Mobility of excess electrons andO2−formation in dense fluid helium

1975 ◽  
Vol 12 (8) ◽  
pp. 3420-3427 ◽  
Author(s):  
James A. Jahnke ◽  
M. Silver ◽  
J. P. Hernandez
Keyword(s):  
Dense Fluid ◽  
Excess Electrons

scholarly journals Over-expression of an electron transport protein OmcS provides sufficient NADH for d-lactate production in cyanobacterium

2021 ◽  
Vol 14 (1) ◽  
Author(s):  
Hengkai Meng ◽  
Wei Zhang ◽  
Huawei Zhu ◽  
Fan Yang ◽  
Yanping Zhang ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Electron Transport ◽  
Lactate Production ◽  
Transport Protein ◽  
Dominant Form ◽  
Photosynthetic Production ◽  
Reducing Equivalent ◽  
Excess Electrons ◽  
Novel Strategy ◽  
Electron Transport Protein

Abstract Background An efficient supply of reducing equivalent is essential for chemicals production by engineered microbes. In phototrophic microbes, the NADPH generated from photosynthesis is the dominant form of reducing equivalent. However, most dehydrogenases prefer to utilize NADH as a cofactor. Thus, sufficient NADH supply is crucial to produce dehydrogenase-derived chemicals in cyanobacteria. Photosynthetic electron is the sole energy source and excess electrons are wasted in the light reactions of photosynthesis. Results Here we propose a novel strategy to direct the electrons to generate more ATP from light reactions to provide sufficient NADH for lactate production. To this end, we introduced an electron transport protein-encoding gene omcS into cyanobacterium Synechococcus elongatus UTEX 2973 and demonstrated that the introduced OmcS directs excess electrons from plastoquinone (PQ) to photosystem I (PSI) to stimulate cyclic electron transfer (CET). As a result, an approximately 30% increased intracellular ATP, 60% increased intracellular NADH concentrations and up to 60% increased biomass production with fourfold increased d-lactate production were achieved. Comparative transcriptome analysis showed upregulation of proteins involved in linear electron transfer (LET), CET, and downregulation of proteins involved in respiratory electron transfer (RET), giving hints to understand the increased levels of ATP and NADH. Conclusions This strategy provides a novel orthologous way to improve photosynthesis via enhancing CET and supply sufficient NADH for the photosynthetic production of chemicals.

scholarly journals Physics-Guided Deep Learning for Drag Force Prediction in Dense Fluid-Particulate Systems

Big Data ◽  
2020 ◽  
Vol 8 (5) ◽  
pp. 431-449 ◽  
Author(s):  
Nikhil Muralidhar ◽  
Jie Bu ◽  
Ze Cao ◽  
Long He ◽  
Naren Ramakrishnan ◽  
...  
Keyword(s):  
Deep Learning ◽  
Drag Force ◽  
Force Prediction ◽  
Dense Fluid ◽  
Particulate Systems

CATALYTIC OXIDATION OF MODEL WASTE AROMATIC HYDROCARBONS IN A DENSE FLUID

1991 ◽  
Vol 110 (1) ◽  
pp. 85-97 ◽  
Author(s):  
TIEN-HAI PANG ◽  
MINGHUA YE ◽  
F. CARL KNOPF ◽  
KERRY M. DOOLEY
Keyword(s):  
Catalytic Oxidation ◽  
Aromatic Hydrocarbons ◽  
Dense Fluid

An efficient fully atomistic potential model for dense fluid methane

2016 ◽  
Vol 1117 ◽  
pp. 192-200 ◽  
Author(s):  
Chuntao Jiang ◽  
Jie Ouyang ◽  
Xin Zhuang ◽  
Lihua Wang ◽  
Wuming Li
Keyword(s):  
Potential Model ◽  
Dense Fluid ◽  
Atomistic Potential Model

Trapping of excess electrons at the microhydrated protonated amino groups in proteins

2012 ◽  
Vol 136 (10) ◽  
pp. 105101 ◽  
Author(s):  
Wenchao Li ◽  
Zhenwei Zhang ◽  
Hongfang Yang ◽  
Xiuxiu Wu ◽  
Jinxiang Liu ◽  
...  
Keyword(s):  
Amino Groups ◽  
Excess Electrons

Raman band shapes and dynamics of molecular motion for SF6in the supercritical dense fluid region

1981 ◽  
Vol 75 (4) ◽  
pp. 1612-1622 ◽  
Author(s):  
T. W. Żerda ◽  
J. Schroeder ◽  
J. Jonas
Keyword(s):  
Molecular Motion ◽  
Raman Band ◽  
Dense Fluid
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