Results 41 to 50 of about 63,826 (275)

Merging Biocatalysis and Chemocatalysis in Flow: State‐of‐the‐Art and Future Directions for Sustainable Synthesis

Angewandte Chemie, EarlyView.
This review highlights recent advances in integrating biocatalysis and chemocatalysis in continuous flow to create streamlined, sustainable processes. It examines chemo‐enzymatic cascades combining at least one enzymatic and one chemical step, discusses challenges such as enzyme immobilization, leaching, and reactor clogging, and presents solutions ...
Petros Siasiaridis, Matteo Damian, Francesco G. Mutti   +2 more
wiley   +2 more sources

Biocatalytic cofactor regeneration for CO2 reduction: Integration of a hydrogenase and a formate dehydrogenase in H2-driven systems

Journal of CO2 Utilization
Formate dehydrogenases catalyze the reversible oxidation of formate to carbon dioxide. These enzymes play an important role in CO2 reduction and serve as nicotinamide cofactor recycling enzymes.
Michael Groh, Elisabeth Lettau, Janna Schoknecht, Jan Liedtke, Lars Lauterbach, Silke Leimkühler   +5 more
doaj   +1 more source

A study of methyl formate in astrochemical environments

, 2011
Several complex organic molecules are routinely detected in high abundances towards hot cores and hot corinos. For many of them, their paths of formation in space are uncertain, as gas phase reactions alone seem to be insufficient.
A. Occhiogrosso, Awad, Beltrán, Bennett, Boland, Bottinelli, Bringa, Brown, Cazaux, Cesaroni, Charnley, Charnley, Churchwell, Collings, Fuchs, Garozzo, Garrod, Gerakines, Hasegawa, Herbst, Herbst, Herbst, Hirano, Hollis, Horn, Hudson, Ikeda, Laas, Lerate, M. E. Palumbo, Maret, Mennella, Modica, P. Modica, Palumbo, Palumbo, Remijan, Roberts, S. Viti, Sakai, Viti, Viti, Viti, Wakelam, Watanabe, Woodall, Ziegler, Öberg, Öberg   +48 more
core   +1 more source

Sertraline Treatment Can Mimic Niemann‐Pick Type C Biomarker Profile: A Diagnostic Pitfall

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Oxysterols (cholestane‐3β,5α,6β‐triol and 7‐ketocholesterol) and N‐palmitoyl‐O‐phosphocholineserine (PPCS) are sensitive biomarkers for Niemann‐Pick disease type C (NPC) screening. However, false‐positive results occur, with a biomarker profile suggestive of NPC despite the absence of pathogenic variants in genes involved in NPC or ...
Maria Makrygianni, Cecile Pagan, Antony Citterio‐Quentin, Isabelle Rouvet, Giulia Dingeo, Cyril Hanin, Claudine Laurent‐Levinson, Samia Pichard, Bénédicte Héron, Clément Gourguechon, Daniele Mandia, Jerome Guitton, Carole Lacout, Nicolas Schleinitz, Florient Potier, Olivier Flabeau, Elsa Besse‐Pinot, Foudil Lamari, Magali Pettazzoni, Yann Nadjar   +19 more
wiley   +1 more source

A Revised Model for Muscarine Biosynthesis Involving Lysine Trimethylation

Angewandte Chemie, EarlyView.
The fatal mushroom toxin l‐(+)‐muscarine is one of the most prominent natural products. We elucidated its biosynthetic origin in the sweating mushroom Collybia rivulosa based on incorporation of stable isotope‐labeled compounds and extensive mass spectrometric analyses.
Sebastian Dörner, Kai Rogge, Felix Trottmann, Christian Hertweck, Dirk Hoffmeister   +4 more
wiley   +2 more sources

Fractionation of stable carbon isotopes during formate consumption in anoxic rice paddy soils and lake sediments [PDF]

Biogeosciences
Formate is energetically equivalent to hydrogen and thus is an important intermediate during the breakdown of organic matter in anoxic rice paddy soils and lake sediments.
R. Conrad, P. Claus
doaj   +1 more source

A high resolution study of complex organic molecules in hot cores

, 2014
We present the results of a line identification analysis using data from the IRAM Plateau de Bure Inferferometer, focusing on six massive star-forming hot cores: G31.41+0.31, G29.96-0.02, G19.61-0.23, G10.62-0.38, G24.78+0.08A1 and G24.78+0.08A2.
Beltrán, Maria T., Calcutt, Hannah, Codella, Claudio, Fontani, Francesco, Viti, Serena, Woods, Paul M.   +5 more
core   +1 more source

Glycolaldehyde, methyl formate and acetic acid adsorption and thermal desorption from interstellar ices [PDF]

, 2014
We have undertaken a detailed investigation of the adsorption, desorption and thermal processing of the astrobiologically significant isomers glycolaldehyde, acetic acid and methyl formate.
Brown, Wendy A, Burke, Daren J, Puletti, Fabrizio, Slater, Ben, Viti, Serena, Woods, Paul M   +5 more
core   +1 more source

Enthalpies of formation of methyl benzenecarboxylates

Journal of the Chemical Society, Faraday Transactions, 1998
The relative stabilities of the isomeric dimethyl benzenedicarboxylates have been studied by a thermochemical investigation of dimethyl phthalate, dimethyl isophthalate and dimethyl terephthalate. The enthalpies of formation in the condensed state for dimethyl phthalate and dimethyl isophthalate, determined from combustion calorimetry measurements, are
Roux, María Victoria, Jiménez, Pilar, Dávalos, J.Z., Turrión, C., Afeefy, Hussein Y., Liebman, Joel F.   +5 more
openaire   +2 more sources

Ideal Molecular Sieving with a Dense MOF for Helium Upgrading with Highly Diffusion Selective Mixed Matrix Membranes

Advanced Functional Materials, EarlyView.
The separation of Helium gas from natural gas is challenging but highly important. MIL‐116(Ga), a “non‐porous” metal–organic framework is used as a molecular sieve to separate He from CH4. Druse‐like MIL‐116(Ga) particles are integrated into polysulfone mixed matrix membranes.
Ayisha Komal, Laura Calderón‐Rodríguez, Oksana Smirnova, Eren Grossmann, Aparna Binu Varghese, Karen Marlenne Garcia Alvarez, Andreas Schneemann, Thomas Hoyer, Ralf Wyrwa, Felix Helmut Schacher, Alexander Knebel   +10 more
wiley   +1 more source