Hakopian, Sheron Niks, Dimitri Hille, Russ
The nature of air-inactivation of the formate dehydrogenase FdsDABG from Cupriavidus necator has been investigated. It is found that superoxide, generated in the reaction of reduced enzyme with oxygen, is responsible for the loss of activity and that superoxide dismutase protects the enzyme from air-inactivation. Inhibition appears to be due to the...
Noa, Francoise M. Amombo Grape, Erik Svensson Ahlen, Michelle Reinholdsson, William E. Gob, Christian R. Coudert, Francois-Xavier Cheung, Ocean Inge, A. Ken Ohrstrom, Lars
A metal-organic framework (MOF)CTH-17based on lanthanum-(III) and the conformationally chiral linker 1,2,3,4,5,6-hexakis(4-carboxyphenyl)-benzene, cpb6-: [La2(cpb)]middot1.5dmf was prepared by the solvothermal method indimethylformamide (dmf) and characterized by variable-temperature X-raypowder diffraction (VTPXRD), variable-temperature X-ray sing...
Ohmer, Christopher J Dasgupta, Medhanjali Patwardhan, Anjali Bogacz, Isabel Kaminsky, Corey Doyle, Margaret D Chen, Percival Yang-Ting Keable, Stephen M Makita, Hiroki Simon, Philipp S
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Methyl-Coenzyme M Reductase (MCR) catalyzes the biosynthesis of methane in methanogenic archaea, using a catalytic Ni-centered Cofactor F430 in its active site. It also catalyzes the reverse reaction, that is, the anaerobic activation and oxidation, including the cleavage of the CH bond in methane. Because methanogenesis is the major source of meth...
Xing, Yi Li, Zhongyu Baryshnikov, Glib Shen, Shen Ye, Danfeng Ågren, Hans Zhu, Liangliang
In the solid state, the molecular polarization of donor-acceptor (D-A) molecules can be implemented in a simple way via the use of an external polarizing source (e.g., an electric field). However, internal chemical polarization approaches are less studied due to difficulties related to controlling the charge-separation orientation in the solid stat...
Dekyvere, Sander Hilal, Mohamed Elhousseini Chaemchuen, Somboon Zhuiykov, Serge Verpoort, Francis
MOF-derived carbon-based materials have attracted widespread attention due to their relatively large surface area, morphology, and their stability in water. Considering these advantages, these materials present themselves as excellent adsorbents. In this work, a novel method was designed for the fabrication of a nano zero-valent-iron (nZVI) carbon ...
Castner, Ashleigh T. Su, Hao Grape, Erik Svensson Inge, A. Ken Johnson, Ben A. Ahlquist, Marten S. G. Ott, Sascha
Electron transport through metal-organic frameworks by ahopping mechanism between discrete redox active sites is coupled to diffusion-migration of charge-balancing counter cations. Experimentally determinedapparent diffusion coefficients,Deapp, that characterize this form of chargetransport thus contain contributions from both processes. While this...
Stepan, Thomas Tété, Lisa Laundry-Mottiar, Lila Romanovskaia, Elena Hedberg, Yolanda S. Danninger, Herbert Auinger, Michael
An analytical solution for the effect of particle size on the current density and near-surface ion distribution around spherical nanoparticles is presented in this work. With the long-term aim to support predictions on corrosion reactions in the human body, the spherical diffusion equation was solved for a set of differential equations and algebrai...
Zhang, Y Qi, L Leonhardt, B Bell, AT
An interest in the on-purpose production of 1,3-butadiene (1,3-BD) has grown, as a consequence of the decline in naphtha cracking for the production of ethene and propene, products that can now be produced economically by thermal dehydrogenation of ethane and propane contained in natural gas. In this study, the mechanism and kinetics of n-butane de...
Rosell-García, Tamara Rivas-Muñoz, Sergio Colige, Alain Rodriguez-Pascual, Fernando
Members of the lysyl oxidase (LOX) family catalyze the oxidative deamination of lysine and hydroxylysine residues in collagen and elastin in the initiation step of the formation of covalent cross-links, an essential process for connective tissue maturation. Proteolysis has emerged as an important level of regulation of LOX enzymes with the cleavage...
Bruneel, Els Rijckaert, Hannes Diez Sierra, Javier De Buysser, Klaartje Van Driessche, Isabel
This work discusses the development of an analysis routine for evaluating the nanoparticle distribution in nanocomposite thin films. YBa2Cu3O7−δ (YBCO) nanocomposite films were synthesized via a chemical solution deposition approach starting from colloidal YBCO solutions with preformed nanoparticles. The distribution of the nanoparticles and interl...