Results 111 to 120 of about 143,294 (307)

Comparison of immunochromatography, thin layer chromatography and gas chromatography techniques for drug detection in urine

open access: yesمجله علمی دانشگاه علوم پزشکی کردستان, 2021
Background and Aim: Nowadays, drug abuse is a major problem in societies, and detection of drugs in urine is very important.  In general, immunochromatography (ICG) and thin-layer chromatography (TLC) are routine methods for the detection of drugs in ...
Mohammad Ahmadia khosroshahi   +1 more
doaj  

Mechanochemical Amidation Mediated by 1,1’‐Oxalyldiimidazole for the Synthesis of Agrochemicals

open access: yesChemistry – A European Journal, EarlyView.
Mechanochemical amidation using 1,1'‐oxalyldiimidazole (ODI) overcomes limitations of 1,1’‐carbonyl diimidazole (CDI) as coupling agent by enabling the efficient mechanochemical synthesis of three marketed agrochemicals from deactivated carboxylic acids.
Andrea Casagrande   +6 more
wiley   +1 more source

Exploring Calixarene‐Based Pseudorotaxane Architectures: Threading Ammonium Axles With an Exo‐Rim π‐Functionalized Calix[6]Arene Macrocycle

open access: yesChemistry – A European Journal, EarlyView.
This research presents a novel 1,4‐π‐functionalized calix[6]arene with enhanced interactions with dialkylammonium axles. We investigate threading behavior in CDCl3, highlighting how exo‐rim π‐functionalization affects binding affinity and stereoselectivity.
Veronica Iuliano   +7 more
wiley   +1 more source

Metal‐Ion Regulated Light‐Free Z→E Isomerization of Azobenzene Glycomacrocycle

open access: yesChemistry – A European Journal, EarlyView.
Metal ion‐catalyzed Z→E isomerization of photoswitchable azobenzene glycomacrocycle: A new azobenzene‐based glycomacrocycle is capable of forming a 1:1 complex with divalent metal ions in both E‐ and Z‐isomers. The complexes undergo light‐free Z→E isomerization in a timescale spanning from seconds to weeks.
Yang Zhou   +4 more
wiley   +1 more source

ASSESSMENT OF VARIOUS DIAGNOSTIC PARAMETERS IN CASES OF ACUTE APPENDICITIS [PDF]

open access: yesPerspectives In Medical Research, 2019
Introduction:Acute appendicitis is a common surgical emergency and appendectomy is one of the frequently done emergency surgical operations. Its diagnosis stills remain elusive due to its varying presentation.
Dr. AbbadiVenkat Mohan Reddy, Dr.MohdInayatulla Khan
doaj  

TLC en el sector lechero de Ubaté

open access: yes, 2015
Este trabajo cuenta las causas y consecuencias que ha tenido la entrada del TLC de Estados Unidos con Colombia, viéndose afectado el sector Lechero de Ubaté como fuente principal de abastecimiento para municipios y ciudades de nuestra nación; como un ...
Pinto Montenegro, Angelica Geraldin   +2 more
core  

Synthesis and characterization of amphiphilic nitroxide 1,1,3,3–tetraethylisoindoline–2–oxyl–5–sodium sulfonate (TEIOSNa)

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract The synthesis and characterization of an amphiphilic nitroxide to be used as a controlling agent in a nitroxide‐mediated living radical polymerization in aqueous dispersion media is presented. In the first stage of nitroxide synthesis (phthalimide protection), two reaction methods were employed: traditional and microwave.
Enrique García‐Leal   +3 more
wiley   +1 more source

Pharmaceutical Applications of TLC

open access: yes, 2001
This article summarizes the application of thin-layer chromatography (TLC) to the separation (analysis) of pharmaceuticals. The vast majority of applied methods involve classic TLC; however, both forced-flow TLC and planar electrophoresis are gaining in ...
Kalász Huba, Báthori Mária
core  

Proteomic profiling of Elp1‐deficient trigeminal ganglia reveals disruption of neurotrophic and metabolic pathways in a familial dysautonomia mouse model

open access: yesDevelopmental Dynamics, EarlyView.
Abstract Background Elp1, a subunit of the Elongator complex, is essential for tRNA modification and neuronal development. Mutations in ELP1 underlie familial dysautonomia (FD), a disorder marked by sensory and autonomic neuropathy. While loss of Elp1 disrupts trigeminal ganglion formation and survival, the downstream molecular consequences remain ...
Carrie E. Leonard   +3 more
wiley   +1 more source

Artificial [FeFe]‐Hydrogenase Mimics From Ferrocenyl Thioketone‐Functionalized Triphenylamine and (Bi)thiophene Derivatives: Synthesis, Characterization, and Hydrogen Evolution Catalysis

open access: yesEuropean Journal of Inorganic Chemistry, EarlyView.
Synthesis of ferrocenyl thioketone‐functionalized triphenylamine and triphenylamine‐(bi)thiophene derivatives as proligands for the assembly of artificial [FeFe]‐hydrogenase active site models. Thiocarbonyl compounds, especially thioketones, have emerged as promising precursors for constructing [FeFe]‐hydrogenase mimics that can mediate hydrogen ...
Hassan Abul‐Futouh   +5 more
wiley   +1 more source

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