Results 101 to 110 of about 1,839,261 (340)

Confining Quantum Dots Within Covalent Organic Framework Cages for Coupled CO2 Photoreduction and Value‐Added Chemical Synthesis

open access: yesAdvanced Materials, EarlyView.
A 3D/0D S‐scheme heterojunction photocatalyst is constructed by spatially confining ZnSe quantum dots within covalent organic framework (COF) porous cages, enabling coupled CO2 photoreduction and value‐added chemical synthesis. COF porous cages serve as nanoreactors, enriching reactant concentrations, and the S‐scheme heterojunction facilitates charge ...
Jingzhao Cheng   +9 more
wiley   +1 more source

A set of engineered Escherichia coli expression strains for selective isotope and reactivity labeling of amino acid side chains and flavin cofactors.

open access: yesPLoS ONE, 2013
Biological reactions are facilitated by delicate molecular interactions between proteins, cofactors and substrates. To study and understand their dynamic interactions researchers have to take great care not to influence or distort the object of study. As
Jennifer Mehlhorn   +5 more
doaj   +1 more source

Isotopic Labelling of Tryptophan and Tryptophan Residues in Polypeptides. [PDF]

open access: bronze, 1969
Børge Bak   +5 more
openalex   +1 more source

Stable isotope-labeling studies in metabolomics: new insights into structure and dynamics of metabolic networks.

open access: yesBioanalysis, 2014
The rapid emergence of metabolomics has enabled system-wide measurements of metabolites in various organisms. However, advances in the mechanistic understanding of metabolic networks remain limited, as most metabolomics studies cannot routinely provide ...
Achuthanunni Chokkathukalam   +4 more
semanticscholar   +1 more source

A Dual‐Emissive DNA‐Templated Silver Nanocluster with Near‐Infrared I and II Emission

open access: yesAdvanced Optical Materials, Volume 13, Issue 8, March 13, 2025.
This study presents a dual‐emissive DNA‐stabilized silver nanocluster with a nanosecond‐lived NIR‐I emission band and a microsecond‐lived NIR‐II emission band. Mass spectrometry establishes that the nanocluster has molecular formula (DNA)2[Ag17]11+. DNA sequence variations reveal critical nucleobases for stabilization, and modifications at the DNA 5 ...
Anna Gonzàlez‐Rosell   +6 more
wiley   +1 more source

Microlasers Made Entirely from Edible Substances

open access: yesAdvanced Optical Materials, EarlyView.
Several types of microlasers made completely out of edible substances are developed. They can be embedded directly into edible products and enable the sensing of various parameters, including sugar concentration, pH, the presence of bacteria, and exposure to too‐high temperatures.
Abdur Rehman Anwar   +4 more
wiley   +1 more source

Relative Quantitation of Glycopeptides Based on Stable Isotope Labeling Using MALDI-TOF MS

open access: yesMolecules, 2014
We have developed an effective, sensitive method for quantitative glycopeptide profiling using stable isotope labeling and MALDI-TOF mass spectrometry (MS).
Masaki Kurogochi, Junko Amano
doaj   +1 more source

Advances and Outlook of Nickel‐Based MOFs–LDHs Materials for Energy Conversion

open access: yesAdvanced Sustainable Systems, EarlyView.
In this graphical abstract, we present the pivotal gap between the activity and stability parameters as far as intergrated Ni‐based MOF/LDF electrocatalysts are concerned. For large scale application, these two parameters should be optimized and furthermore balanced in order to promote sustainable electrocatalytic hydrogen production.
Lincoln Einstein Kengne Fotso   +4 more
wiley   +1 more source

NAIL-MS reveals the repair of 2-methylthiocytidine by AlkB in E. coli

open access: yesNature Communications, 2019
Bacterial tRNA is modified by thiolation of nucleosides. Here the authors identify 2-methylthiocytidine in bacterial tRNA using nucleic acid isotope labeling coupled mass spectrometry.
Valentin F. Reichle   +4 more
doaj   +1 more source

iMS2Flux – a high–throughput processing tool for stable isotope labeled mass spectrometric data used for metabolic flux analysis

open access: yesBMC Bioinformatics, 2012
Background Metabolic flux analysis has become an established method in systems biology and functional genomics. The most common approach for determining intracellular metabolic fluxes is to utilize mass spectrometry in combination with stable isotope ...
Poskar C Hart   +5 more
doaj   +1 more source

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