Effect of Short Reducing Pulses on the Dynamic Structure, Activity, and Stability of Pd/Al2O3 for Wet Lean Methane Oxidation

ACS Catalysis ◽  
2021 ◽  
pp. 4870-4879
Author(s):  
Tanja Franken ◽  
Maneka Roger ◽  
Andrey W. Petrov ◽  
Adam H. Clark ◽  
Miren Agote-Arán ◽  
...  
Keyword(s):  
Methane Oxidation ◽  
Dynamic Structure ◽  
Structure Activity

Phase reconfiguration of multivalent nickel sulfides in hydrogen evolution

2022 ◽  
Author(s):  
Yu Sun ◽  
Jing Wu ◽  
Zheng Zhang ◽  
Qingliang Liao ◽  
Suicai Zhang ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Life Time ◽  
Dynamic Structure ◽  
Time Dynamic ◽  
Structure Activity

We report a universal phase reconfiguration phenomenon and a doping strategy to enhance the activity of multivalent nickel sulfides in hydrogen evolution. Based on these, a life-time dynamic structure-activity correlation has been established.

scholarly journals Perovskite-supported Palladium for Methane Oxidation – Structure–Activity Relationships

2012 ◽  
Vol 66 (9) ◽  
pp. 675-680 ◽  
Author(s):  
Arnim Eyssler ◽  
Ye Lu ◽  
Santhosh Kumar Matam ◽  
Anke Weidenkaff ◽  
Davide Ferri
Keyword(s):  
Methane Oxidation ◽  
Structure Activity Relationships ◽  
Structure Activity ◽  
Supported Palladium

Penicillin's catalytic mechanism revealed by inelastic neutrons and quantum chemical theory

2013 ◽  
Vol 15 (47) ◽  
pp. 20447-20455 ◽  
Author(s):  
Zoltán Mucsi ◽  
Gregory A. Chass ◽  
Péter Ábrányi-Balogh ◽  
Balázs Jójárt ◽  
De-Cai Fang ◽  
...  
Keyword(s):  
Quantum Chemical ◽  
Catalytic Mechanism ◽  
Dynamic Structure ◽  
Structure Activity Relationship ◽  
Enzyme Inactivation ◽  
Activity Relationship ◽  
Chemical Theory ◽  
Structure Activity ◽  
Bacterial Enzyme ◽  
Geometric Changes

Penicillin's dynamic structure–activity relationship resolved by inelastic neutrons kinetics, NMR and QM/MM-theory. Self-activating geometric changes catalyse bacterial enzyme inactivation.

ChemInform Abstract: Perovskite-Supported Palladium for Methane Oxidation - Structure-Activity Relationships

ChemInform ◽  
2013 ◽  
Vol 44 (31) ◽  
pp. no-no
Author(s):  
Arnim Eyssler ◽  
Ye Lu ◽  
Santhosh Kumar Matam ◽  
Anke Weidenkaff ◽  
Davide Ferri
Keyword(s):  
Methane Oxidation ◽  
Structure Activity Relationships ◽  
Structure Activity ◽  
Supported Palladium

The Formation, Structure, Distribution and Frequency of Nuclear Pores

1971 ◽  
Vol 29 ◽  
pp. 518-519
Author(s):  
G. G. Maul
Keyword(s):  
Nuclear Pore Complex ◽  
Nuclear Membrane ◽  
Dynamic Structure ◽  
Nuclear Pore ◽  
Nuclear Pores ◽  
Filter Function ◽  
Etching Technique ◽  
Selective Filter ◽  
Membranous Part

The chromatin of eukaryotic cells is separated from the cytoplasm by a double membrane. One obvious structural specialization of the nuclear membrane is the presence of pores which have been implicated to facilitate the selective nucleocytoplasmic exchange of a variety of large molecules. Thus, the function of nuclear pores has mainly been regarded to be a passive one. Non-membranous diaphragms, radiating fibers, central rings, and other pore-associated structures were thought to play a role in the selective filter function of the nuclear pore complex. Evidence will be presented that suggests that the nuclear pore is a dynamic structure which is non-randomly distributed and can be formed during interphase, and that a close relationship exists between chromatin and the membranous part of the nuclear pore complex.Octagonality of the nuclear pore complex has been confirmed by a variety of techniques. Using the freeze-etching technique, it was possible to show that the membranous part of the pore complex has an eight-sided outline in human melanoma cells in vitro. Fibers which traverse the pore proper at its corners are continuous and indistinguishable from chromatin at the nucleoplasmic side, as seen in conventionally fixed and sectioned material. Chromatin can be seen in octagonal outline if serial sections are analyzed which are parallel but do not include nuclear membranes (Fig. 1). It is concluded that the shape of the pore rim is due to fibrous material traversing the pore, and may not have any functional significance. In many pores one can recognize a central ring with eight fibers radiating to the corners of the pore rim. Such a structural arrangement is also found to connect eight ribosomes at the nuclear membrane.

Application of FRAP and digitized fluorescence microscopy to problems in cell membrane dynamics

1988 ◽  
Vol 46 ◽  
pp. 118-119
Author(s):  
K. Jacobson ◽  
A. Ishihara ◽  
B. Holifield ◽  
F. Zhang
Keyword(s):  
Fluorescence Microscopy ◽  
Cell Biology ◽  
Extended Period ◽  
Dynamic Structure ◽  
Living Cells ◽  
Membrane Dynamics ◽  
Molecular Cell Biology ◽  
Image Averaging ◽  
Single Living Cells ◽  
Single Living

Our laboratory is concerned with understanding the dynamic structure of the plasma membrane with particular reference to the movement of membrane constituents during cell locomotion. In addition to the standard tools of molecular cell biology, we employ both fluorescence recovery after photo- bleaching (FRAP) and digitized fluorescence microscopy (DFM) to investigate individual cells. FRAP allows the measurement of translational mobility of membrane and cytoplasmic molecules in small regions of single, living cells. DFM is really a new form of light microscopy in that the distribution of individual classes of ions, molecules, and macromolecules can be followed in single, living cells. By employing fluorescent antibodies to defined antigens or fluorescent analogs of cellular constituents as well as ultrasensitive, electronic image detectors and video image averaging to improve signal to noise, fluorescent images of living cells can be acquired over an extended period without significant fading and loss of cell viability.

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