Results 111 to 120 of about 20,684 (285)

Bacterial metabolism of methylated amines and identification of novel methylotrophs in Movile Cave [PDF]

, 2015
Movile Cave, Romania, is an unusual underground ecosystem that has been sealed off from the outside world for several million years and is sustained by non-phototrophic carbon fixation. Methane and sulfur-oxidising bacteria are the main primary producers,
Alexandra M Hillebrand-Voiculescu, Myriam El Khawand, Colin Murrell, J, Murrell, J. Colin, Daniela Wischer, Antonia Johnston, Chen, Yin; id_orcid, Stephenson, Jason, El Khawand, Myriam, Murrell, J. C. (J. Colin), J Colin Murrell, Hillebrand-Voiculescu, Alexandra M, Hillebrand-Voiculescu, Alexandra M., Deepak Kumaresan, Wischer, Daniela, Chen, Yin, Jason Stephenson, Kumaresan, Deepak, Murrell, J Colin, Johnston, Antonia, Yin Chen   +20 more
core   +1 more source

Metabolic Flux Analysis Reveals Cell Line‐Specific Rewiring in CHO Cells Following TCA Cycle Intermediate Feeding for Bioprocess pH Control

Biotechnology and Bioengineering, EarlyView.
ABSTRACT Chinese hamster ovary (CHO) cells are the leading host for recombinant therapeutic protein production in the biopharma industry. In this study, we investigated how feeding acidic forms of tricarboxylic acid (TCA) cycle intermediates—malic acid, succinic acid, and α‐ketoglutaric acid—affects cell culture performance and metabolism in two ...
Sarah A. Sacco, Kevin J. Ruiz‐Márquez, Rachel Moen, Irina Trenary, Xiaolin Zhang, Xiaowen Wang, Malik Padellan, Henry Lin, Jamey D. Young   +8 more
wiley   +1 more source

Formation of Large Native Sulfur Deposits Does Not Require Molecular Oxygen

Frontiers in Microbiology, 2019
Large native (i.e., elemental) sulfur deposits can be part of caprock assemblages found on top of or in lateral position to salt diapirs and as stratabound mineralization in gypsum and anhydrite lithologies. Native sulfur is formed when hydrocarbons come
Amanda L. Labrado, Benjamin Brunner, Stefano M. Bernasconi, Jörn Peckmann   +3 more
doaj   +1 more source

Reconciling discrepant minor sulfur isotope records of the Great Oxidation Event. [PDF]

Nat Commun, 2023
Uveges BT, Izon G, Ono S, Beukes NJ, Summons RE.   +4 more
europepmc   +1 more source

Silicon isotope fractionation during abiotic silica precipitation at low temperatures: Inferences from flow-through experiments

, 2014
Silicon isotopes have considerable potential as proxy for (near-) surface processes and environmental conditions. However, unambiguous interpretations of isotope signatures in natural silica deposits are often hampered by a lack of independent ...
van Bergen, M.J., Roerdink, Desiree L., van Cappellen, P.H., Van Cappellen, Philippe, NWO-NSO: Testing the robustness of the sulfur stable isotope biomarker and paleoredox indicator for planetary exploration, van Bergen, Manfred J., Roerdink, D.L., Vroon, Pieter Z., Petrology, Geilert, Sonja, NWO-ALW Open: Exploring the Earth's earliest oceans with silicon: magnitudes of isotopic fractionation, Vroon, P.Z.; id_orcid, Geilert, S., Vroon, P.Z.   +13 more
core   +1 more source

Beyond Furnaces: Harnessing In Situ Joule Heating for Efficient C1 Catalysis

Carbon Energy, EarlyView.
Joule‐heated catalysis directly converts electrical energy into localized heat within conductive catalysts, overcoming the heat‐transfer limitations of conventional furnaces. This review summarizes recent advances in C1 molecule conversion, including CO2 methanation, reforming for hydrogen production, and HCHO/CO oxidation, while highlighting ...
Xue Kong, Tiantian Su, Faiza Meharban, Shengbin Cao, Jingsan Xu, Chao Lin, Xiaopeng Li, Yejian Xue, Wei Luo   +8 more
wiley   +1 more source

Redefining the Nitrogen Cycle Through Electronic Configuration Driven Electrocatalysis for Low Carbon Energy

Carbon Energy, EarlyView.
This review reveals how electronic configuration engineering governs the entire electrocatalytic nitrogen cycle, providing structure‐informed insights into reaction selectivity, catalytic durability, and sustainable nitrogen utilization across energy and environmental systems. ABSTRACT The global nitrogen cycle is essential to food production, chemical
Jiamu Feng, Linai Zhou, Mincan Yang, Aoxiang Zhu, Zengfeng Wei, Weilin Xu, Jia Li, Jun Wan   +7 more
wiley   +1 more source

Versatile nitrate-respiring heterotrophs are previously concealed contributors to sulfur cycle

Nature Communications
Heterotrophic denitrifiers play crucial roles in global carbon and nitrogen cycling. However, their inability to oxidize sulfide renders them vulnerable to this toxic molecule, which inhibits the key enzymatic reaction responsible for reducing nitrous ...
Bo Shao, Yuan-Guo Xie, Long Zhang, Yang Ruan, Bin Liang, Ruochen Zhang, Xijun Xu, Wei Wang, Zhengda Lin, Xuanyuan Pei, Xueting Wang, Lei Zhao, Xu Zhou, Xiaohui Wu, Defeng Xing, Aijie Wang, Duu-Jong Lee, Nanqi Ren, Donald E. Canfield, Brian P. Hedlund, Zheng-Shuang Hua, Chuan Chen   +21 more
doaj   +1 more source

Sulfur isotope composition in the Plesenci native sulfur mineral deposit, Republic of Macedonia

, 2015
For the first time, we present our findings of the origin of sulfur in the gypsum and native sulfur within the Plesenci deposit, R.Macedonia. There we made a series of complex research and analysis of the light isotope (32S), heavy isotope (34S), and ...
Gjorgjiev, Lazar, Tasev, Goran, Gjorgiev, Lazar, Serafimovski, Todor   +3 more
core   +1 more source

Durable Fuel Cell Cathode Enabled by Pt Embedded Nanoscale Carbon Network via a Scalable Process

Carbon Energy, EarlyView.
Platinum nanoparticles embedded nanoscale carbon network (Pt‐e‐Cn) are developed via a scalable flame spray pyrolysis process. Proton exchange membrane fuel cells (PEMFC) employing mesoporous Pt‐e‐Cn cathode electrocatalysts exhibit exceptional durability without compromising performance.
Suriya Venkatesan, Jens Mitzel, Tobias Morawietz, Emmanuelle Boehm‐Courjault, Deven P. Estes, Laure Guétaz, Indro Biswas, Jan Van Herle, Karsten Wegner, Pawel Gazdzicki, Kaspar Andreas Friedrich   +10 more
wiley   +1 more source