Results 41 to 50 of about 24,221 (214)

Bringing Nitric Oxide to the Molybdenum World—A Personal Perspective

Molecules, 2023
Molybdenum-containing enzymes of the xanthine oxidase (XO) family are well known to catalyse oxygen atom transfer reactions, with the great majority of the characterised enzymes catalysing the insertion of an oxygen atom into the substrate. Although some
Luisa B. Maia
doaj   +1 more source

Bioinspired Interfacial Hydration Engineering via Metal–Organic Frameworks for Efficient Nitrate‐To‐Ammonia Conversion in Neutral Media

Advanced Science, EarlyView.
Inspired by Nitrite reductase, a metal–organic framework overlayer is introduced to regulate the interfacial hydration microenvironment on Cu electrodes, enriching hydrated K+ species that act as efficient proton donors. This strategy enables nitrate‐to‐ammonia conversion with near‐unity selectivity at industrial‐level current densities in neutral ...
Yuyin Mao, Minghui Zhang, Xiangdong Xue, Chengyu Guo, Jian Liu   +4 more
wiley   +1 more source

Protein complex formation during denitrification by Pseudomonas aeruginosa

Microbial Biotechnology, 2017
Summary The most efficient means of generating cellular energy is through aerobic respiration. Under anaerobic conditions, several prokaryotes can replace oxygen by nitrate as final electron acceptor.
José Manuel Borrero‐de Acuña, Kenneth N. Timmis, Martina Jahn, Dieter Jahn   +3 more
doaj   +1 more source

Light‐Activated Ruthenium Nanoclusters Reprogram the Metabolic‐Quorum Sensing Axis for Precision Periodontitis Therapy

Advanced Science, EarlyView.
Under 660 nm visible light, Ru NCs efficiently photocatalyze nitrate‐to‐ammonium conversion and modulate oral nitrogen metabolism. They precisely perturb Veillonella parvula, block its key support to Porphyromonas gingivalis, and exert an “inhibiting without killing” antivirulence effect.
Jing Zhou, Xiaolin Sun, Chengyu Liu, Yujia Shi, Meiqi Li, Meng Bo, Jingjie Zhai, Chunyan Li, Zhennan Wu, Xue Bai, Lin Wang   +10 more
wiley   +1 more source

Production of Nitric Oxide and Nitrosylleghemoglobin Complexes in Soybean Nodules in Response to Flooding

Molecular Plant-Microbe Interactions, 2010
Nitric oxide (NO) has gained interest as a major signaling molecule during plant development and in response to environmental cues. Formation of NO during symbiotic interactions has been reported, but the role and sources of NO in nodules remain unclear.
Cristina Sánchez, Andrew J. Gates, Georgina E. Meakin, Toshiki Uchiumi, Lourdes Girard, David J. Richardson, Eulogio J. Bedmar, María J. Delgado   +7 more
doaj   +1 more source

Nano‐Backpack Engineered Probiotics with Reactive Oxygen Species–Responsive Tungsten Release for Synergistic Therapy of Inflammatory Bowel Disease

Advanced Science, EarlyView.
An integrated probiotic system is engineered to execute a programmed therapeutic cascade against inflammatory bowel disease. Upon pathological signals, the system sequentially performs ROS scavenging, tungsten release, and selective pathogen suppression, thereby breaking the oxidative stress–dysbiosis cycle to remodel gut microbiota and reinforce ...
Yang Yang, Liucan Wang, Guoqing Chen, Yuanling Zhang, Jiarui Shi, Wenzhe Fan, Min Yu, Jixi Zhang, Hua Yang   +8 more
wiley   +1 more source

A novel mechanism for dissimilatory nitrate reduction to ammonium in Acididesulfobacillus acetoxydans

mSystems
The biological route of nitrate reduction has important implications for the bioavailability of nitrogen within ecosystems. Nitrate reduction via nitrite, either to ammonium (ammonification) or to nitrous oxide or dinitrogen (denitrification), determines
Reinier A. Egas, Julia M. Kurth, Sjef Boeren, Diana Z. Sousa, Cornelia U. Welte, Irene Sánchez-Andrea   +5 more
doaj   +1 more source

BIOTECHNOLOGY STUDY TO REMOVE NITRATE AND NATRATE BY USING PSEUDOMONAS AERUGINOSA STRAINS ISOLATED FROM WEST WATER IN BAGHDAD CITY [PDF]

مجلة جامعة الانبار للعلوم الصرفة, 2014
This isolated genus has a considerable and important value in biotechnological resources and applications,. These bacteria use much more efficiently the organic substances small molecules units such nitrate, nitrite and used in biosorption for heavy ...
ALI. H HAMMADI, SUFYAN M. SHARTOH, AMAL Y. ALI   +2 more
doaj   +1 more source

Nitrate Reductase Regulates Expression of Nitrite Uptake and Nitrite Reductase Activities in Chlamydomonas reinhardtii [PDF]

Plant Physiology, 1992
In Chlamydomonas reinhardtii mutants defective at the structural locus for nitrate reductase (nit-1) or at loci for biosynthesis of the molybdopterin cofactor (nit-3, nit-4, or nit-5 and nit-6), both nitrite uptake and nitrite reductase activities were repressed in ammonium-grown cells and expressed at high amounts in nitrogen-free media or in media ...
A, Galván, J, Cárdenas, E, Fernández
openaire   +2 more sources

Uncovering Cystic Fibrosis Carrier: Insights From a Heterozygous CFTR‐F508del Rabbit Model

International Forum of Allergy &Rhinology, EarlyView.
ABSTRACT Background Chronic rhinosinusitis (CRS) is a heterogeneous inflammatory disorder frequently associated with impaired mucociliary clearance and bacterial infection. Individuals carrying a single cystic fibrosis transmembrane conductance regulator (CFTR) mutation exhibit partial CFTR dysfunction and are increasingly recognized as being at risk ...
Do‐Yeon Cho, Alexis E. McFeely, Daniel Skinner, Shaoyan Zhang, Justin Hedvat, Weslee Ping‐ay, Daniel M. Beswick, Justin H. Turner, Bradford A. Woodworth, Jie Xu   +9 more
wiley   +1 more source