Results 91 to 100 of about 81,110 (304)

Liquid collection efficiencies after supercritical fluid extraction

, 2003
The design of any supercritical fluid extraction (SFE) experiment should break down into two parts: 1) removal of the analytes of interest from the bulk matrix and 2) deposition of those analytes in a user friendly manner for further studies ...
Thompson, Peter G.
core  

PARK(ing) time–How park deficiency affects the biological clock in a Drosophila model of Parkinson's disease

FEBS Letters, EarlyView.
Drosophila park mutants serve as a model for Parkinson's disease. We used this strain to investigate the connection between oxidative stress and the circadian clock mechanism. We showed that increased oxidative stress affects the physiology of pacemaker cells, disrupting their daily structural plasticity. Lack of rhythmic signaling from pacemaker cells
Kamila Zientara, Kinga Skoczek, Elzbieta Pyza, Milena Damulewicz   +3 more
wiley   +1 more source

Monomer extraction from polymers using supercritical CO2

Journal of CO2 Utilization
Polymerization reactions often leave unreacted monomers in the polymer. These unreacted monomers can emit vapors at ambient temperatures that cause unpleasant odors, pose both environmental and safety risks, and negatively impacts polymer properties ...
Friso G. Versteeg, Frederique A. Versteeg, Francesco Picchioni   +2 more
doaj   +1 more source

Extraction and detection of arsenicals in seaweed via accelerated solvent extraction with ion chromatographic separation and ICP-MS detection

, 2001
An accelerated solvent extraction (ASE) device was evaluated as a semi-automated means of extracting arsenicals from ribbon kelp. The effect of the experimentally controllable ASE parameters (pressure, temperature, static time, and solvent composition ...
Creed, J. T., Wei, Xinyi, Brockhoff-Schwegel, C. A., Gallagher, P. A., Shoemaker, J. A.   +4 more
core   +1 more source

Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis

FEBS Letters, EarlyView.
Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee, Junho Jeong, Chae Yeong Lee, Hyunjoon Cho, Man Hwan Oh, Je Chul Lee, Jee‐Young Lee, Yangmee Kim   +7 more
wiley   +1 more source

Microwave-Assisted Extraction of Oxymatrine from Sophora flavescens

Molecules, 2011
In this paper, microwave-assisted extraction (MAE) of oxymatrine from Sophora flavescens were studied by HPLC-photodiode array detection. Effects of several experimental parameters, such as concentration of extraction solvent, ratio of liquid to material,
Xu-Xia Ai, Hua-Bin Li, Yang Song, Xiang-Rong Xu, Bo Cui, En-Qin Xia   +5 more
doaj   +1 more source

Hydrogen bonds-triggered differential extraction efficiencies for bifenthrin by three polymeric ionic liquids with varying anions based on FT-IR spectroscopy. [PDF]

RSC Adv, 2022
Zhang X, Gao M, Liu T, Wang H, Wang X.
europepmc   +1 more source

Three phosphatase families form a community: The phosphohydrolases that act upon inositol pyrophosphates

FEBS Letters, EarlyView.
Inositol pyrophosphates are energy‐rich signaling molecules that perform critical functions in cells. Three different families of phosphatases hydrolyze the β phosphate of the inositol pyrophosphate molecules: two have narrow specificities and one is promiscuous.
Ronda J. Rolfes
wiley   +1 more source

Ethanol extraction desalination test using pre-treated mine wastewater concentrated by reverse osmosis

Desalination and Water Treatment
: This article investigates the efficiency of using ethanol as the extracting solvent for the desalination of pre-treated mine wastewater. The wastewater, concentrated through reverse osmosis (RO), had a salinity of 47,115.60 ppm before solvent ...
Edgar E. Vásquez Salazar, Gorki Román Hernández, José A. Vargas Saavedra, Harold J. Villegas Romero   +3 more
doaj   +1 more source

Chromium extraction by microemulsions in two- and three-phase systems [PDF]

, 2015
Microemulsion systems were used to remove chromium from an aqueous solution obtained from acid digestion of tannery sludge. The systems were composed by: coconut oil soap as surfactant, 1-butanol as cosurfactant, kerosene as the oil phase, and chromium ...
Dantas Neto, Afonso Avelino, Dantas, Tereza Neuma de Castro, Moura, Maria Carlenise Paiva de Alencar, Oliveira, Mônica Rodrigues, Barros Neto, Eduardo Lins, Melo, Keila Rejane de Oliveira   +5 more
core   +1 more source