Deep eutectic solvents (DES) as a new kind of green solvent were used for the first time to excellently extract phenolic compounds from model oil. It was also proved that DES could be used to extract other polar compounds from non-polar or weakly-polar solvents by liquid-phase microextraction.

We show that polycyclic aromatic hydrocarbon (PAH) based field effect transistor (FET) arrays can serve as excellent chemical sensors for the detection of volatile organic compounds (VOCs) under confounding humidity conditions. Using these sensors, w/o complementary pattern recognition methods, we study the ability of PAH-FET(s) to: (i) discriminate between aromatic and non-aromatic VOCs; (ii) ...

Background The effect of polar organic xenobiotics in the central nervous system depends on blood-brain barrier (BBB) penetration of these compounds. Newly synthesized pyridinium aldoximes (K-compounds) are promising antidotes for organophosphate intoxications. However, being highly polar, their BBB penetration is questionable. Using an in vivo model we aimed to characterize the BBB penetration...

A surface sediment from Carteau cove, located at the western part of the Gulf of Fos (France), was collected and analysed to determine the lipid composition of its most polar fraction. Analyses by high performance liquid chromatography (HPLC) and thin-layer chromatography (TLC) of the polar fraction of the sediment extract revealed the presence of phospholipids (PL), with mainly phosphatidylgly...

Arial parts of Primula genus (Primulaceae) are well known to treat various ailments in Iranian Traditional Medicine. Our preliminary studies showed that the medium polar to polar extracts of Primula auriculata had a significant cytotoxic activity and Induction of apoptosis effects on some cancerous cell lines. The current study focused on phytochemical investigation and characterization the com...

We demonstrate that the functionalization of carbon nanotubes dramatically alters their sorption characteristics. The effect of covalent functionalization of multiwalled carbon nanotubes (MWNTs) on the gas phase adsorption and desorption of polar and nonpolar organics is presented. Carboxylation and nitration led to the generation of polar functional groups on the nanotube surface. The derivati...

This paper describes a novel ethylene glycol(EG) and silicone based combined sorbent phase developed for stir bar sorptive extraction (SBSE) using the GERSTEL TwisterTM. EG-Silicone, polyacrylate (PA), and polydimethylsiloxane (PDMS) Twisters were used separately to perform SBSE on whisky, white wine and multivitamin juice in order to determine the usefulness of these phases for generating qual...

The metabolome is the complete set of small molecules coming from protein activity (anabolism and catabolism) in living systems. They have a broad range of chemical structures and physicochemical properties and therefore different analytical methodologies are necessary. Highly polar metabolites, such as sugars and most amino acids are not retained by conventional reversed-phase LC columns. With...