Relevant bibliographies by topics / Electron-mediated processes

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  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers

Academic literature on the topic 'Electron-mediated processes'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

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Journal articles on the topic "Electron-mediated processes"

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Zbigniew Grobelny, Andrzej Stolarzewicz, Andrzej Swinarew, Marcin Szczepanski, and Adalbert Maercker. "Electron-Transfer Processes Mediated by Alkalides: A Critical Approach." Mini-Reviews in Organic Chemistry 4, no. 3 (2007): 254–67. http://dx.doi.org/10.2174/157019307781369913.

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Wu, Yundang, Wei Liu, Tongxu Liu, et al. "Sustainable Electron Shuttling Processes Mediated by In Situ- Deposited Phenoxazine." ChemElectroChem 5, no. 16 (2018): 2171–75. http://dx.doi.org/10.1002/celc.201800470.

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Heelis, Paul F., Rosemarie F. Hartman, and Seth D. Rose. "Energy and electron transfer processes in flavoprotein-mediated DNA repair." Journal of Photochemistry and Photobiology A: Chemistry 95, no. 1 (1996): 89–98. http://dx.doi.org/10.1016/1010-6030(95)04229-6.

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Meirovich, Matan M., Oren Bachar, and Omer Yehezkeli. "Artificial, Photoinduced Activation of Nitrogenase Using Directed and Mediated Electron Transfer Processes." Catalysts 10, no. 9 (2020): 979. http://dx.doi.org/10.3390/catal10090979.

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Nitrogenase, a bacteria-based enzyme, is the sole enzyme that is able to generate ammonia by atmospheric nitrogen fixation. Thus, improved understanding of its utilization and developing methods to artificially activate it may contribute to basic research, as well as to the design of future artificial systems. Here, we present methods to artificially activate nitrogenase using photoinduced reactions. Two nitrogenase variants originating from Azotobacter vinelandii were examined using photoactivated CdS nanoparticles (NPs) capped with thioglycolic acid (TGA) or 2-mercaptoethanol (ME) ligands. T
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Lambert, Christoph, Gilbert Nöll, and Jürgen Schelter. "Bridge-mediated hopping or superexchange electron-transfer processes in bis(triarylamine) systems." Nature Materials 1, no. 1 (2002): 69–73. http://dx.doi.org/10.1038/nmat706.

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Calderazzo, Fausto, Guido Pampaloni, Maurizio Lanfranchi, and Giancarlo Pelizzi. "Proton- and carbonyl-mediated electron transfer processes from the hexacarbonylvanadate(−I) anion." Journal of Organometallic Chemistry 296, no. 1-2 (1985): 1–13. http://dx.doi.org/10.1016/0022-328x(85)80335-1.

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Basak, Shyam, Laura Winfrey, Betty A. Kustiana, Rebecca L. Melen, Louis C. Morrill, and Alexander P. Pulis. "Electron deficient borane-mediated hydride abstraction in amines: stoichiometric and catalytic processes." Chemical Society Reviews 50, no. 6 (2021): 3720–37. http://dx.doi.org/10.1039/d0cs00531b.

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Borane mediated hydride abstraction of amines efficiently generates useful iminium salts. This review explores this fascinating reactivity and discusses how the iminium intermediates are utilised in a variety of stoichiometric and catalytic processes.
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Morris, Kristy, Huijun Zhao, and Richard John. "Ferricyanide-Mediated Microbial Reactions for Environmental Monitoring." Australian Journal of Chemistry 58, no. 4 (2005): 237. http://dx.doi.org/10.1071/ch05038.

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The ability of microorganisms to use ferricyanide as an alternative electron acceptor for respiratory processes has been known for nearly 100 years. More recently, the use of ferricyanide-mediated bioreactions for environmental monitoring has received much attention. This paper reviews the recent developments of these mediated microbial processes for rapid biochemical oxygen demand analysis and direct toxicity assessment during the past five years. The ability of eukaryotic microorganisms to use ferricyanide as an alternative electron acceptor for a range of applications is also described.
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Bouwer, Edward J., and Gordon D. Cobb. "Modeling of Biological Processes in the Subsurface." Water Science and Technology 19, no. 5-6 (1987): 769–79. http://dx.doi.org/10.2166/wst.1987.0255.

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Biofilm processes are potentially important for transformations of organic micropollutants in groundwater. The type of electron acceptor used by the microorganisms is an important environmental factor affecting biotransformation. A fundamental model of biofilm kinetics is shown to be capable of simulating microbially-mediated changes in a subsurface system of primary substrates and mixed electron acceptors. The model incorporates external mass transport effects, Monod kinetics with determination of limiting electron donor or acceptor, and competitive and sequential microbial reactions. The sys
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Wang, Xin-Nan, Guo-Xin Sun, Xiao-Ming Li, Thomas A. Clarke, and Yong-Guan Zhu. "Electron shuttle-mediated microbial Fe(III) reduction under alkaline conditions." Journal of Soils and Sediments 18, no. 1 (2017): 159–68. http://dx.doi.org/10.1007/s11368-017-1736-y.

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Dissertations / Theses on the topic "Electron-mediated processes"

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Li, Qiang. "Surface Chemistry of Hexacyclic Aromatic Hydrocarbons on (2x1) and Modified Surfaces of Si(100)." Thesis, University of Waterloo, 2004. http://hdl.handle.net/10012/1263.

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Room-temperature chemisorption of hexacyclic aromatic hydrocarbons on the 2x1, sputtered, oxidized and H-terminated Si(100) surfaces, as well as those upon post treatments of hydrogenation, oxidization and electron irradiation have been investigated by using thermal desorption spectrometry (TDS), Auger electron spectroscopy (AES) and low energy electron diffraction (LEED). This work focuses on the effects of the functional groups (phenyl, methyl, vinyl, heteroatom, and H atom) in the chemisorbed aromatic hydrocarbons (benzene, toluene, xylene isomers, styrene and pyridine) on organic functi
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Nogwanya, Thembalethu. "Feasibility of Nuclear Plasma Interaction studies with the Activation Technique." University of the Western Cape, 2018. http://hdl.handle.net/11394/6440.

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Magister Scientiae - MSc (Physics)<br>Electron-mediated nuclear plasma interactions (NPIs), such as Nuclear Excitation by Electron Capture (NEEC) or Transition (NEET), can have a signi cant impact on nuclear cross sections in High Energy Density Plasmas (HEDPs). HEDP environments are found in nuclear weapons tests, National Ignition Facility (NIF) shots and in the cosmos where nucleosynthesis takes place. This thesis explores the impact of NPIs on highly excited nuclei. This impact is understood to be more intense in highly-excited nuclei states in the quasi-contiuum which is populated by nucl
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Book chapters on the topic "Electron-mediated processes"

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"Bio-Mediated Synthesis of Nanomaterials for Electrochemical Sensor Applications." In Materials Research Foundations. Materials Research Forum LLC, 2021. http://dx.doi.org/10.21741/9781644901571-8.

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The bio-mediated nanomaterials have expected growing responsiveness due to an increasing requirement to develop naturally nonthreatening technologies in nanomaterial synthesis. Biotic ways to prepare nanomaterials through extracts from the plant (includes stems, leaves, flowers, and roots) and microorganisms were recommended as likely replacements for physical and chemical routes due to their solvent medium and environment eco-friendliness and nontoxicity. This chapter focuses on electrocatalyst prepared by various bio-mediated synthetic ways and used as a green and eco-friendly electrocatalyst to recognize extensive chemical and biologically essential molecules with improved selectivity and sensitivity with low detection limit. The bio-mediated nanocomposite formation processes and their unique properties surface functionalization and electron transfer mechanism discussed in connection with the design and fabrication of sensors. As a final point, the encounters and prospects in developing bio-mediated nanomaterials-based electrochemical sensing technology was outlined.
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Adu, Dwomoa. "Minimal-change nephropathy and focal segmental glomerulosclerosis." In Oxford Textbook of Medicine. Oxford University Press, 2010. http://dx.doi.org/10.1093/med/9780199204854.003.210803.

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Minimal-change nephrotic syndrome (MCNS) is an immune-mediated condition, usually of unknown cause, but which can sometimes be associated with Hodgkin’s disease or the use of nonsteroidal anti-inflammatory drugs. On light microscopy the glomeruli appear normal or small, and on electron microscopy there is effacement of epithelial-cell foot processes over the outer surface of the glomerular basement membrane. MCNS is the cause of about 80% of cases of nephrotic syndrome in children and 20% in adults....
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Saleem, Moin, and Lisa Willcocks. "Minimal-change nephropathy and focal segmental glomerulosclerosis." In Oxford Textbook of Medicine, edited by John D. Firth. Oxford University Press, 2020. http://dx.doi.org/10.1093/med/9780198746690.003.0484.

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Minimal-change nephrotic syndrome (MCNS) is an immune-mediated condition, usually of unknown cause. On light microscopy the glomeruli appear normal, and on electron microscopy there is effacement of epithelial cell foot processes over the outer surface of the glomerular basement membrane. MCNS is the cause of about 75% of cases of nephrotic syndrome in children and 17% in adults. Management and prognosis—treatment in adults is with prednisolone at an initial dose of 80 mg/day, then tapering. This leads to complete remission in 90 to 95% of patients, but 50 to 75% of glucocorticoid-responsive adults will have a relapse. Progression to renal failure is not expected and would call the diagnosis of MCNS into question. Focal segmental glomerulosclerosis (FSGS) is not a specific disease entity but a histological lesion, often of unknown aetiology, which is characterized by segmental areas of glomerular sclerosis. It may be (1) primary—either due to genetic mutation, or associated with an unknown circulating protein factor that causes an increase in glomerular permeability; or (2) secondary—the end product of a variety of pathological processes including glomerular hyperfiltration, healed glomerulonephritis, viral (including HIV) infection, or parasitic infection. Management and prognosis—corticosteroid and immunosuppressive therapy should be considered only in patients with primary FSGS and nephrotic syndrome. The steroid regimen is as used for MCNS, but with lesser success. Steroid-resistant cases are treated with ciclosporin (for which there is most published evidence), mycophenolate mofetil, or cyclophosphamide. Prognosis depends on histology and response to treatment.
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Taber, Douglass. "Transition Metal-Mediated Construction of Carbocycles: Dimethyl Gloiosiphone A (Takahashi), Pasteurestin A (Mulzer), and Pentalenene (Fox)." In Organic Synthesis. Oxford University Press, 2011. http://dx.doi.org/10.1093/oso/9780199764549.003.0074.

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There continue to be new developments in transition metal- and lanthanide-mediated construction of carbocycles. Although a great deal has been published on the asymmetric cyclopropanation of styrene, relatively little had been reported for other classes of alkenes. Tae-Jeong Kim of Kyungpook National University has devised (Tetrahedron Lett. 2007, 48, 8014) a Ru catalyst for the cyclopropanation of simple α-olefins such as 1. X. Peter Zhang of the University of South Florida has developed (J. Am.Chem. Soc. 2007, 129, 12074) a Co catalyst for the cyclopropanation of alkenes such as 5 having electron-withdrawing groups. Alexandre Alexakis of the Université de Genève has reported(Angew. Chem. Int. Ed. 2007, 46, 7462) simple monophosphine ligands that enabled enantioselective conjugate addition to prochiral enones, even difficult substrates such as 8. Seunghoon Shin of Hanyang University has found (Organic Lett. 2007, 9, 3539) an Au catalyst that effected the diastereoselective cyclization of 10 to the cyclohexene 11, and Radomir N. Saicic of the University of Belgrade has carried out (Organic Lett. 2007, 9, 5063), via transient enamine formation, the diastereoselective cyclization of 12 to the cyclohexane 13. Alois Fürstner of the Max-Planck- Institut, Mülheim has devised (J. Am. Chem. Soc. 2007, 129, 14836) a Rh catalyst that cyclized the aldehyde 14 to the cycloheptenone 15. Some of the most exciting investigations reported in recent months have been directed toward the direct diastereo- and enantioselective preparation of polycarbocyclic products. Rai-Shung Liu of National Tsing-Hua University has extended (J. Org. Chem. 2007, 72, 567) the intramolecular Pauson-Khand cyclization to the epoxy enyne 16, leading to the 5-5 product 17. Michel R. Gagné of the University of North Carolina has devised (J. Am. Chem. Soc. 2007, 129, 11880) a Pt catalyst that smoothly cyclized the polyene 18 to the 6-6 product 19. Yoshihiro Sato of Hokkaido University and Miwako Mori of the Health Science University of Hokkaido have described (J. Am. Chem. Soc. 2007, 129, 7730) a Ru catalyst for the cyclization of 20 to the 5-6-5 product 21. Each of these processes proceeded with high diastereocontrol.
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K. Patel, Bhisma, Tipu Alam, and Amitava Rakshit. "Construction of C-N Bond Via Visible-Light-Mediated Difunctionalization of Alkenes." In Alkenes - Recent Advances, New Perspectives and Applications [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.98949.

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In the last few years, the photo-redox process via single-electron transfer (SET) has received substantial attention for the synthesis of targeted organic compounds due to its environmental friendliness and sustainability. Of late visible-light-mediated difunctionalization of alkenes has gained much attention because of its step economy, which allows the consecutive installation of two functional groups across the C=C bond in a single operation. The construction of N-containing compounds has always been important in organic synthesis. Molecules containing C-N bonds are found in many building blocks and are important precursors to other functional groups. Meanwhile, C-N bond formation via the addition of the C=C double bond is gaining prominence. Therefore, considering the influence and synthetic potential of the C-N bond, here we provide a summary of the state of the art on visible-light-driven difunctionalizations of alkene. We hope that the construction of the C-N bond via visible-light-mediated difunctionalization of alkenes will be useful for medicinal and synthetic organic chemists and will inspire further reaction development in this interesting area.
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Maestri, G., and A. Serafino. "1.14 Palladium(I)-Mediated Reactions." In Free Radicals: Fundamentals and Applications in Organic Synthesis 1. Georg Thieme Verlag KG, 2021. http://dx.doi.org/10.1055/sos-sd-234-00313.

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AbstractSeveral elegant reactivities can be observed in reactions involving palladium(I) species, allowing access to molecular architectures that are often beyond the capabilities of popular diamagnetic palladium complexes. This review presents three main axes of research in this context, which have mostly emerged in the last decade. Reactions promoted by visible light enable synthetic methods that are unusual in their mild experimental conditions coupled with remarkably broad functional group tolerance. The use of discrete palladium(I) dimers as precatalysts allows one to perform a wide set of cross-coupling protocols, such as Kumada and Negishi reactions, and chalcogenation reactions, with a surgical precision on the carbon—halogen bond that is initially activated. The generation of alkyl radicals and palladium(I) species through a thermal strategy proves useful for the elaboration of substrates with several polyfluorinated fragments, which are otherwise elusive coupling partners for more common two-electron processes.
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Taber, Douglass F. "Substituted Benzenes: The Gu Synthesis of Rhazinal." In Organic Synthesis. Oxford University Press, 2015. http://dx.doi.org/10.1093/oso/9780190200794.003.0065.

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Sisir K. Mandal of Asian Paints R&amp;T Centre, Mumbai used (Tetrahedron Lett. 2013, 54, 530) a Ru catalyst to couple 2 with an electron-rich arene 1 to give 3. Jun-ichi Yoshida of Kyoto University (J. Am. Chem. Soc. 2013, 135, 5000) and John F. Hartwig of the University of California, Berkeley (J. Am. Chem. Soc. 2013, 135, 8480) also reported direct amination protocols. Tommaso Marcelli of the Politecnico di Milano and Michael J. Ingleson of the University of Manchester effected (J. Am. Chem. Soc. 2013, 135, 474) the electrophilic borylation of the aniline 4 to give 5. The regioselectivity of Ir-catalyzed borylation (J. Am. Chem. Soc. 2013, 135, 7572; Org. Lett. 2013, 15, 140) is complementary to the electrophilic process. Professor Hartwig carried (Angew. Chem. Int. Ed. 2013, 52, 933) the borylated product from 6 onto Ni-mediated coupling to give the alkylated product 7. Weiping Su of the Fujian Institute of Research on the Structure of Matter devised (Org. Lett. 2013, 15, 1718) an intriguing Pd-mediated oxidative coupling of nitroethane 9 with 8 to give 10. The coupling is apparently not proceeding via nitroethylene. Peiming Gu of Ningxia University developed (Org. Lett. 2013, 15, 1124) an azide-based cleavage that converted the aldehyde 11 into the formamide 13. Zhong-Quan Liu of Lanzhou University showed (Tetrahedron Lett. 2013, 54, 3079) that an aromatic carboxylic acid 14 could be oxidatively decarboxylated to the chloride 15. Gérard Cahiez of the Université Paris 13 found (Adv. Synth. Catal. 2013, 355, 790) mild Cu-catalyzed conditions for the reductive decarboxylation of aromatic carboxylic acids, and Debabrata Maiti of the Indian Institute of Technology, Mumbai found (Chem. Commun. 2013, 49, 252) Pd-mediated conditions for the dehydroxymethylation of benzyl alcohols (neither illustrated). Pravin R. Likhar of the Indian Institute of Chemical Technology prepared (Adv. Synth. Catal. 2013, 355, 751) a Cu catalyst that effected Castro-Stephens coupling of 16 with 17 at room temperature. Arturo Orellana of York University (Chem. Commun. 2013, 49, 5420) and Patrick J. Walsh of the University of Pennsylvania (Org. Lett. 2013, 15, 2298) showed that a cyclopropanol 20 can couple with an aryl halide 19 to give 21.
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Conference papers on the topic "Electron-mediated processes"

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Jiao, Jian, and Zhixiong Guo. "Analysis of USP Laser Induced Ablation Threshold in Transparent Aqueous Tissue." In ASME 2012 Third International Conference on Micro/Nanoscale Heat and Mass Transfer. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/mnhmt2012-75175.

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The ultrashort pulsed (USP) laser induced plasma-mediated ablation in transparent media is modeled and studied in this work. We propose that a certain number of free electrons are required to trigger the avalanche ionization for the first time. Based on this assumption, the ablation process is postulated as two separate processes — the multiphoton and avalanche ionizations. For USP laser induced ablation in the transparent corneal epithelium at 800 nm, the critical seed free-electron density and the time to initialize the avalanche ionization for pulse widths from picoseconds down to the femto
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Iskandar, Maria E., Jaclyn Y. Lock, Arash Aslani, and Huinan Liu. "Controlling the Biodegradation of Magnesium Implants Through Nanostructured Coatings." In ASME 2011 International Mechanical Engineering Congress and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/imece2011-65901.

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Magnesium (Mg) alloys, a novel class of degradable, metallic biomaterials, have attracted growing interest as a promising alternative for medical implant and device applications due to their advantageous mechanical and biological properties. Moreover, magnesium is biodegradable in the physiological environments. The major obstacle for Mg to be used as medical implants is its rapid degradation in physiological fluids. Therefore, the present key challenge lies in controlling Mg degradation rate in the physiological environment. The objective of this study is to develop a nanostructured-hydroxyap
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Nawroth, Peter P., Jerry Brett, Susan Steinberg, Charles T. Esmon, and David M. Stern. "ENDOTHELIUM AND PROTEIN S: SYNTHESIS, RELEASE AND REGULATION OF ANTICOAGULANT ACTIVITY." In XIth International Congress on Thrombosis and Haemostasis. Schattauer GmbH, 1987. http://dx.doi.org/10.1055/s-0038-1642962.

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The protein C-protein S pathway is closely linked to the vessel wall. In terms of protein C, endothelium has been shown to provide the receptor thrombomodulin, which promotes thrombin-mediated formation of activated protein C. Optimal anticoagulant function of activated protein C requires protein S and a cellular surface. Recent studies have indicated that endothelium can facilitate assembly of the activated protein C-protein S complex and that bovine endothelium expresses specific binding site(s) for protein S which promote its anticoagulant function. Expression of protein S binding sites is
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Kozlowska, Anna-Maria, Steve R. Langford, Manjit S. Kahlon, and Haydn G. Williams. "Enhanced Bioremediation as a Cost Effective Approach Following Thermally Enhanced Soil Vapour Extraction for Sites Requiring Remediation of Chlorinated Solvents." In ASME 2009 12th International Conference on Environmental Remediation and Radioactive Waste Management. ASMEDC, 2009. http://dx.doi.org/10.1115/icem2009-16296.

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Thermally enhanced bioremediation can be a more cost-effective alternative to full scale in-situ thermal treatment especially for sites contaminated with chlorinated solvents, where reductive dechlorination is or might be a dominant biological step. The effect of Thermally Enhanced Soil Vapour Extraction (TESVE) on indigenous microbial communities and the potential for subsequent biological polishing of chlorinated solvents was investigated in field trials at the Western Storage Area (WSA) – RSRL (formerly United Kingdom Atomic Energy Authority - UKAEA) Oxfordshire, UK. The WSA site had been c
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