Results 61 to 70 of about 50,424 (297)

An integrated biochemical system for nitrate assimilation and nitric oxide detoxification in Bradyrhizobium japonicum [PDF]

open access: yes, 2016
Rhizobia are recognized to establish N(2)-fixing symbiotic interactions with legume plants. Bradyrhizobium japonicum, the symbiont of soybeans, can denitrify and grow under free-living conditions with nitrate (NO(3)(−)) or nitrite (NO(2)(−)) as sole ...
Alderton   +69 more
core   +1 more source

Machine‐Learning‐Aided Advanced Electrochemical Biosensors

open access: yesAdvanced Materials, EarlyView.
Electrochemical biosensors are highly sensitive, portable, and versatile. Advanced nanomaterials enhance their performance, while machine learning (ML) improves data analysis, minimizes interference, and optimizes sensor design. Despite progress in both fields, their combined potential in diagnostics remains underexplored.
Andrei Bocan   +9 more
wiley   +1 more source

Decreased nitrite reductase activity of deoxyhemoglobin correlates with platelet activation in hemoglobin E/ß-thalassemia subjects. [PDF]

open access: yesPLoS ONE, 2018
Nitric oxide (NO) can be generated from nitrite by reductase activity of deoxygenated hemoglobin (deoxyHb) apparently to facilitate tissue perfusion under hypoxic condition.
Attaphon Chamchoi   +8 more
doaj   +1 more source

Venus' Mass Spectra Show Signs of Disequilibria in the Middle Clouds [PDF]

open access: yes, 2020
We present a re-examination of mass spectral data obtained from the Pioneer Venus Large Probe Neutral Mass Spectrometer. Our interpretations of differing trace chemical species are suggestive of redox disequilibria in Venus' middle clouds. Assignments to the data (at 51.3 km) include phosphine, hydrogen sulfide, nitrous acid, nitric acid, carbon ...
arxiv   +1 more source

Technological activities of Staphylococcus carnosus and Staphylococcus simulans strains isolated from fermented sausages [PDF]

open access: yes, 2005
The aim of this study was to determine the technological properties of 2 strains of Staphylococcus simulans (Ssm12, Ssm21) and 4 strains of S. carnosus (SC28, SC31, SC54 and SC55) for the selection of a potential starter cultures to employ in the ...
BLAIOTTA, GIUSEPPE   +4 more
core   +1 more source

The reaction of Pseudomonas nitrite reductase and nitrite. A stopped-flow and EPR study. [PDF]

open access: yesJournal of Biological Chemistry, 1990
The reaction between reduced Pseudomonas nitrite reductase and nitrite has been studied by stopped-flow and rapid-freezing EPR spectroscopy. The interpretation of the kinetics at pH 8.0 is consistent with the following reaction mechanism (where k1 and k3 much greater than k2).
SILVESTRINI MC   +3 more
openaire   +4 more sources

Nanostructured 316L Stainless Steel Stent Surfaces Improve Corrosion Resistance, and Enhance Endothelization and Hemocompatibility

open access: yesAdvanced Materials Interfaces, EarlyView.
This study investigates the impact of nanostructured surface modification on corrosion resistance, HUVEC functions, and platelet interactions of 316L SS for cardiovascular stents. Nanostructured surfaces enhanced HUVEC proliferation, migration, and angiogenesis‐related gene expression while reducing platelet adhesion and hemolysis.
Yasar Kemal Erdogan   +2 more
wiley   +1 more source

Protein complex formation during denitrification by Pseudomonas aeruginosa

open access: yesMicrobial 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   +3 more
doaj   +1 more source

Molecular underpinnings of nitrite effect on CymA-dependent respiration in Shewanella oneidensis

open access: yesFrontiers in Microbiology, 2016
Shewanella exhibit a remarkable versatility of respiration, with a diverse array of electron acceptors (EAs). In environments where these bacteria thrive, multiple EAs are usually present.
Miao Jin   +4 more
doaj   +1 more source

Modulation of Lanthanide Luminescence with the Mechanical Bond: Antenna‐Emitter Confinement in a Compact [2]Rotaxane

open access: yesAngewandte Chemie International Edition, Accepted Article.
Luminescent emitters based on lanthanide ions are of ubiquitous importance in the biological sciences, but typically need sensitisation from a covalently attached adjacent chromophore – an “antenna” – to have suitable emission intensities. Here we show that the mechanical bond can be used to connect the antenna to the emitter, providing unique dynamic ...
Anja Ramström   +5 more
wiley   +1 more source

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