Results 191 to 200 of about 153,886 (318)

Metal‐Free, Selective Ortho‐Deuteration of N‐Heterocyclic Oxides

open access: yesAdvanced Synthesis &Catalysis, Volume 367, Issue 6, March 18, 2025.
Abstract Replacing hydrogen with deuterium raises the activation energy for C−D bond cleavage. This approach has gained attention in drug design, especially to protect the ortho‐position of pyridines, which are susceptible to enzymatic oxidation.
Arianna Montoli   +5 more
wiley   +1 more source

Advances in supercritical fluid chromatography. [PDF]

open access: yesAnal Sci Adv, 2021
Nováková L, Eeltink S.
europepmc   +1 more source

Sustainable Hydrogen Production by Glycerol and Monosaccharides Catalytic Acceptorless Dehydrogenation (AD) in Homogeneous Phase

open access: yesChemSusChem, Volume 18, Issue 6, March 15, 2025.
Sustainable hydrogen production can be obtained from hydogen‐rich biomass‐derived organic molecules through Acceptorless Dehydrogenation (AD) reactions. Glycerol and sugars are available in large quantities from industry and can be successfully used as substrates in AD protocols, in the presence of tailored, selective, easily tunable and thermally ...
Sylwia Kostera, Luca Gonsalvi
wiley   +1 more source

Processing-bioprocessing of oilseed rape in bioenergy production and value added utilization of remaining seed components [PDF]

open access: yes, 2007
Cruciferous oilseed crops accumulate relatively high concentrations of oil, proteins and dietary fibres (DF) in their seeds, in addition to bioactive components as glucosinolates and myrosinase isoenzymes (thioglucohydrolase; EC 3.2.1.147). When mixed in
Bagger, Christian   +5 more
core  

Development of supercritical technology to obtain improved functional dietary fiber for the valorization of broccoli by‐product

open access: yesJournal of the Science of Food and Agriculture, Volume 105, Issue 4, Page 2203-2214, 15 March 2025.
Abstract Background This research aimed to enhance the functional value of dietary fiber from broccoli leaves using supercritical fluid technology. By optimizing pressure, temperature, and time parameters through response surface methodology, the study sought to improve the bioactive properties of the fiber and develop a predictive model for its ...
María Ángeles Rivas   +5 more
wiley   +1 more source

Detection of microbes in the subsurface [PDF]

open access: yes
The search for evidence of microbial life in the deep subsurface of Earth has implications for the Mars Rover Sampling Return Missions program. If suitably protected environments can be found on Mars then the instrumentation to detect biomarkers could be
Tunlid, Anders, White, David C.
core   +1 more source

Analysis of mass-limited mixtures using supercritical-fluid chromatography and microcoil NMR [PDF]

open access: green, 2015
Michael C. D. Tayler   +3 more
openalex   +1 more source

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