more source

Dietary avocado oil supplementation attenuates the alterations induced by type I diabetes and oxidative stress in electron transfer at the complex II-complex III segment of the electron transport chain in rat kidney mitochondria

Journal of Bioenergetics and Biomembranes, 2013
Impaired complex III activity and reactive oxygen species (ROS) generation in mitochondria have been identified as key events leading to renal damage during diabetes. Due to its high content of oleic acid and antioxidants, we aimed to test whether avocado oil may attenuate the alterations in electron transfer at complex III induced by diabetes by a ...
Omar, Ortiz-Avila, Carlos Alberto, Sámano-García, Elizabeth, Calderón-Cortés, Ismael H, Pérez-Hernández, Ricardo, Mejía-Zepeda, Alain R, Rodríguez-Orozco, Alfredo, Saavedra-Molina, Christian, Cortés-Rojo   +7 more
openaire   +2 more sources

Photoresponsive Dithienylethene-Containing Tris(8-hydroxyquinolinato)aluminum(III) Complexes with Photocontrollable Electron-Transporting Properties for Solution-Processable Optical and Organic Resistive Memory Devices

Journal of the American Chemical Society, 2020
The rational design of a new class of photoresponsive tris(8-hydroxyquinolinato)aluminum(III) (Alq3) complexes has been developed. By incorporating the photochromic dithienylethene units with different peripheral heterocycles into the Alq3 framework, the photochromic properties as well as photoswitching efficiency can be readily modulated, through ...
Cheok-Lam Wong, Maggie Ng, Eugene Yau-Hin Hong, Yi-Chun Wong, Mei-Yee Chan, Vivian Wing-Wah Yam   +5 more
openaire   +2 more sources