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M Villa et al.
The journal of physical chemistry. A, 115(46), 13573-13580 (2011-10-18)
CCSD(T) state-of-the-art ab initio calculations are used to determine a vibrationally corrected three-dimensional potential energy surface of dimethyl-ether depending on the two methyl torsions and the COC bending angle. The surface is employed to obtain variationally the lowest vibrational energies
Dilyana Georgieva et al.
Journal of pharmaceutical sciences, 103(8), 2406-2413 (2014-06-26)
This paper describes the synthesis and characterization of cationic copolymers with different macromolecular architecture and drug delivery properties of the corresponding dexamethasone sodium phosphate (DSP)-loaded systems. Copolyelectrolytes comprising poly[2-(acryloyloxy)ethyl] trimethylammonium chloride (PAETMAC) and poly(ethylene glycol) blocks as well as a
Dimethyl ether
Muller M, et al.
Ullmann's Encyclopedia of Industrial Chemistry (2000)
Bruce L Yoder et al.
The Journal of chemical physics, 138(4), 044202-044202 (2013-02-08)
We present a new experimental configuration for the study of size-dependent, angle-resolved photoelectron and photoion spectra of weakly bound ultrafine aerosol particles targeted at particle sizes below ~20 nm. It combines single photon ionization by a tunable, table-top vacuum ultraviolet
Lucas A Lane et al.
The journal of physical chemistry. B, 118(49), 14140-14147 (2014-08-27)
Quantum dots (QDs) offer distinct advantages over organic dyes and fluorescent proteins for biological imaging applications because of their brightness, photostability, and tunability. However, a major limitation is that single QDs emit fluorescent light in an intermittent on-and-off fashion called
Zhijun Zuo et al.
Journal of molecular modeling, 15(9), 1079-1083 (2009-02-18)
Density functional theory (DFT) combined with the conductor-like solvent model (COSMO) can provide valuable atomistic level insights into CO adsorption on Cu surface interactions in liquid paraffin. The objective of this research was to investigate the solvent effect of liquid
Bapurao Surnar et al.
Nanoscale, 7(42), 17964-17979 (2015-10-16)
Platinum drug delivery against the detoxification of cytoplasmic thiols is urgently required for achieving efficacy in breast cancer treatment that is over expressed by glutathione (GSH, thiol-oligopeptide). GSH-resistant polymer-cisplatin core-shell nanoparticles were custom designed based on biodegradable carboxylic functional polycaprolactone
ZhouXue Wu et al.
Colloids and surfaces. B, Biointerfaces, 122, 90-98 (2014-07-18)
In this study, an in situ gel-based dual drug delivery system (PEG-PCL-PEG/DDP+MPEG-PCL/PTX, abbreviated as PDMP) was prepared through the combination of a cisplatin (DDP)-containing thermosensitive hydrogel (PEG-PCL-PEG/DDP, PECE/DDP) and paclitaxel (PTX)-loaded polymeric micelles (average diameter of 20.1nm). PDMP is a
Rui Qu et al.
ACS applied materials & interfaces, 6(21), 19207-19216 (2014-10-08)
Following an inspiration from the fine structure of natural peroxidases, such as horseradish peroxidase (HRP), an artificial peroxidase was constructed through the self-assembly of diblock copolymers and hemin, which formed a functional micelle with peroxidase-like activity. The pyridine moiety in
Jian Wei He et al.
Food additives & contaminants. Part A, Chemistry, analysis, control, exposure & risk assessment, 32(9), 1523-1530 (2015-08-08)
In an investigation of deoxynivalenol (DON)-transformation products by Devosia mutans 17-2-E-8, the major product was identified as 3-epi-DON. This DON-transformation product was analysed by liquid chromatography and identified by congruent retention time and UV/Vis spectrum, as well as mass spectrometric
Cheng-ming Meng et al.
Zhonghua lao dong wei sheng zhi ye bing za zhi = Zhonghua laodong weisheng zhiyebing zazhi = Chinese journal of industrial hygiene and occupational diseases, 30(2), 142-143 (2012-07-19)
To develop determination of dimethyl ether in workplace air by GC. Dimethyl ether were sampled with solvent desorption active carbon tube. The sampled carbon tube were desorbed by carbon tetrachloride, Elite-WAX column was used with temperature programmed from 40 to
Xingwang Zhang et al.
European journal of pharmaceutical sciences : official journal of the European Federation for Pharmaceutical Sciences, 62, 301-308 (2014-06-24)
Oral delivery of many drugs is plagued with limited solubility and/or poor stability. This paper aimed to explore the performance of polymeric mixed micelles on solubilization, stabilization and bioavailability enhancement with stiripentol as model drug. Stiripentol-loaded mixed micelles were prepared
Zhigui Su et al.
Molecular pharmaceutics, 11(6), 1823-1834 (2014-05-02)
In this study, a dual-targeting drug delivery system based on bovine serum albumin nanoparticles (BSA-NPs) modified with both lactoferrin (Lf) and mPEG2000 loading doxorubicin (DOX) was designed, and its blood-brain barrier (BBB) penetration and brain glioma cells targeting properties were
Hideki Kanda et al.
Water environment research : a research publication of the Water Environment Federation, 83(1), 23-25 (2011-02-05)
We proposed a method for the deodorising and dewatering of biosolids. In the proposed method, liquefied dimethyl ether (DME) was used as an extractant for odorous components and water. We developed a bench-scale experiment to almost completely deodorize and dewater
Bifunctional catalysts for conversion of synthesis gas to dimethyl ether
Ge Qingjie, et al.
Applied Catalysis A: General, 167(1), 23-30 (1998)
Jessica M McCormick et al.
Environmental science & technology, 45(15), 6567-6574 (2011-06-18)
Bisphenol A (BPA) is used in the manufacture of plastics, and has been identified in various environmental matrices, including human serum and breast milk. The prevalence of BPA in the environment and the potential exposure to humans underscores the need
Giuseppe Antonio Elia et al.
Scientific reports, 5, 12307-12307 (2015-08-05)
Herein we report the characteristics of a lithium-oxygen battery using a solid polymer membrane as the electrolyte separator. The polymer electrolyte, fully characterized in terms of electrochemical properties, shows suitable conductivity at room temperature allowing the reversible cycling of the
Zaheer Ahmad et al.
Journal of biomaterials science. Polymer edition, 27(1), 40-54 (2015-10-23)
Tumor microenvironment-responsive nano drug delivery vehicles are gaining mounting attention in the field of biomedical sciences. The hypoxic response of the tumorous cells due to very low partial pressure of oxygen (some time less than 2.5 mm of Hg) in
Reggie L Hudson et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 233, 118217-118217 (2020-03-13)
Laboratory astrochemists have generated infrared (IR) data for nearly all common classes of organic compounds, but ethers in the solid phase continue to be neglected despite detections of ethers in the interstellar medium by radio astronomers and uncertainty in how
Dimethyl ether carbonylation to methyl acetate over highly crystalline zeolite seed-derived ferrierite.
Kim J, et al.
Catalysis Science & Technology, 8(12), 3060-3072 (2018)
Sonja Klee et al.
Rapid communications in mass spectrometry : RCM, 28(14), 1591-1600 (2014-06-05)
Atmospheric pressure chemical ionization (APCI) sources operated with point to plane DC discharges ('Coronas') frequently suffer from point electrode degradation and potentially lead to oxidation and/or fragmentation of the generated analyte ions. It is postulated that these adverse effects are
Mikiko Tsukimoto et al.
Biopharmaceutics & drug disposition, 36(1), 15-33 (2014-09-30)
Aliskiren is a substrate for P-glycoprotein (P-gp) and is metabolized via cytochrome P450 3A4 (CYP3A4). The aim of the present study was to assess whether P-gp influenced the pharmacokinetics of aliskiren and also if drug-drug interactions (DDIs) mediated through P-gp
Ravindra V Badhe et al.
Carbohydrate polymers, 130, 213-221 (2015-06-17)
A new chitosan-based tri-block conjugate, O-PEG-chitosan-N-cysteine was synthesized using microwave irradiation. For synthesis of this derivative, chitosan was modified to a PEG-chitosan conjugate followed by PEG-chitosan-cysteine using 6-O PEGylation and 2-N-thiolation, respectively. The synthesized derivative was characterized using various analytical
Balazs Pinter et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 19(2), 519-530 (2012-11-22)
Halogen bonds between the trifluoromethyl halides CF(3)Cl, CF(3)Br and CF(3)I, and dimethyl ether, dimethyl sulfide, trimethylamine and trimethyl phosphine were investigated using Pearson's hard and soft acids and bases (HSAB) concept with conceptual DFT reactivity indices, the Ziegler-Rauk-type energy-decomposition analysis
Reiji Miyahara et al.
Journal of oleo science, 58(2), 65-73 (2009-01-16)
In this study, the effect of a random copolymer of polyoxyethylene (POE, 38 mol)/polyoxypropylene (POP, 10 mol) pentaerythrytol tetramethyl ether [PEPTME (38/10)], which is unable to form a self-organizing structure on account of its bulkiness, on the microemulsion phase was
Waldemar Kulig et al.
The journal of physical chemistry. A, 115(23), 6149-6154 (2011-02-09)
Clathrate hydrates with polar guest molecules (dimethyl ether, ethylene oxide, trimethylene oxide, tetrahydrofuran, and tetrahydropyran) were studied by means of the density functional theory. A model of a large cage of structure-I clathrate was employed. Optimal configurations of encaged guests
Xiangfeng Chen et al.
Rapid communications in mass spectrometry : RCM, 26(3), 363-368 (2012-01-10)
The mass spectrometric studies of transition metal ion-ether reactions are informative in elucidating the principles of metal ion mediated demethanation and dehydrogenation. In order to obtain a deeper understanding of the role of metal ions, it is essential to explore
Emmanuel Njumbe Ediage et al.
Food chemistry, 177, 397-404 (2015-02-11)
An LC-MS/MS method was developed and validated for the detection and quantification of 23 mycotoxins in different varieties of sorghum. The method performance characteristics were as follows: suitable linearity ranges for all 23 mycotoxins with p-value >0.05; limits of detection
Martin P Atkins et al.
Chemical communications (Cambridge, England), 46(10), 1745-1747 (2010-02-24)
Selected Brønsted acidic ionic liquids were tested as homogeneous catalysts for the dehydration of methanol to dimethyl ether. Ionic liquids incorporating an alkanesulfonic acid as a part of the cation, a complex acidic anion, [A(2)H](-), or both, proved to be
Madiha F Khan et al.
Colloids and surfaces. B, Biointerfaces, 132, 216-224 (2015-06-10)
Silicone surfactants are used in a variety of applications, however, limited data is available on the relationship between surfactant structure and biological activity. A series of seven nonionic, silicone polyether surfactants with known structures was tested for in vitro antibacterial
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