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Showing 1-30 of 38 results for "238589" within Papers
Zhijian Wu et al.
Journal of controlled release : official journal of the Controlled Release Society, 104(3), 497-505 (2005-05-25)
We investigate the controlled release of lidocaine hydrochloride from the doped silica-based xerogels. In the xerogel preparation, tetraethoxysilane (TEOS), methyltriethoxysilane (MTES), and propyltriethoxysilane (PTES) are used as precursors, and a nonionic surfactant Igepal CO 720 is used as a dopant.
Lingling Zhao et al.
Journal of hazardous materials, 239-240, 206-212 (2012-09-22)
A dual-cloud point extraction (d-CPE) procedure has been developed for simultaneous pre-concentration and separation of heavy metal ions (Cd2+, Co2+, Ni2+, Pb2+, Zn2+, and Cu2+ ion) in water samples by inductively coupled plasma optical emission spectrometry (ICP-OES). The procedure is
Georg Hartmann et al.
Analytica chimica acta, 761, 27-33 (2013-01-15)
The determination of metallic nanoparticles in environmental samples requires sample pretreatment that ideally combines pre-concentration and species selectivity. With cloud point extraction (CPE) using the surfactant Triton X-114 we present a simple and cost effective separation technique that meets both
Krishna R Reddy et al.
Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering, 39(5), 1189-1212 (2004-05-13)
Electrokinetically enhanced in-situ flushing using surfactants has the potential to remove polycyclic aromatic hydrocarbons (PAHs) from low permeability clay soils; however, previous research has shown that the applied electric potential produces complex physical, chemical, and electrochemical changes within clay soils
Rui Ma et al.
Analytical biochemistry, 424(2), 124-126 (2012-03-01)
Triton X-114 temperature transition extraction has been considered to be a simple and cost-effective strategy to eliminate endotoxin from plasmid preparations. However, a repeated cooling-heating process may promote the degradation of plasmid DNA. Based on the finding that the cloud
D V Krishna Pantakani et al.
PloS one, 6(12), e29584-e29584 (2012-01-05)
ZFYVE27 (Protrudin) was originally identified as an interacting partner of spastin, which is most frequently mutated in hereditary spastic paraplegia. ZFYVE27 is a novel member of FYVE family, which is implicated in the formation of neurite extensions by promoting directional
Adam J Blanch et al.
Small (Weinheim an der Bergstrasse, Germany), 11(35), 4550-4559 (2015-06-13)
Branched gold nanoparticles with sharp tips are considered excellent candidates for sensing and field enhancement applications. Here, a rapid and simple synthesis strategy is presented that generates highly branched gold nanoparticles with hollow cores and a ca.100% yield through a
Zonghao Li et al.
Water science and technology : a journal of the International Association on Water Pollution Research, 67(2), 247-253 (2012-11-22)
A new, simple and rapid method based on dispersive liquid-liquid microextraction (DLLME) was developed for extracting and preconcentrating copper (Cu), nickel (Ni), lead (Pb) and cadmium (Cd) in water samples prior to flame atomic absorption spectrometry (FAAS) analysis. 1-(2-thiazolylazo)-naphthol (TAN)
S Okonogi et al.
Drug discoveries & therapeutics, 6(5), 249-255 (2012-12-12)
The aim of the present study was to enhance the cholinesterase inhibitory activity of Zingiber cassumunar (ZC) oil using a microemulsion (ME) technique. Pseudoternary phase diagrams of the oil, water, and surfactant/co-surfactant mixture were constructed using a water titration method.
Halil İbrahim Ulusoy et al.
Talanta, 88, 516-523 (2012-01-24)
A new micelle-mediated separation and preconcentration method was developed for ultra-trace quantities of mercury ions prior to spectrophotometric determination. The method is based on cloud point extraction (CPE) of Hg(II) ions with polyethylene glycol tert-octylphenyl ether (Triton X-114) in the
Mustafa Soylak et al.
Journal of AOAC International, 95(6), 1797-1802 (2013-03-05)
A cloud point extraction procedure for the preconcentration of Pb2+ in various samples following complexation with 2,2'-(1E,1'E)-1,1'-(2,2'-azanediylbis(ethane-2,1-diyl)bis(azan-1-yl-1-ylidene)) bis(ethan-1-yl-1-ylidene)diphenol in Triton X-114 after centrifugation is reported. A 0.5 mL portion of methanol acidified with 1.0 M HNO3 was added to the
Mohammad Eftekhari et al.
Environmental monitoring and assessment, 187(1), 4129-4129 (2014-11-19)
Vortex-assisted surfactant-enhanced emulsification microextraction based on solidification of floating organic drop (VASEME-SFO) was used for preconcentration and speciation of antimony (ΙΙΙ, V) followed by electrothermal atomic absorption spectrometry (ETAAS). In this procedure, Triton X-114 was used as emulsifier and 1-undecanol
Russell M Morphew et al.
Veterinary parasitology, 191(3-4), 379-385 (2012-10-02)
Fasciola hepatica NP-40 released protein extract (FhNPE) exhibits potent Th1 immunosuppressive properties in vitro and in vivo. However, the protein composition of this active fraction, responsible for Th1 immune modulatory activity, has yet to be resolved. Therefore, FhNPE, a Nonidet
Marta Toth et al.
Methods in molecular biology (Clifton, N.J.), 878, 121-135 (2012-06-08)
Gelatin zymography is a simple yet powerful method to detect proteolytic enzymes capable of degrading gelatin from various biological sources. It is particularly useful for the assessment of two key members of the matrix metalloproteinase family, MMP-2 (gelatinase A) and
Jameel A Baig et al.
Journal of AOAC International, 95(6), 1755-1760 (2013-03-05)
A method has been developed for the determination of arsenic (As) in pharmaceutical and scalp hair samples of kidney failure patients by cloud point extraction (CPE). The scalp hair samples were subjected to microwave-assisted digestion in nitric acid-hydrogen peroxide (2
Surfactant and oxidant enhanced electrokinetic remediation of a PCBs polluted soil
Separation and Purification Technology null
Hongbing Yang et al.
Journal of immunological methods, 391(1-2), 174-178 (2013-03-19)
The capacity of CD8+ T cells to inhibit HIV-1 replication in vitro strongly correlates with virus control in vivo. Post-hoc evaluations of HIV-1 vaccine candidates suggest that this immunological parameter is a promising benchmark of vaccine efficacy. Large-scale analysis of
Joost Snijder et al.
Immunity, 48(4), 799-811 (2018-04-19)
Epstein-Barr virus (EBV) is a causative agent of infectious mononucleosis and is associated with 200,000 new cases of cancer and 140,000 deaths annually. Subunit vaccines against this pathogen have focused on the gp350 glycoprotein and remain unsuccessful. We isolated human
Ana C A M Pajuaba et al.
Proteomics, 12(6), 820-831 (2012-04-28)
Brucella abortus is a Gram-negative intracellular bacterium that causes infectious abortion in food-producing animals and chronic infection in humans. This study aimed to characterize a B. abortus S19 antigen preparation obtained by Triton X-114 (TX-114) extraction through immunoproteomics to differentiate
S M Kelleher et al.
Nanotechnology, 26(36), 365703-365703 (2015-08-22)
This paper describes the fabrication of oligonucleotide-coated Cy5-doped silica nanoparticles using a combination of multivalent linkers and their use in surface-based DNA sandwich hybridization assays. Dipodal silane is introduced as a means to fabricate amine-coated silica nanoparticles and its advantages
Amr Ali Mohamed et al.
Journal of colloid and interface science, 381(1), 198-201 (2012-06-19)
Uniform fully dispersed particles of flufenamic acid, a widely used anti-inflammatory drug, were prepared by two different methods. In the first one, the drug solution in organic solvents was added to a non-solvent (water or aqueous solutions of stabilizers); while
Shikha Gupta et al.
Journal of pharmaceutical and biomedical analysis, 66, 33-39 (2012-04-03)
A new validated high-performance thin-layer chromatographic (HPTLC) method has been developed for the simultaneous quantitation of four antipsychotic indole alkaloids (IAs), reserpiline (RP, 1), α-yohimbine (YH, 2), isoreserpiline (IRP, 3) and 10-methoxy tetrahydroalstonine (MTHA, 4) as markers in the leaves
Dimosthenis L Giokas et al.
Journal of chromatography. A, 1251, 33-39 (2012-07-13)
A novel two-step extraction technique combining cloud point extraction (CPE) with dispersive micro-solid phase extraction (D-μ-SPE) is presented in this work for the first time. The method involves initial extraction of the target analytes by CPE in the micelles of
Adam J Lowe et al.
Methods in molecular biology (Clifton, N.J.), 899, 265-275 (2012-06-28)
Endotoxin removal is critical when producing therapeutic proteins in bacterial systems. This hydrophobic compound can be removed through chromatography or filtration, but presents unique challenges dependent upon protein composition as well as production scale. Here we present a robust method
Qi Zhao et al.
Journal of chromatographic science, 51(4), 341-348 (2012-09-15)
A method based on cloud point extraction (CPE) coupled with high-performance liquid chromatography separation and ultraviolet (UV) detection was developed to determine andrographolide and dehydroandrographolide in human plasma. The nonionic surfactant Triton X-114 was chosen as the extraction medium. Variable
Friedrich P Thinnes et al.
Molecular genetics and metabolism, 107(3), 632-633 (2012-09-25)
There is indication that human type-1 VDAC/Porin31HL complexes, when purified from highly enriched cell membrane preparations of human B-lymphocytes by classical ion-exchange chromatography in the detergent Nonidet P40, rest in fully closed state, its N-terminus being accessible for mAbs. Cholesterol
John E Bradley et al.
Laboratory investigation; a journal of technical methods and pathology, 93(3), 365-374 (2013-01-30)
Thymocyte differentiation antigen-1 (Thy-1) is a glycosylphosphatidylinositol (GPI)-linked cell surface glycoprotein expressed on numerous cell types, which regulates signals affecting cell adhesion, migration, differentiation, and survival. In addition, Thy-1 has been detected in the serum, cerebral spinal fluid, wound fluid
Flemming Jessen et al.
Analytical biochemistry, 485, 11-17 (2015-06-17)
A simple and reproducible procedure for enrichment of a plasma protein subfraction suitable for two-dimensional polyacrylamide gel electrophoresis (2DE) was developed, using a Triton X-114-based cloud point extraction (CPE). Appropriate conditions for such a CPE procedure were found by SDS-PAGE
Hamta Shoaee et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 98, 70-75 (2012-09-18)
A cloud-point extraction process coupled to ICP-OES by using 3-nitro benzaldehyde thiosemicarbazone (3-NBT) as complexing agent was developed for the simultaneous preconcentration and determination of copper and mercury in water samples. The variables affecting the complexation and extraction steps were
Ebru Ates et al.
Journal of AOAC International, 94(6), 1853-1862 (2012-02-11)
A cloud point extraction method is reported using LC/MS for the determination of regulated water-soluble food colors (Allura Red, Sunset Yellow, erythrosine, and tartrazine) and banned fat-soluble synthetic azo dyes (Sudan I, II, III, and IV; Red B; 7B; Black
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