|别名||N,N-二甲基乙酰胺 ;乙酰二甲胺,二甲替乙酰胺,二甲基乙酰胺 ;Acetic acid dimethylacetamide NBS DMA|
|个人防护设备||Eyeshields,Faceshields,full-face respirator (US),Gloves,multi-purpose combination respirator cartridge (US),type ABEK (EN14387) respirator filter|
Cellulose acylation by anhydrides (ethanoic to hexanoic) plus tosyl chloride, TsCl, or imidazole in LiCl/N,N-dimethylacetamide solution has been studied. Contrary to a previous claim, TsCl does not ca...Read More
Polar solvents decrease the viscosity of high concentration IgG1 solutions through hydrophobic solvation and interaction: Formulation and biocompatibility considerations.
Low-volume protein dosage forms for subcutaneous injection pose unique challenges to the pharmaceutical scientist. Indeed, high protein concentrations are often required to achieve acceptable bioavail...Read More
The sonochemical degradation of cellulose by a 24-kHz ultrasound probe system and the oxidative modification of cellulose upon sonication were studied. Both aqueous cellulose suspension (heterogeneous...Read More
Highly efficient vinylaromatics generation via iron-catalyzed sp3 C-H bond functionalization CDC reaction: a novel approach to preparing substituted benzo[α]phenazines.
An iron-catalyzed benzylic vinylation was developed to transfer the carbon atom in the N,N-dimethyl moiety of N,N-dimethylacetamide (or N,N-dimethylformamide) to 2-methyl azaarenes to generate 2-vinyl...Read More
Survival of emu (Dromaius novaehollandiae) sperm preserved at subzero temperatures and different cryoprotectant concentrations.
Three experiments were conducted to optimize the protocol for cryopreservation of emu sperm. Ejaculates were collected from trained male emus then diluted 1:1 and pooled before allocation to treatment...Read More
Development of novel microprecipitated bulk powder (MBP) technology for manufacturing stable amorphous formulations of poorly soluble drugs.
A novel method was developed to manufacture amorphous formulations of poorly soluble compounds that cannot be processed with existing methods such as spray drying and melt extrusion. The manufacturing...Read More
Hierarchical self-assembly offers elegant and energy-efficient bottom-up strategies for the structuring of complex materials. For block copolymers, the last decade witnessed great progress in diversif...Read More
Benzofurans from benzophenones and dimethylacetamide: copper-promoted cascade formation of furan O1-C2 and C2-C3 bonds under oxidative conditions.
We're sorry this abstract is currently not available....Read More
The effect of chilled storage and cryopreservation on the sperm DNA fragmentation dynamics of a captive population of koalas.
This experiment documented the incidence and variability of sperm characteristics found in freshly collected and ex vivo-manipulated semen samples from a population of disease-free captive koalas with...Read More
Response of spermatozoa from the emu (Dromaius novaehollandiae) to rapid cooling, hyperosmotic conditions and dimethylacetamide (DMA).
Three experiments conducted to improve the survival of emu sperm during cryopreservation aimed to: (1) minimize chilling injury during the cooling phase; (2) determine the osmotic effects of dimethyla...Read More
Alginates are (1→4)-linked linear copolysaccharides composed of β-D-mannuronic acid (M) and its C-5 epimer, α-l-guluronic acid (G). Several strategies to synthesize organically modified alginate d...Read More
6-Azafulleroid-6-deoxy-2,3-di-O-myristoylcellulose (3) was synthesized from 6-azido-6-deoxycellulose (1) by two reaction steps. The myristoylation of compound 1 with myristoyl chloride/pyridine procee...Read More
Infrared optical constants, molar absorption coefficients, dielectric constants, molar polarisabilities, transition moments and dipole moment derivatives of liquid N,N-dimethylacetamide-carbon tetrachloride mixtures
Mid-infrared spectra of the DMA-carbon tetrachloride system by transmission and single- and multiple-reflection ATR technique in the whole composition range (0<x"D"M"A@?1), recorded ...Read More
This study was performed to evaluate the use of dimethylacetamide (DMA) and dimethyl sulfoxide (DMSO) in boar sperm cryopreservation. Semen from eight boars was cryopreserved following treatment with ...Read More
The aim of this study was to perform flow cytometric analysis of C11-BODIPY581/591 oxidation in fowl and geese sperm as a marker for membrane lipid peroxidation (LPO) and to establish if the cryoprese...Read More
A major challenge in the development of rechargeable Li-O(2) batteries is the identification of electrolyte materials that are stable in the operating environment of the O(2) electrode. Straight-chain...Read More
Chemistry and applications of polysaccharide solutions in strong electrolytes/dipolar aprotic solvents: an overview.
Biopolymers and their derivatives are being actively investigated as substitutes for petroleum-based polymers. This has generated an intense interest in investigating new solvents, in particular for c...Read More
Covalently cross-linked sulfone polybenzimidazole membranes with poly(vinylbenzyl chloride) for fuel cell applications.
Covalently cross-linked polymer membranes were fabricated from poly(aryl sulfone benzimidazole) (SO(2) PBI) and poly(vinylbenzyl chloride) (PVBCl) as electrolytes for high-temperature proton-exchange-...Read More
To explore the hepatic toxicity and the exposure biomarkers of N, N-Dimethylacetamide.One hundred forty five objects were chosen by stratified random sampling method. The investigation was performed u...Read More
Enantioselectivity of monolithic silica stationary phases immobilized with different concentrations cellulose tris (3,5-dimethylphenylcarbamate), analyzed with different mobile phases in capillary electrochromatography.
The 3,5-dimethylphenylcarbamate derivatives of cellulose bearing 3-(triethoxysilyl)propyl residues were immobilized in a capillary format onto a monolithic silica support by intermolecular polycondens...Read More
Transgene transmission in chickens by sperm-mediated gene transfer after seminal plasma removal and exogenous DNA treated with dimethylsulfoxide or N,N-dimethylacetamide.
Transgenic animals have been successfully produced by mass gene transfer techniques such as sperm-mediated gene transfer (SMGT). The aim of this work was to demonstrate transgene transmission by SMGT ...Read More
Cryopreservation of turkey semen by the pellet method: Effects of variables such as the extender, cryoprotectant concentration, cooling time and warming temperature on sperm quality determined through principal components analysis
This study was designed to identify the best pellet cryopreservation procedure for the cryosurvival of turkey semen among 192 different treatments established by variations and permutations of seven c...Read More
Biocompatibility of modified polyethersulfone membranes by blending an amphiphilic triblock co-polymer of poly(vinyl pyrrolidone)-b-poly(methyl methacrylate)-b-poly(vinyl pyrrolidone).
An amphiphilic triblock co-polymer of poly(vinyl pyrrolidone)-b-poly(methyl methacrylate)-b-poly(vinyl pyrrolidone) (PVP-b-PMMA-b-PVP) was synthesized via reversible addition-fragmentation chain trans...Read More
Preferential interactions between lithium chloride and glucan chains in N,N-dimethylacetamide drive cellulose dissolution.
Naturally occurring cellulose is crystalline as a consequence of the strong interactions between the glucan chains that comprise it and therefore is insoluble in most solvents. One of the few solvent ...Read More
Factors that influence the determination of residual solvents in pharmaceuticals by automated static headspace sampling coupled to capillary GC-MS.
The impact of several experimental parameters on static headspace sampling for volatile impurities is discussed. Figures of merit are provided for some common organic solvents dissolved in dimethylace...Read More