Results 101 to 110 of about 1,272,243 (389)
Pharmacological evaluation polysaccharide complex flowers tansy [PDF]
From flowers tansy extracted polysaccharide complex. Installed its qualitative and quantitative composition, have developed a technique standardizing the content of reducing sugars.
Engalycheva, E. E.+3 more
core +2 more sources
Oct4‐nanoscript, a biomimetic nanoparticle‐based artificial transcription factor, precisely regulates cellular rejuvenation by activating Oct4 target genes, restoring epigenetic marks, and reducing DNA damage. In a progeria model, it effectively rescued aging‐associated pathologies and extended lifespan.
Hongwon Kim+8 more
wiley +1 more source
Chemical and toxicological analysis of zolpidem
Methods for measuring zolpidem are suggested: thin-layer chromatography, high-pressure liquid chromatography, ultrtaviolet spectrophotometry, gas chromatography with mass selective detector can be used for identification zolpidem in chemical ...
Y A Khomov+3 more
doaj
Strong Stability with respect to weak limit for a Hyperbolic System arising from Gas Chromatography [PDF]
We investigate a system related to a particular isothermal gas-solid chromatography process, called ?Pressure Swing Adsorption?, with two species and instantaneous exchange kinetics. This system presents the particularity to have a linearly degenerate eigenvalue: this allows the velocity of the gaseous mixture to propagate high frequency waves. In case
arxiv
ADVANCING THE SEPARATION SCIENCES THROUGH THE DELIVERY OF NEW MATERIALS, TECHNOLOGY AND METHODOLOGY. [PDF]
A thesis and collection of works submitted to Plymouth University in partial fulfilment for the degree of DOCTOR OF ...
Paull, Brett
core +2 more sources
Tunable Thermoshrinkable Hydrogels for 4D Fabrication of Cell‐Seeded Channels
A thermoresponsive polymer with methacrylate groups for photo‐cross‐linking, based on polyethylene glycol, N‐isopropylacrylamide, and 2‐hydroxyethyl acrylate is synthetized to yield hydrogels that shrink upon temperature increase. The new polymer enables the fabrication of cell‐laden perfusable channels with diameters below 200 µm by combining ...
Greta Di Marco+12 more
wiley +1 more source
High-Pressure Liquid Chromatography of Caffeine in Coffee
Abstract A new method is described for the determination of caffeine in coffee, based on high-pressure liquid chromatography. The caffeine is extracted from the sample with water and/or methylene chloride, and then separated from interfering materials by passing an aliquot of the extract through a high-pressure column containing ...
Bryan L Madison+2 more
openaire +2 more sources
Evidence of late Quaternary environmental change in a continental east Antarctic lake from lacustrine sedimentary pigment distributions [PDF]
A sediment core from Progress Lake, one of the oldest lacustrine sequences in East Antarctica, contains distinct zones dating from a previous interglacial (most likely Marine Isotope Stage 5e, c.
Hodgson, D A, Keely, B J, Squier, A H
core +2 more sources
This study explores the use of fluorinated copolymers with varying fluorophilic side chain lengths to enhance PFAS affinity. The integration of electrochemical techniques demonstrates enhanced adsorbent regeneration, with molecular dynamics simulations providing insight into the molecular‐level interactions involved.
Anaira Román Santiago+7 more
wiley +1 more source
Characterization and toxicity evaluation of degradation products of febantel
Background The aim of the present work was to determine potential toxicity of degradation products of febantel generated under different stress conditions mentioned in guideline Q1A (R2) laid down by International Council for Harmonization (ICH).
Anand A. Mahajan+4 more
doaj +1 more source