Modelling of Ion Transport in Electromembrane Systems: Impacts of Membrane Bulk and Surface Heterogeneity [PDF]
Applied Sciences, 2018 Artificial charged membranes, similar to the biological membranes, are self-assembled nanostructured materials constructed from macromolecules. The mutual interactions of parts of macromolecules leads to phase separation and appearance of microheterogeneities within the membrane bulk.
Victor Nikonenko +5 more
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Use of electrochemical impedance spectroscopy to assess the stability of the anion exchange membrane MA-41, modified by poly-N,N-diallylmorpholine bromide in overlimiting current modes [PDF]
, 2023 The paper presents the results of studying the electrochemical characteristics and long-term stability of MA-41 membranes on the surface of which poly-N,N-diallylmorpholinium bromide was applied.
Achoh, Aslan R. +5 more
core +3 more sources
Electromembrane Extraction Provides Unprecedented Selectivity for Drugs in Cell Culture Media Used in Organoid and Organ-on-Chip Systems. [PDF]
Anal ChemThe use of organoids and organ-on-chip technologies as nonanimal methodologies in drug discovery and personalized medicine is rapidly expanding. However, the complexity and small volumes of organoid culture samples present significant analytical challenges, e.g., in drug analysis using liquid chromatography-mass spectrometry (LC-MS).
Kogler S +8 more
europepmc +3 more sources
Determination of amphetamine enantiomers in urine by conductive vial electromembrane extraction and ultra-high performance supercritical fluid chromatography tandem mass spectrometry [PDF]
, 2023 Separation and quantification of amphetamine enantiomers are commonly used to distinguish between consumption of prescription amphetamine (mostly S ‐amphetamine) and illicit forms of the drug (racemate).
Hegstad, Solfrid +3 more
core +1 more source
One-dimensional mathematical models of salt ion transport in electromembrane systems
LAPLAGE EM REVISTA, 2021 This article presents a 1D classification and analysis of mathematical models of binary salt ion transport in electromembrane systems. The various phenomena of concentration polarization occurring in these systems are studied using mathematical models, both individually and in combination with each other.
openaire +2 more sources
A microfluidic liquid phase microextraction method for drugs and parabens monitoring in human urine [PDF]
, 2021 Frequent consumption of pharmaceuticals and personal care products (PPCPs) have emerged as a current problem that highlights the pressing need for new multi-residue analytical methods that allow their simultaneous determination to assess their overall ...
Dowlatshah, Samira +3 more
core +1 more source
, 2018 We characterize the dynamics of an electrolyte embedded in a varying-section channel under the action of a constant external electrostatic field. By means of molecular dynamics simulations we determine the stationary density, charge and velocity profiles
Chinappi, Mauro, Malgaretti, Paolo
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Electrochemiluminescent detection of methamphetamine and amphetamine [PDF]
, 2016 Direct detection of amphetamine type stimulants (ATS) including methylamphetamine (MA) in street samples and biological matrices without the need for pretreatment or extraction is a great challenge for forensic drug analysis.
Dennany, Lynn, McGeehan, Jonathan
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A rapid and versatile microfluidic method for the simultaneous extraction of polar and non-polar basic pharmaceuticals from human urine [PDF]
, 2022 In sample preparation, simultaneous extraction of analytes of very different polarity from biological matrixes represents a challenge. In this work, verapamil hydrochloride (VRP), amitriptyline (AMP), tyramine (TYR), atenolol (ATN), metopropol (MTP) and ...
Giménez Gómez, Pablo +4 more
core +1 more source
MathematicsThis article proposes various new approximate analytical solutions of the boundary value problem for the non-stationary system of Nernst–Planck–Poisson (NPP) equations in the diffusion layer of an ideally selective ion-exchange membrane at overlimiting ...
Savva Kovalenko +4 more
doaj +1 more source