Results 101 to 110 of about 4,912 (248)

A multiplexed targeted assay for high-throughput quantitative analysis of serum methylamines by ultra performance liquid chromatography coupled to high resolution mass spectrometry [PDF]

open access: yes, 2016
Methylamines are biologically-active metabolites present in serum and urine samples, which play complex roles in metabolic diseases. Methylamines can be detected by proton nuclear magnetic resonance (NMR), but specific methods remain to be developed for ...
Kadar, H   +9 more
core   +1 more source

Defect Passivation via Plasma Modification of Lead Halide Perovskite Thin Films

open access: yesProgress in Photovoltaics: Research and Applications, Volume 34, Issue 7, Page 813-820, July 2026.
We demonstrate that exposure of perovskite thin films to diffuse coplanar surface barrier discharge nitrogen plasma leads to an increase in photoluminescence, attributed to reduced defect densities. This results in implied open‐circuit voltage improvement of up to 80 mV and finalized solar cell open‐circuit gains up to 60 mV.
Ales Vlk   +12 more
wiley   +1 more source

α‑Arylation of Saturated Azacycles and N‑Methylamines via Palladium(II)-Catalyzed C(sp3)–H Coupling

open access: yes, 2015
Pd­(II)-catalyzed α-C­(sp3)–H arylation of pyrrolidines, piperidines, azepanes, and N-methylamines with arylboronic acids has been developed for the first time. This transformation is applicable to wide arrays of pyrrolidines and boronic acids, including
Jillian E. Spangler (1336173)   +4 more
core   +1 more source

Genetic resources for methane production from biomass described with gene ontology

open access: yesFrontiers in Microbiology, 2014
Methane (CH4) is a valuable fuel, constituting 70-95% of natural gas, and a potent greenhouse gas. Release of CH4 into the atmosphere contributes to climate change.
Endang ePurwantini   +8 more
doaj   +1 more source

Reductive Methylation: An Alternative to Lysine → Arginine Mutagenesis

open access: yesJournal of Peptide Science, Volume 32, Issue 7, July 2026.
Replacing lysine with arginine, the standard genetic approach to eliminate amine reactivity, alters physicochemical properties and leaves the N terminus unprotected. Here, reductive methylation is characterized as a conservative chemical alternative. Complete dimethylation of human ribonucleases preserves thermostability, protein–protein interaction ...
Oscar J. Molina   +4 more
wiley   +1 more source

Activity parameters of lysozyme in the presence and absence of urea, methylamines and urea-methylamine-[NaCl]b mixture at pH 7.0 and 25°C.

open access: yes, 2015
bEstimated amount of salt required for perfect counteraction, determined from thermodynamic measurementsActivity parameters of lysozyme in the presence and absence of urea, methylamines and urea-methylamine-[NaCl]b mixture at pH 7.0 and 25°C.
Faizan Ahmad (54871)   +5 more
core   +1 more source

Vibrational structures of predissociating methylamines (CH3NH2 and CH3ND2) in à states: Free internal rotation of CH3 with respect to NH2

open access: yes, 2002
Resonantly-enhanced one-color two-photon (1+1) ionization spectra of jet-cooled methylamines (CH3NH2 and CH3ND2) reveal the vibrational structures of these molecules in predissociative A states. Rotational fine structure is clearly resolved for CH3ND2 at
Kyo-Won Choi   +7 more
core   +1 more source

Viral and metabolic controls on high rates of microbial sulfur and carbon cycling in wetland ecosystems

open access: yesMicrobiome, 2018
Background Microorganisms drive high rates of methanogenesis and carbon mineralization in wetland ecosystems. These signals are especially pronounced in the Prairie Pothole Region of North America, the tenth largest wetland ecosystem in the world ...
Paula Dalcin Martins   +7 more
doaj   +1 more source

Renewable and Biocompatible Lecithin as an Efficient Organocatalyst for Reductive Conversion of CO2 with Amines to Formamides and Methylamines

open access: yes, 2018
Transformation of carbon dioxide (CO2) into valuable chemicals is of great importance, and development of novel and efficient catalysts is crucial.
Zhenpeng Wang (5628068)   +17 more
core   +1 more source

Development of a Brain‐Penetrant Nurr1 Agonist Tool

open access: yesChemMedChem, Volume 21, Issue 11, 15 June 2026.
Nuclear receptor‐related 1 (Nurr1) is a ligand‐activated transcription factor with neuroprotective properties, thought to hold therapeutic potential in neurodegeneration. Here, we developed a potent, brain‐penetrant Nurr1 agonist to study the effects of pharmacological Nurr1 activation in the CNS in vivo. The ligand‐sensing transcription factor nuclear
Jan Vietor   +7 more
wiley   +1 more source

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