Results 71 to 80 of about 110,401 (369)

Specific Enhancement of Catalytic Activity by a Dicopper Core: Selective Hydroxylation of Benzene to Phenol with Hydrogen Peroxide.

Angewandte Chemie, 2017
A dicopper(II) complex, stabilized by the bis(tpa) ligand 1,2-bis[2-[bis(2-pyridylmethyl)aminomethyl]-6-pyridyl]ethane (6-hpa), [Cu2 (μ-OH)(6-hpa)]3+ , was synthesized and structurally characterized.
Tomokazu Tsuji, Antonius Andre Zaoputra, Y. Hitomi, Kaoru Mieda, T. Ogura, Y. Shiota, K. Yoshizawa, Hiroyasu Sato, M. Kodera   +8 more
semanticscholar   +1 more source

Unraveling the Nanoscale Structure of Organic–Inorganic Hybrid Materials

Advanced Materials Interfaces, EarlyView.
A Si‐wafer‐based NPs@SILP system facilitates detailed characterization of spatial structure and interactions between ionic liquid molecules and nanoparticles. The approach yields a uniform ionic liquid monolayer decorated with evenly distributed Ru nanoparticles, showing particle deposition disturbs the SILP's conformational order.
Jacob Johny, Savarithai Jenani Louis Anandaraj, Carolin Mehrmann, Xin Wei, Ankita Das, Niklas Scheer, Yuke Yang, Walid Hetaba, Petra Ebbinghaus, Ulrich Simon, Rüdiger‐A. Eichel, Florian Hausen, Holger Uphoff, Hans‐Christoph Mertins, R. Kramer Campen, Yujin Tong, Martin Rabe, Walter Leitner, Alexis Bordet, Marc Frederic Tesch   +19 more
wiley   +1 more source

On the heterogeneity of the mitochondrial C27-steroid 26-hydroxylase system

Journal of Lipid Research, 1976
Mitochondrial 26-hydroxylation of exogenous cholesterol, endogenous cholesterol, and 5β-cholestane-3α,7α,12α-triol was studied. 26-Hydroxylation of endogenous cholesterol was measured by mass fragmentography.
J Gustafsson
doaj  

Biotransformation of Isoflavone Using Enzymatic Reactions

Molecules, 2013
The roles of cytochrome P450 monooxygenases (CYPs) from Streptomyces spp. which are called the “treasure islands” for natural products for medicine and antibiotics are not well understood.
Changhyun Roh
doaj   +1 more source

The regulatory mechanisms of proline and hydroxyproline metabolism: Recent advances in perspective

Frontiers in Oncology, 2023
For diverse human tumors, growth and metastasis are dependent on proline synthesis, but the mechanisms underlying this association are not clear. Proline incorporated into collagen is primarily synthesized from glutamine.
James M. Phang
doaj   +1 more source

Cold sensitivity of TRPA1 is unveiled by the prolyl hydroxylation blockade-induced sensitization to ROS

Nature Communications, 2016
Mammalian transient receptor potential ankyrin 1 (TRPA1) is a polymodal nociceptor that plays an important role in pain generation, but its role as a cold nociceptor is still controversial.
Takahito Miyake, Saki Nakamura, Meng Zhao, Kanako So, Keisuke Inoue, T. Numata, N. Takahashi, H. Shirakawa, Y. Mori, T. Nakagawa, S. Kaneko   +10 more
semanticscholar   +1 more source

Constant Enzymatic in situ Production of H2O2 for an Unspecific Peroxygenase by an l–Amino Acid Oxidase

Advanced Synthesis &Catalysis, EarlyView.
Abstract Unspecific Peroxygenases have been the subject of a lot of research in the recent past as they offer opportunities for green hydroxylation reactions using hydrogen peroxide (H2O2) as donor. A striking problem of UPOs is their low stability against their own co‐substrate H2O2. In order to prevent the deactivation, we developed an enzyme cascade
Simon Last, Tobias Heinks, Niklas Dietz, Simon Koopmeiners, Gabriele Fischer von Mollard, Martin J. Weissenborn, Jan von Langermann   +6 more
wiley   +1 more source

Characterization of 6 alpha-hydroxylation of taurochenodeoxycholic acid in pig liver.

Journal of Lipid Research, 1988
The properties of the species-specific 6 alpha-hydroxylation of taurochenodeoxycholic acid were studied in subcellular fractions from pig liver. The hydroxylation was observed in microsomes but not in mitochondria.
H Boström
doaj  

Tyrosine Hydroxylation in Betalain Pigment Biosynthesis Is Performed by Cytochrome P450 Enzymes in Beets (Beta vulgaris)

PLoS ONE, 2016
Yellow and red-violet betalain plant pigments are restricted to several families in the order Caryophyllales, where betacyanins play analogous biological roles to anthocyanins. The initial step in betalain biosynthesis is the hydroxylation of tyrosine to
Rasika Sunnadeniya, A. Bean, Matthew Brown, Neda Akhavan, Gregory J. Hatlestad, Antonio Gonzalez, V. Vaughan Symonds, A. Lloyd   +7 more
semanticscholar   +1 more source

Dual Charge Transfer Mechanisms in Intimately Bonded S‐scheme Heterojunction Photocatalyst with Expeditious Activity toward Environmental Remediation

Advanced Sustainable Systems, EarlyView.
A novel MBOdCN S‐scheme heterojunction photocatalyst is fabricated using pristine Mg‐Bi2O3 and grayish g‐C3N4, where dynamic dual charge migration paths occur to accelerate exciton dissociation. This composite catalyst realizes high degradation efficiency of up to 99.56% of oxytetracycline (OTC) removal under optimized conditions. The material exhibits
Potlako J. Mafa, Mope E. Malefane, Francis Opoku, Adewale O. Oladipo, Gcina Mamba, Tunde L. Yusuf, Jemal Fito Nure, Sogolo L. Lebelo, Dan Liu, Jianzhou Gui, Bhekie B. Mamba, Alex T. Kuvarega   +11 more
wiley   +1 more source