Results 31 to 40 of about 1,340,936 (303)

Fluorescence quenching near small metal nanoparticles

open access: yes, 2012
We develop a microscopic model for fluorescence of a molecule (or semiconductor quantum dot) near a small metal nanoparticle. When a molecule is situated close to metal surface, its fluorescence is quenched due to energy transfer to the metal. We perform
Pustovit, Vitaliy N.   +1 more
core   +1 more source

Charge transfer transitions in glasses - Attempt of a systematic review

open access: yesOptical Materials: X, 2021
In glasses, even low levels of dopants or impurities can give rise to very intense and broad charge transfer transitions from ligands (e.g. oxygen or fluorine ions) to the metal ion (L→M), absorbing strongly in the short wavelength ultraviolet.
Doris Möncke, Doris Ehrt
doaj   +1 more source

Acoustic signal analysis for classification of transfer mode in GMAW by noncontact sensing technique [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2006
The objective in this paper is to investigate acoustic signal emitted during metal transfer in gas metal arc welding process (GMAW). Short circuit, globular transfer and spray transfer were classified by using dynamic microphone.
Poopat, B., Warinsiriruk, E.
doaj  

Missing linkers : an alternative pathway to UiO-66 electronic structure engineering [PDF]

open access: yes, 2017
UiO-66 is a promising metal-organic framework for photocatalytic applications. However, the ligand-to-metal charge transfer of an excited electron is inefficient in the pristine material.
De Vos, Arthur   +4 more
core   +3 more sources

Mapping the evolution of mitochondrial complex I through structural variation

open access: yesFEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin   +2 more
wiley   +1 more source

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

open access: yesFEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe   +3 more
wiley   +1 more source

Numerical simulation study on heat transfer enhancement of a heat exchanger wrapped with metal foam

open access: yesEnergy Reports, 2022
Tube bank wrapped with metal foam is a new compact heat exchanger with high specific surface area. The thermo-hydraulic properties of metal foam is key parameters to determine the structure of the tube bank covered on metal foam. Previous studies focused
Kang Chen   +3 more
doaj   +1 more source

Cell wall target fragment discovery using a low‐cost, minimal fragment library

open access: yesFEBS Letters, EarlyView.
LoCoFrag100 is a fragment library made up of 100 different compounds. Similarity between the fragments is minimized and 10 different fragments are mixed into a single cocktail, which is soaked to protein crystals. These crystals are analysed by X‐ray crystallography, revealing the binding modes of the bound fragment ligands.
Kaizhou Yan   +5 more
wiley   +1 more source

Reversing the charge transfer between platinum and sulfur-doped carbon support for electrocatalytic hydrogen evolution

open access: yesNature Communications, 2019
The charge transfer between metal and support is significant for catalysis, but little attention has been focused on charge transfer tuned by metal size.
Qiang-Qiang Yan   +8 more
doaj   +1 more source

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

open access: yesFEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee   +3 more
wiley   +1 more source

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