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Journal articles on the topic 'Catalyse triple'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 May 2024

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1

Straube, Axel, Peter Coburger, Luis Dütsch, and Evamarie Hey-Hawkins. "Triple the fun: tris(ferrocenyl)arene-based gold(i) complexes for redox-switchable catalysis." Chemical Science 11, no. 39 (2020): 10657–68. http://dx.doi.org/10.1039/d0sc03604h.

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Trinuclear gold(i) complexes of C<sub>3</sub>-symmetric tris(ferrocenyl)arene-based tris-phosphanes with four accessible oxidation states catalyse the ring-closing isomerisation of N-(2-propyn-1-yl)benzamide with different rates depending on their redox state.

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2

Hsieh, Yves, and Philip Harris. "Xylans of Red and Green Algae: What Is Known about Their Structures and How They Are Synthesised?" Polymers 11, no. 2 (2019): 354. http://dx.doi.org/10.3390/polym11020354.

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Xylans with a variety of structures have been characterised in green algae, including chlorophytes (Chlorophyta) and charophytes (in the Streptophyta), and red algae (Rhodophyta). Substituted 1,4-β-d-xylans, similar to those in land plants (embryophytes), occur in the cell wall matrix of advanced orders of charophyte green algae. Small proportions of 1,4-β-d-xylans have also been found in the cell walls of some chlorophyte green algae and red algae but have not been well characterised. 1,3-β-d-Xylans occur as triple helices in microfibrils in the cell walls of chlorophyte algae in the order Br

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3

Mohamed, Shams El Din, and Hussein A. Mohamed. "Effect of Foliar Application with Sulfur Element and Amino Acid Selenocysteine on Maize (Zea mays L.) Exposed to Stress with Hydrogen Peroxide." IOP Conference Series: Earth and Environmental Science 1262, no. 8 (2023): 082009. http://dx.doi.org/10.1088/1755-1315/1262/8/082009.

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Abstract A field experiment was conducted during the fall season (2022) in the fields of the College of Agriculture - University of Diyala in order to demonstrate the effect of foliar Application with sulfur element and the amino acid Selenocysteine on maize (Zea mays.L) subjected to hydrogen peroxide stress and its effect on plant height, leaf area, proline and catalase enzyme, the experiment was carried out according to the randomized complete block design (RCBD), a regular global experiment with three replications, and the experimental parameters included the following: Three levels of spra

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4

Sanders, Akeisha N., Lori F. Wright, and Martin S. Pavelka. "Genetic characterization of mycobacterial l,d-transpeptidases." Microbiology 160, no. 8 (2014): 1795–806. http://dx.doi.org/10.1099/mic.0.078980-0.

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l,d-Transpeptidases (Ldts) catalyse the formation of 3–3 cross-links in peptidoglycans (PGs); however, the role of these enzymes in cell envelope physiology is not well understood. Mycobacterial PG contains a higher percentage of 3–3 cross-links (~30–80 %) than the PG in most other bacteria, suggesting that they are particularly important to mycobacterial cell wall biology. The genomes of Mycobacterium tuberculosis and Mycobacterium smegmatis encode multiple Ldt genes, but it is not clear if they are redundant. We compared the sequences of the Ldt proteins from 18 mycobacterial genomes and fou

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5

Castellano, Elena, Aithne Atkinson, Kevin O’Neill, and Nelofer Syed. "The Collagen-Prolyl Hydroxylases promote proliferation and invasion in GBM." Neuro-Oncology 21, Supplement_4 (2019): iv12—iv13. http://dx.doi.org/10.1093/neuonc/noz167.051.

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Abstract Glioblastoma Multiforme (GBM) is the most aggressive form of brain tumour, with a median survival time of just 14 months. Current standard therapy includes surgical excision, followed by chemotherapy and radiotherapy, however complete surgical excision is not usually possible due to the diffuse and infiltrative nature of the disease. To combat this, therapies inhibiting the invasion of leader migratory cells are an attractive area of research. The collagen prolyl-4 hydroxylases (C-P4Hs) are a family of proteins which catalyse the hydroxylation of proline residues on pre-pro-collagen,

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6

Sherbrook, Evan M., Hoimin Jung, Dasol Cho, My-Hyun Baik, and Tehshik P. Yoon. "Brønsted acid catalysis of photosensitized cycloadditions." Chemical Science 11, no. 3 (2020): 856–61. http://dx.doi.org/10.1039/c9sc04822g.

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7

Kawasaki, Laura, and Jesús Aguirre. "Multiple Catalase Genes Are Differentially Regulated in Aspergillus nidulans." Journal of Bacteriology 183, no. 4 (2001): 1434–40. http://dx.doi.org/10.1128/jb.183.4.1434-1440.2001.

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ABSTRACT Detoxification of hydrogen peroxide is a fundamental aspect of the cellular antioxidant responses in which catalases play a major role. Two differentially regulated catalase genes, catA andcatB, have been studied in Aspergillus nidulans. Here we have characterized a third catalase gene, designated catC, which predicts a 475-amino-acid polypeptide containing a peroxisome-targeting signal. With a molecular mass of 54 kDa, CatC shows high similarity to other small-subunit monofunctional catalases and is most closely related to catalases from other fungi, Archaea, and animals. In contrast

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Robbertse, Barbara, O. C. Yoder, Anita Nguyen, Conrad L. Schoch, and B. Gillian Turgeon. "Deletion of all Cochliobolus heterostrophus Monofunctional Catalase-Encoding Genes Reveals a Role for One in Sensitivity to Oxidative Stress but None with a Role in Virulence." Molecular Plant-Microbe Interactions® 16, no. 11 (2003): 1013–21. http://dx.doi.org/10.1094/mpmi.2003.16.11.1013.

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The genome of the maize pathogen Cochliobolus heterostrophus encodes three unlinked monofunctional catalase-encoding (CAT) genes that singly or in combination could offer protection against the harmful effects of oxidative stress. Phylogenetic analysis placed the CAT2 and CAT3 proteins in a cluster with large subunit catalases (CAT3 has a secretory signal sequence and was grouped with known secreted catalases), whereas CAT1 clustered with small subunit catalases. Single, double, and triple cat mutants were created and screened for sensitivity to hydrogen peroxide and altered virulence on maize

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9

Guo, Ming, Anna Block, Crystal D. Bryan, Donald F. Becker, and James R. Alfano. "Pseudomonas syringae Catalases Are Collectively Required for Plant Pathogenesis." Journal of Bacteriology 194, no. 18 (2012): 5054–64. http://dx.doi.org/10.1128/jb.00999-12.

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ABSTRACTThe bacterial pathogenPseudomonas syringaepv. tomato DC3000 must detoxify plant-produced hydrogen peroxide (H2O2) in order to survive in its host plant. Candidate enzymes for this detoxification include the monofunctional catalases KatB and KatE and the bifunctional catalase-peroxidase KatG of DC3000. This study shows that KatG is the major housekeeping catalase of DC3000 and provides protection against menadione-generated endogenous H2O2. In contrast, KatB rapidly and substantially accumulates in response to exogenous H2O2. Furthermore, KatB and KatG have nonredundant roles in detoxif

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10

Shubina, Tatyana E., and Timothy Clark. "Catalysis of the Quadricyclane to Norbornadiene Rearrangement by SnCl2 and CuSO4." Zeitschrift für Naturforschung B 65, no. 3 (2010): 347—r369. http://dx.doi.org/10.1515/znb-2010-0319.

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Ab initio and density-functional theory (DFT) calculations have been used to investigate the model rearrangements of quadricyclane to norbornadiene catalysed by single CuSO4 and SnCl2 molecules. The isolated reactions with the two molecular catalysts proceed via electron-transfer catalysis in which the hydrocarbon is oxidised, in contrast to systems investigated previously in which the substrate was reduced. The even-electron SnCl2-catalysed reaction shows singlet-triplet two-state reactivity. Solvation by a single methanol molecule changes the mechanism of the rearrangement to a classical Lew

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11

Matveishina, Elena, Ivan Antonov, and Yulia A. Medvedeva. "Practical Guidance in Genome-Wide RNA:DNA Triple Helix Prediction." International Journal of Molecular Sciences 21, no. 3 (2020): 830. http://dx.doi.org/10.3390/ijms21030830.

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Long noncoding RNAs (lncRNAs) play a key role in many cellular processes including chromatin regulation. To modify chromatin, lncRNAs often interact with DNA in a sequence-specific manner forming RNA:DNA triple helices. Computational tools for triple helix search do not always provide genome-wide predictions of sufficient quality. Here, we used four human lncRNAs (MEG3, DACOR1, TERC and HOTAIR) and their experimentally determined binding regions for evaluating triplex parameters that provide the highest prediction accuracy. Additionally, we combined triplex prediction with the lncRNA secondary

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12

Hudson, Robert HE, and Filip Wojciechowski. "The detrimental effect of orotic acid substitution in the peptide nucleic acid strand on the stability of PNA2:NA triple helices." Canadian Journal of Chemistry 83, no. 10 (2005): 1731–40. http://dx.doi.org/10.1139/v05-180.

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We have investigated the incorporation of C6 derivatives of uracil into polypyrimidine peptide nucleic acid oligomers. Starting with uracil-6-carboxylic acid (orotic acid), a peptide nucleic acid monomer compatible with Fmoc-based synthesis was prepared. This monomer then served as a convertible nucleobase whereupon treatment of the resin-bound methyl orotate containing hexamers with hydroxide or amines cleanly converted the ester to an orotic acid or orotamide-containing peptide nucleic acid. Peptide nucleic acid hexamers containing the C6-modified nucleobase hybridized to both poly(riboadeny

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13

Grishin, Evgeni, and Hagai B. Perets. "Chaotic dynamics of wide triples induced by galactic tides: a novel channel for producing compact binaries, mergers, and collisions." Monthly Notices of the Royal Astronomical Society 512, no. 4 (2022): 4993–5009. http://dx.doi.org/10.1093/mnras/stac706.

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ABSTRACT Recent surveys show that wide (&gt;104 AU) binaries and triples are abundant in the field. We study the long-term evolution of wide hierarchical triple systems and the role played by the Galactic tidal (GT) field. We find that when the time-scales of the secular von–Ziepel–Lidov–Kozai and the GT oscillations are comparable, triple evolution becomes chaotic which leads to extreme eccentricities. Consequently, the close pericentre approaches of the inner-binary components lead to strong interactions, mergers, and collisions. We use a novel secular evolution code to quantify the key

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14

Uhlich, Gaylen A. "KatP contributes to OxyR-regulated hydrogen peroxide resistance in Escherichia coli serotype O157 : H7." Microbiology 155, no. 11 (2009): 3589–98. http://dx.doi.org/10.1099/mic.0.031435-0.

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Escherichia coli K-12 defends itself against peroxide-mediated oxidative damage using two catalases, KatG and KatE, and the peroxiredoxin, alkyl hydroperoxide reductase, encoded by ahpC. In E. coli O157 : H7 strain ATCC 43895 (EDL933), plasmid pO157 carries an additional catalase-peroxidase gene, katP. KatP has been shown to be a functional catalase-peroxidase. However, deletion of pO157 does not alter the peroxide resistance of strain EDL933, leaving the physiological role of katP unclear. To examine the individual roles of peroxide-resistance genes in E. coli O157 : H7, mutant strains of ATC

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15

Nagy, Krisztina S., Krisztina Toth, Eva Pallinger, et al. "Folate-Targeted Monodisperse PEG-Based Conjugates Made by Chemo-Enzymatic Methods for Cancer Diagnosis and Treatment." International Journal of Molecular Sciences 22, no. 19 (2021): 10347. http://dx.doi.org/10.3390/ijms221910347.

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This paper focuses on preliminary in vitro and in vivo testing of new bivalent folate-targeted PEGylated doxorubicin (DOX) made by modular chemo-enzymatic processes (FA2-dPEG-DOX2). A unique feature is the use of monodisperse PEG (dPEG). The modular approach with enzyme catalysis ensures exclusive γ-conjugation of folic acid, full conversion and selectivity, and no metal catalyst residues. Flow cytometry analysis showed that at 10 µM concentration, both free DOX and FA2-dPEG-DOX2 would be taken up by 99.9% of triple-negative breast cancer cells in 2 h. Intratumoral injection to mice seemed to

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16

Matienko, Ludmila, Larisa Mosolova, Vladimir Binyukov, and Gennady Zaikov. "Catalytic Activity of Binary and Triple Systems Based on Redox Inactive Metal Compound, LiSt and Additives of Monodentate Ligands-Modifiers: DMF, HMPA and PhOH, in Selective Ethylbenzene Oxidation with Dioxygen." Chemistry & Chemical Technology 10, no. 3 (2016): 259–70. http://dx.doi.org/10.23939/chcht10.03.259.

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Mechanism of catalysis with binary and triple catalytic systems based on redox inactive metal (lithium) compound {LiSt+L2} and {LiSt+L2+PhOH} (L2=DMF or HMPA), in the selective ethylbenzene oxidation by dioxygen into -phenylethyl hydroperoxide is researched. The results are compared with catalysis by nickel-lithium triple system {NiII(acac)2+LiSt+PhOH} in selective ethylbenzene oxidation to PEH. The role of H-bonding in mechanism of catalysis is discussed. The possibility of the stable supramolecular nanostructures formation on the basis of triple systems, {LiSt+L2+PhOH}, due to intermolecula

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17

Gordon, Christopher P., and Christophe Copéret. "Probing the Electronic Structure of Spectator Oxo Ligands by 17O NMR Spectroscopy." CHIMIA International Journal for Chemistry 74, no. 4 (2020): 225–31. http://dx.doi.org/10.2533/chimia.2020.225.

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Spectator oxo ligands are ubiquitous in catalysis, in particular in olefin epoxidation and olefin metathesis. Here we use computationally derived 17O NMR parameters to probe the electronic structure of spectator oxo ligands in these two reactions. We show that 17O NMR parameters allow to distinguish between doubly-bonded and triply-bonded oxo ligands, giving detailed insights into the frontier molecular orbitals involved in the metaloxo bonds along the reaction pathway. On the one hand, our study shows that in olefin epoxidation catalysed by methyltrioxorhenium (MTO), the oxo ligand significan

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18

Hubert, A. J., and A. J. Anciaux. "Base-Catalysed Prototropic Isomerization IV. Isomerization of Conjugated Diynes on a Basic Catalyst. The Mechanism of the Base-Catalysed Isomerization of Triple-Bonds." Bulletin des Sociétés Chimiques Belges 77, no. 9-10 (2010): 513–20. http://dx.doi.org/10.1002/bscb.19680770906.

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19

Lorenz, Oliver, Alexander Kühne, Martin Rudolph, et al. "Role of Reaction Intermediate Diffusion on the Performance of Platinum Electrodes in Solid Acid Fuel Cells." Catalysts 11, no. 9 (2021): 1065. http://dx.doi.org/10.3390/catal11091065.

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Understanding the reaction pathways for the hydrogen oxidation reaction (HOR) and the oxygen reduction reaction (ORR) is the key to design electrodes for solid acid fuel cells (SAFCs). In general, electrochemical reactions of a fuel cell are considered to occur at the triple-phase boundary where an electrocatalyst, electrolyte and gas phase are in contact. In this concept, diffusion processes of reaction intermediates from the catalyst to the electrolyte remain unconsidered. Here, we unravel the reaction pathways for open-structured Pt electrodes with various electrode thicknesses from 15 to 2

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20

Ye, Miao, Long Rong, Xu Ma, and Weiwei Yang. "Numerical Optimization of Triple-Phase Components in Order-Structured Cathode Catalyst Layer of a Proton Exchange Membrane Fuel Cell." Energies 16, no. 4 (2023): 1623. http://dx.doi.org/10.3390/en16041623.

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Proton exchange membrane fuel cell (PEMFC) is generally regarded as a promising energy conversion device due to its low noise, high efficiency, low pollution, and quick startup. The design of the catalyst layer structure is crucial in boosting cell performance. The traditional catalyst layer has high oxygen transmission resistance, low utilization rate of Pt particles and high production cost. In this study, we offer a sub-model for an order-structured cathode catalyst layer coupled to a three-dimensional (3D) two-phase macroscopic PEMFC model. In the sub-model of the cathode catalyst layer, i

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21

Liu, Shaoqing, Ehsan Shahini, Minrui Gao, et al. "Tailoring a Three-Phase Microenvironment for High-Performance CO₂ Electroreduction." ECS Meeting Abstracts MA2022-01, no. 39 (2022): 1770. http://dx.doi.org/10.1149/ma2022-01391770mtgabs.

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Modern industrialization is accompanied with the extensive usage of fossil fuels for energy demands and consequently, an excessive emission of CO2 into the atmosphere. To combat the injurious greenhouse effects, the CO2 electroreduction (CER) to feedstocks and fuels becomes an appealing approach to reducing CO2 emission and simultaneously producing useful products. It is generally recognized that the solid-catalyst/liquid-electrolyte/gaseous-CO2 triple-phase boundary is the key microstructure feature of CER, where CO2 molecules react with protons (H+) and e− and are reduced. Besides the intrin

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22

Barabé, Francis, Patrick Levesque, Boubacar Sow, Gabriel Bellavance, Geneviève Bétournay, and Louis Barriault. "Gold(I)-catalyzed formation of bridged and fused carbocycles." Pure and Applied Chemistry 85, no. 6 (2013): 1161–73. http://dx.doi.org/10.1351/pac-con-13-01-02.

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For many years, despite a rich coordination chemistry, gold (Au) was judged as being catalytically inactive for the formation of carbon–carbon bonds. In mid-1970, few reports demonstrated that Au salts could be very useful reagents to catalyze organic transformations. In recent years, homogeneous catalysis by Au has received considerable attention by the scientific community. It was shown that Au(I) or (III) catalysts are specific and more reactive than most of the other soft Lewis acids such as Hg(II), Cu(II), Pt(II), and Pd(II). Taking advantage of the affinity of cationic phosphine Au compl

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23

Jin, Ruiwen, Yiyong Chen, Wangsheng Liu, et al. "Merging photoredox catalysis with Lewis acid catalysis: activation of carbon–carbon triple bonds." Chemical Communications 52, no. 64 (2016): 9909–12. http://dx.doi.org/10.1039/c6cc03725a.

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Mei, Qingqing, Huizhen Liu, Minqiang Hou, Hangyu Liu та Buxing Han. "Selective hydration of asymmetric internal aryl alkynes without directing groups to α-aryl ketones over Cu-based catalyst". New Journal of Chemistry 41, № 14 (2017): 6290–95. http://dx.doi.org/10.1039/c7nj00486a.

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25

Brückner, Tobias, Rian D. Dewhurst, Theresa Dellermann, Marcel Müller, and Holger Braunschweig. "Mild synthesis of diboryldiborenes by diboration of B–B triple bonds." Chemical Science 10, no. 31 (2019): 7375–78. http://dx.doi.org/10.1039/c9sc02544h.

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26

Wu, Jian, Gang-Gang Chang, You-Qing Peng, et al. "Spatial acid–base–Pd triple-sites of a hierarchical core–shell structure for three-step tandem reaction." Chemical Communications 56, no. 46 (2020): 6297–300. http://dx.doi.org/10.1039/d0cc01701a.

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27

Yuan, Meng, Haodong Shi, Cong Dong, et al. "2D Cu₂₋ _x Se@graphene multifunctional interlayer boosting polysulfide rapid conversion and uniform Li₂S nucleation for high performance Li–S batteries." 2D Materials 9, no. 2 (2022): 025028. http://dx.doi.org/10.1088/2053-1583/ac5ec6.

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Abstract Some vital challenges are main obstacles for further development of lithium–sulfur (Li–S) batteries such as low capacity and poor cycle stability resulted from polysulfide shuttling behavior, the physical/chemical entrapment is regarded as an effective method to inhibit and catalyze polysulfides. Herein we design a cross-linked framework of reduced graphene oxide anchored with Cu2−x Se nanoparticles (Cu2−x Se@rGO) by building an electrolyte/Cu2−x Se/graphene triple-phase interface to be a high-efficiency electrocatalyst for Li–S batteries. Importantly, this three-dimensional conductiv

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28

Okazaki, Moe, and Junichiro Otomo. "Iron-Based Electrode Structures for Ammonia Electrosynthesis Cells with Proton-Conducting Ceramic Electrolytes." ECS Transactions 109, no. 13 (2022): 3–12. http://dx.doi.org/10.1149/10913.0003ecst.

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Ammonia electrosynthesis was conducted using proton-conducting ceramic electrolysis cells in a single chamber supplied with mixed N2 and H2, to determine the active electrode regions for the electrochemical promotion of catalysis (EPOC). Cells with Fe-based cathodes of either a metal, cermet, or mixed ionic-electronic conductor (MIEC) structure were compared, to assess whether the triple-phase boundaries (TPBs) or the Fe catalyst surfaces are more effective for ammonia synthesis. Upon cathodic polarization at 600˚C, high ammonia formation rates on the order of 10−8 mol s−1 cm−2 were obtained w

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Jin, Xiongjie, Kento Taniguchi, Kazuya Yamaguchi, Kyoko Nozaki, and Noritaka Mizuno. "A Ni–Mg–Al layered triple hydroxide-supported Pd catalyst for heterogeneous acceptorless dehydrogenative aromatization." Chemical Communications 53, no. 38 (2017): 5267–70. http://dx.doi.org/10.1039/c7cc01182b.

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In the presence of a Ni–Mg–Al layered triple hydroxide-supported Pd catalyst, the acceptorless dehydrogenative aromatization of a wide range of substrates efficiently proceeded with the liberation of molecular hydrogen.

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30

Wei, Qinghua, Xiaochu Ma, Jianghui Chen, et al. "A triple-functionalised metal centre-catalyzed enantioselective multicomponent reaction." Organic Chemistry Frontiers 5, no. 19 (2018): 2799–804. http://dx.doi.org/10.1039/c8qo00703a.

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A model of a triple-functionalised metal centre for the discovery of unprecedented enantioselective reactions was exquisitely developed by using a Rh<sup>I</sup>/(DHQ)<sub>2</sub>PHAL catalyst system via multiple coordination interactions with different ligands and substrates.

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Baldassari, Lucas L., Eduardo A. Cechinatto, and Angélica V. Moro. "Triple copper catalysis for the synthesis of vinyl triazoles." Green Chemistry 21, no. 13 (2019): 3556–60. http://dx.doi.org/10.1039/c9gc01066a.

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Herein, we report our studies on the synthesis of vinyl 1,2,3-triazoles through a one-pot sequence, enabled by the same copper catalyst, of three different reactions: hydroboration involving an alkyne, azidation for a vinyl boronate and azide–alkyne cycloaddition.

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Campbell, Meghan A., Tracey McGregor Mason, and Paul S. Miller. "Interactions of platinum(II)-derivatized triplex-forming oligonucleotides with DNA." Canadian Journal of Chemistry 85, no. 4 (2007): 241–48. http://dx.doi.org/10.1139/v07-016.

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Polypyrimidine oligonucleotides can bind to tracts of contiguous purines in double-stranded DNA to form triple-stranded complexes. The stability of the triplex is reduced significantly if the target purine tract is interrupted by a single pyrimidine. Previous studies have shown that incorporation of an N4-aminoalkylcytosine into the triplex-forming oligonucleotide (TFO), opposite a single CG interruption, facilitates triplex formation. Examination of molecular models suggested that further modification of the amino group of the aminoalkyl arm might enable adduct formation with the N7 of the gu

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33

El-sayed, Omnia, Mohamed Kandiel, Sally Ibrahim, Karima Mahmound, and Mahmound Abou-El-Roos. "INFLUENCE OF LITTER SIZE ON ULTRASOUND ESTIMATED FETAL GROWTH CURVE, MATERNAL STEROIDS, OXIDATIVE STRESS AND SERUM FREE RNA IN GOATS." SPERMOVA 11, no. 1 (2021): 39–45. http://dx.doi.org/10.18548/aspe/0009.06.

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This study aimed at evaluating the litter size influence on fetal growth (marked by biparietal diameter), steroid hormones (estradiol and progesterone), oxidative stress markers [Total antioxidant capacity (TAC), superoxide dismutase (SOD), catalase (CAT), Glutathione peroxidase (GPx), and malondialdehyde (MDA)], total proteins, and serum-free RNA. Goats (n=150) were blood sampled and assessed ultrasonographically during the mid-stage of pregnancy (6th to 14th week) and were classified into non-pregnant (n=64), single (n= 55) twine (n= 25), and triple (n= 6) pregnancy according to a number of

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Heravi, Majid M., Mahdieh Ghavidel, and Leyla Mohammadkhani. "Beyond a solvent: triple roles of dimethylformamide in organic chemistry." RSC Advances 8, no. 49 (2018): 27832–62. http://dx.doi.org/10.1039/c8ra04985h.

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N,N-Dimethylformamide (DMF) is frequently used as an aprotic solvent in chemical transformations. It is a multipurpose compound besides being an effective polar aprotic solvent. DMF can be act as a reagent, a catalyst and a stabilizer.

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Zhang, Chao, Xusheng Guo, Xuwen Da, Zhanhua Wang, Xuesong Wang, and Qianxiong Zhou. "A Ru-anthraquinone dyad with triple functions of PACT, photoredox catalysis and PDT upon red light irradiation." Dalton Transactions 50, no. 31 (2021): 10845–52. http://dx.doi.org/10.1039/d1dt01088c.

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Luo, Yanlong, Huaming Sun, Weiqiang Zhang, et al. "Triple zirconocene/brønsted acid/CuO cooperative and relay catalysis system for tandem Mannich addition/C–C formative cyclization/oxidation." RSC Advances 7, no. 46 (2017): 28616–25. http://dx.doi.org/10.1039/c7ra00870h.

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37

Li, Xiangzhu, and Josef Paldus. "Energetics of naphthynes — Performance of reduced multi-reference coupled-cluster methods for diradicals." Canadian Journal of Chemistry 87, no. 7 (2009): 917–26. http://dx.doi.org/10.1139/v09-029.

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The energetics of all the possible isomers of the didehydronaphthalene (naphthalyne or naphthyne) diradical has been examined using the reduced multi-reference (RMR) coupled-cluster (CC) method with singles and doubles (RMR CCSD) that employs a modest size MR CISD wave function as an external source of the most important (primary) triples and quadruples to account for nondynamic correlation effects in the presence of quasi-degeneracy, as well as by its perturbatively corrected version for the secondary triples, the RMR CCSD(T) method. The resulting energies are compared with those obtained by

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38

Tong, Chaoli, Jinping Zhang, Weikun Chen, Xiaoying Liu, Linmin Ye, and Youzhu Yuan. "Combined halide-free Cu-based catalysts with triple functions for heterogeneous conversion of methanol into methyl acetate." Catalysis Science & Technology 9, no. 21 (2019): 6136–44. http://dx.doi.org/10.1039/c9cy01321k.

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Fang, Guichun, and Xihe Bi. "Silver-catalysed reactions of alkynes: recent advances." Chemical Society Reviews 44, no. 22 (2015): 8124–73. http://dx.doi.org/10.1039/c5cs00027k.

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Silver is a less expensive noble metal. Superior alkynophilicity due to π-coordination with the carbon–carbon triple bond makes silver salts ideal catalysts for alkyne-based organic reactions. This critical review clearly indicates that alkyne chemistry has been greatly benefiting from the emerging “Silver Rush” and will continue to generate increasingly more synthetic possibilities in the near future.

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Singh, Meenesh R., Ezra L. Clark, and Alexis T. Bell. "Thermodynamic and achievable efficiencies for solar-driven electrochemical reduction of carbon dioxide to transportation fuels." Proceedings of the National Academy of Sciences 112, no. 45 (2015): E6111—E6118. http://dx.doi.org/10.1073/pnas.1519212112.

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Thermodynamic, achievable, and realistic efficiency limits of solar-driven electrochemical conversion of water and carbon dioxide to fuels are investigated as functions of light-absorber composition and configuration, and catalyst composition. The maximum thermodynamic efficiency at 1-sun illumination for adiabatic electrochemical synthesis of various solar fuels is in the range of 32–42%. Single-, double-, and triple-junction light absorbers are found to be optimal for electrochemical load ranges of 0–0.9 V, 0.9–1.95 V, and 1.95–3.5 V, respectively. Achievable solar-to-fuel (STF) efficiencies

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Schnicker, Nicholas J., and Mishtu Dey. "Structural analysis of cofactor binding for a prolyl 4-hydroxylase from the pathogenic bacteriumBacillus anthracis." Acta Crystallographica Section D Structural Biology 72, no. 5 (2016): 675–81. http://dx.doi.org/10.1107/s2059798316004198.

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The prolyl 4-hydroxylases (P4Hs) are mononuclear nonheme iron enzymes that catalyze the formation of 4R-hydroxyproline from many different substrates, with various biological implications. P4H is a key player in collagen accumulation, which has implications in fibrotic disorders. The stabilization of collagen triple-helical structureviaprolyl hydroxylation is the rate-limiting step in collagen biosynthesis, and therefore P4H has been extensively investigated as a potential therapeutic target of fibrotic disease. Understanding how these enzymes recognize cofactors and substrates is important an

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Radhakrishnan, Ishwar, Dinshaw J. Patel, James M. Veal, and Xiaolian Gao. "Solution conformation of a G.cntdot.TA [guanosine.cntdot.thymidine-5'-adenylic acid] triple in an intramolecular pyrimidine.cntdot.purine.cntdot.pyrimidine DNA triplex." Journal of the American Chemical Society 114, no. 17 (1992): 6913–15. http://dx.doi.org/10.1021/ja00043a045.

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Koo, Yunha, Seoyoung Kang, Howon Ra, Sungmin Yoon, and Changkook Ryu. "Numerical Evaluation of Heat Transfer and Conversion Efficiency by Tube Design and Flow Configuration for a Compact Steam-Methane Reformer." Energies 16, no. 22 (2023): 7475. http://dx.doi.org/10.3390/en16227475.

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In the chemical industry, hydrogen (H2) production through steam-methane reforming is a well-established process. With the growing demand for H-fueled vehicles and charging stations, there is a need for compact reformers with efficient heat transfer capabilities. In this study, computational fluid dynamics simulations were performed to evaluate the methane (CH4) conversion and heat transfer efficiency of various reformer designs. These designs include single, double, and triple tubes, each with parallel- and counter-flow configurations between the reformate feed and heat source. The findings r

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Merici, Giovanni, Davide Amidani, Giorgio Dieci, and Claudio Rivetti. "A New Strategy to Investigate RNA:DNA Triplex Using Atomic Force Microscopy." International Journal of Molecular Sciences 25, no. 5 (2024): 3035. http://dx.doi.org/10.3390/ijms25053035.

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Over the past decade, long non-coding RNAs (lncRNAs) have been recognized as key players in gene regulation, influencing genome organization and expression. The locus-specific binding of these non-coding RNAs (ncRNAs) to DNA involves either a non-covalent interaction with DNA-bound proteins or a direct sequence-specific interaction through the formation of RNA:DNA triplexes. In an effort to develop a novel strategy for characterizing a triple-helix formation, we employed atomic force microscopy (AFM) to visualize and study a regulatory RNA:DNA triplex formed between the Khps1 lncRNA and the en

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Wanjala, George Wafula, Arnold Nola Onyango, David Rasugu Abuga, John Kamathi Muchuna, Calvin Onyango, and Moses Makayoto. "Lysine Reacts with Cholesterol Hydroperoxide to Form Secosterol Aldehydes and Lysine-Secosterol Aldehyde Adducts." Journal of Chemistry 2020 (February 10, 2020): 1–8. http://dx.doi.org/10.1155/2020/5862645.

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Two cholesterol secosterol aldehydes, namely, 3β-hydroxy-5-oxo-5,6-secocholestan-6-al (secosterol A) and its aldolization product 3β-hydroxy-5β-hydroxy-B-norcholestane-6β-carboxyaldehyde (secosterol B), are highly bioactive compounds which have been detected in human tissues and potentially contribute to the development of physiological dysfunctions such as atherosclerosis, Alzheimer’s disease, diabetes, and cancer. They were originally considered to be exclusive products of cholesterol ozonolysis and thus to be evidence for endogenous ozone formation. However, it was recently postulated that

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Xiao, Lijuan, Yaqin Chai, Ruo Yuan, Haijun Wang, and Lijuan Bai. "Highly enhanced electrochemiluminescence based on pseudo triple-enzyme cascade catalysis and in situ generation of co-reactant for thrombin detection." Analyst 139, no. 5 (2014): 1030–36. http://dx.doi.org/10.1039/c3an02134c.

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Chen, Zhi Wen, Li Xin Chen, Ming Jiang, et al. "A triple atom catalyst with ultrahigh loading potential for nitrogen electrochemical reduction." Journal of Materials Chemistry A 8, no. 30 (2020): 15086–93. http://dx.doi.org/10.1039/d0ta04919k.

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A triple atom catalyst of Fe<sub>3</sub>-GDY/Gra with the theoretical loading of 35.8 wt% is explored for NRR, which shows an outstanding catalytic activity with the potential of m0.26 V vs. RHE due to the unique properties of Fe<sub>3</sub> active sites.

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Leitmannová, Eliška, Petr Jirásek, Jakub Rak, Lucie Potucká, Petr Kačer, and Libor Červený. "Terminal C≡C triple bond hydrogenation using immobilized Wilkinson’s catalyst." Research on Chemical Intermediates 36, no. 5 (2010): 511–22. http://dx.doi.org/10.1007/s11164-010-0162-1.

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Bernhardt, Paul V., Piao Chin, and Des R. Richardson. "Iron catalysed assembly of an asymmetric mixed-ligand triple helicate." Dalton Transactions, no. 20 (2004): 3342. http://dx.doi.org/10.1039/b408781j.

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Zhong, Chenglin, Qingwen Zhou, Shengwen Li, et al. "Enhanced synergistic catalysis by a novel triple-phase interface design of NiO/Ru@Ni for the hydrogen evolution reaction." Journal of Materials Chemistry A 7, no. 5 (2019): 2344–50. http://dx.doi.org/10.1039/c8ta11171e.

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High-efficiency synergistic catalysis was realized by a novel triple-phase interface design of the bifunctional catalysts of NiO and Ru nanoparticles, leading to simultaneous enhancement of all elementary steps.

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