Results 21 to 30 of about 60,841 (258)

C2α‐carbanion‐protonating glutamate discloses tradeoffs between substrate accommodation and reaction rate in actinobacterial 2‐hydroxyacyl‐CoA lyase

FEBS Open Bio, EarlyView.
Enzymes of the 2‐hydroxyacyl‐CoA lyase group catalyze the condensation of formyl‐CoA with aldehydes or ketones. Thus, by structural adaptation of active sites, practically any pharmaceutically and industrially important 2‐hydroxyacid could be biotechnologically synthesized. Combining crystal structure analysis, active site mutations and kinetic assays,
Michael Zahn, Barbara Seroka, Ryszard Lazny, Zenon Lotowski, Thore Rohwerder   +4 more
wiley   +1 more source

Identifying the isolated transition metal ions/oxides in molecular sieves and on oxide supports by UV resonance Raman spectroscopy

, 2003
Isolated transition metal ions/oxides in molecular sieves and on surfaces are a class of active sites for selective oxidation of hydrocarbons. Identifying the active sites and their coordination structure is vital to understanding their essential role ...
Li, C
core   +1 more source

White lines and d-band occupancy for the 3d transition-metal oxides and lithium transition-metal oxides [PDF]

, 2004
Electron energy-loss spectrometry was employed to measure the white lines at the L-2,L-3 absorption edges of the 3d transition-metal oxides and lithium transition-metal oxides.
Ahn, Channing C., Ouyang, H., Graetz, Jason, Ouyang, Hao, Fultz, B., Rez, P., Graetz, J., Ahn, C.C., Rez, Peter, Fultz, Brent   +9 more
core   +1 more source

Electronic Entanglement in Late Transition Metal Oxides [PDF]

Physical Review Letters, 2012
Minor changes.
Patrik Thunström, Igor Di Marco, Olle Eriksson   +2 more
openaire   +3 more sources

Evolutionarily divergent DUF4465 domains have a common vitamin B12‐binding function

FEBS Open Bio, EarlyView.
We show that DUF4465 family proteins, widespread across bacteria from gut microbiomes, hydrothermal vents, and soil, share a common vitamin B12‐binding function. These augmented β‐jellyroll proteins bind vitamin B12 via extended loops. Our findings establish sequence‐diverse DUF4465 proteins as a widespread class of B12‐binding proteins, highlighting ...
Charlea Clarke, Michal Banasik, Rokas Juodeikis, Martin J. Warren, Richard W. Pickersgill   +4 more
wiley   +1 more source

Transition-Metal-Incorporated Aluminum Oxide Thin Films: Toward Electronic Structure Design in Amorphous Mixed-Metal Oxides

, 2018
Amorphous metal oxides have numerous applications spanning from electronics to catalysis. The ability to rationally design the electronic structure of such materials would thus have significant impact. Previous work has shown that the amorphous structure
Elizabeth A. Cochran (3588968), Lisa J. Enman (1365759), Shannon W. Boettcher (1294098), Michaela Burke Stevens (4063855), Erica Pledger (1365747), Matthew G. Kast (1354530)   +5 more
core   +1 more source

Electrodeposition of Atmosphere-Sensitive Ternary Sodium Transition Metal Oxide Films for Sodium-Based Electrochemical Energy Storage

, 2021
Layered sodium transition metal oxides constitute an important class of materials with applications including electrochemical energy storage, high temperature superconductivity and electrocatalysis.
Paul V., Braun, Manohar H., Karigerasi, Arghya, Patra, Ashish A., Kulkarni, Jian-min, Zuo, Beniamin, Zahiri, Michael A., Caple, Saran, Pidaparthy, Daniel P., Shoemaker, Jerome Davis, III   +9 more
core   +1 more source

Electronic Hamiltonian for transition-metal oxide compounds [PDF]

Physical Review B, 1996
An effective electronic Hamiltonian for transition metal oxide compounds is presented. For Mn-oxides, the Hamiltonian contains spin-2 ``spins'' and spin-3/2 ``holes'' as degrees of freedom. The model is constructed from the Kondo-lattice Hamiltonian for mobile $e_g$ electrons and localized $t_{2g}$ spins, in the limit of a large Hund's coupling.
Müller-Hartmann, Erwin, Dagotto, Elbio
openaire   +3 more sources

Sudden anaerobization in Amphibacillus xylanus increases intracellular labile ferrous iron and inhibits cell growth

FEBS Open Bio, EarlyView.
Abruptly changing from aerobic to anaerobic conditions (sudden anaerobization) induced growth inhibition and a significant increase in intracellular labile ferrous iron in the aerotolerant anaerobe Amphibacillus xylanus. We found that free flavins mediate efficient electron transfer from NADH to ferric iron under anaerobic conditions, suggesting that ...
Shinya Kimata, Yoichi Sakai, Keisuke Tanaka, Etsuro Yoshimura, Ken Kitano, Morio Ishikawa, Tadahiro Nakamoto, Tsutomu Takayama, Hirofumi Inoue, Kaho Nomura, Tomonori Suzuki, Masataka Uchino, Akira Abe, Youichi Niimura   +13 more
wiley   +1 more source

Transition-Metal-Free C–P Bond Formation via Decarboxylative Phosphorylation of Cinnamic Acids with P(O)H Compounds

, 2018
A novel, transition-metal-free phosphorylation of cinnamic acids with P­(O)H compounds has been developed via radical-promoted decarboxylation under mild conditions.
Lixin Liu (676169), Li-Biao Han (832458), Dan Zhou (29408), Yongbo Zhou (1502590), Jianyu Dong (1519705), Shuang-Feng Yin (1478986)   +5 more
core   +1 more source