Results 31 to 40 of about 1,608,801 (307)

Ultraviolet-visible spectroscopy for food quality analysis

open access: yes, 2019
Chandra, SS ORCiD: 0000-0002-4257-5860; Chapman, JM ORCiD: 0000-0002-9850-0403; Cozzolino, D ORCiD: 0000-0001-6247-8817; Power, A ORCiD: 0000-0002-7119-8486The most commonly used spectroscopic techniques in food analysis are atomic and molecular ...
James Chapman (9786539)   +15 more
core   +2 more sources

Structures of mycobacterial 3‐methylcrotonyl‐CoA carboxylase reveal carrier‐domain translocation between catalytic sites

open access: yesFEBS Letters, EarlyView.
Mycobacterial 3‐methylcrotonyl‐CoA carboxylase uses a mobile biotin‐carrying domain to shuttle a carboxyl group between two catalytic sites, enabling carboxylation of 3‐methylcrotonyl‐CoA during leucine breakdown. Cryo‐electron microscopy captures the carrier at both sites and reveals an inward loop movement that may prevent futile rebinding to the ...
Ajit Yadav   +2 more
wiley   +1 more source

The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation

open access: yesFEBS Letters, EarlyView.
Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge   +6 more
wiley   +1 more source

Autler–Townes splitting in the trap-loss fluorescence spectroscopy due to single-step direct Rydberg excitation of cesium cold atomic ensemble

open access: yesAIP Advances, 2023
We experimentally investigate trap-loss spectra of the cesium 6S1/2(F = 4) → 71P3/2 Rydberg transition by combining the cesium atomic magneto-optical trap with the narrow-linewidth, continuously tunable 318.6 nm ultraviolet laser. Specifically, the atoms
Xin Wang   +8 more
doaj   +1 more source

Application of Ultraviolet (UV) spectrophotometry in the assessment of membrane bioreactor performance for monitoring water and wastewater treatment

open access: yes, 2011
Ultraviolet (UV) spectroscopy has been widely used in monitoring water and wastewater treatment. In this study UV spectroscopy was used to investigate fouling development on the membrane surface of membrane bioreactors.
Kandasamy, Jaya   +8 more
core   +1 more source

Ultraviolet Absorption Cross-Sections of Ammonia at Elevated Temperatures for Nonintrusive Quantitative Detection in Combustion Environments [PDF]

open access: yes, 2021
Ammonia (NH3) is regarded as an important nitrogen oxides (NOx) precursor and also as an effective reductant for NOx removal in energy utilization through combustion, and it has recently become an attractive non-carbon alternative fuel.
Li, Shen   +12 more
core   +1 more source

How structural disorder and polyelectrolyte properties of prothymosin α enable its large interactome

open access: yesFEBS Letters, EarlyView.
In this review, complexes of the fully disordered and highly negatively charged prothymosin α are collected, described, and discussed. Linked to its poly‐electrostatic character, prothymosin α engages a large interactome through multiple different binding modes ranging from fully disordered complexes to short linear motif (SLiM)‐driven interactions ...
Ketty C. Tamburrini   +3 more
wiley   +1 more source

Ultraviolet-visible spectroscopy of graphene oxides

open access: yesAIP Advances, 2012
Dispersions of few-layer (1-3 layers), multi-layer (4-10 layers) and thick-layer (>10 layers) graphene oxide (GO) were prepared by a modified Hummers method with different mass ratios of KMnO4 to graphite.
Qi Lai   +4 more
doaj   +1 more source

Ultraviolet absorption spectroscopy of all the samples.

open access: yes, 2019
Ultraviolet absorption spectroscopy of all the samples.
Yujue Zhou (8082341)   +4 more
core   +1 more source

Precision two-photon-excitation spectroscopy of atomic and molecular Rydberg states

open access: yes, 2020
A tunable, narrowband laser system, developed for high-resolution ultraviolet spectroscopy of atoms and molecules and previously applied to two-photon excitation of rare-gas atoms, now offers prospects for new measurements of atmospheric molecules such ...
Orr, Brian J   +3 more
core   +1 more source

Home - About - Disclaimer - Privacy