Enhancer structure

Neudert R, Penk M (1996) Enhanced structure elucidation. J Chem Inf Comput Sci 36 244... 

Resonance Raman scattering, 21 326-327 Resonance stabilization of benzene, 3 599 Resonance theory, 20 774 Resonant cavity, 14 851 Resonant-cavity enhanced structures,... 

The calculations of the stmcture of water between charged flat walls show that the density profile becomes asymmetric and that there is enhanced structuring. This enhanced structuring is intimately connected with the possibility of a continuous phase transition in quasi two-dimensional systems, a subject of recent intense interest. ° Most of the molecular dynamics computer simulations on the effects of an external field have been carried out in an attempt to clarify the field-induced restructuring of water molecules at the metal surface, for which recent experimental data have become available. ... 

Flow of electrons away from the iron will place a positive charge (effective) on Fe. The trans cyanide group in 8 (L = C6H5CH2NC, L" = CN) competes for the same set of orbitals and since it is a strong electron donor toward iron, it renders iron least positive and therefore enhances structure 8. Since the inductive effect is presumably small and since one aromatic ring in II appears more reactive toward N02 than the others, hypothesis 2 is the more probable one. A... 

Bisphenol A diglycidyl ether [1675-54-3] reacts readily with methacrylic acid [71 49 4] in the presence of benzyl dimethyl amine catalyst to produce bisphenol epoxy dimethacrylate resins known commercially as vinyl esters. The resins display beneficial tensile properties that provide enhanced structural performance, especially in filament-wound glass-reinforced composites. The resins can be modified extensively to alter properties by extending the diepoxide with bisphenol A, phenol novolak, or carboxyl-terminated mbbers. 

Swenson, E.S., W.B. Milisen, and W. Curatolo. 1994. Intestinal permeability enhancement Structure-activity and structure-toxicity relationships for nonylphenoxypolyoxyethylene surfactant permeability enhancers. Pharm Res 11 1501. 

Vavrova, K., et al. 2003. Synthetic ceramide analogues as skin permeation enhancers Structure-activity relationships. Bioorg Med Chem 24 5381. 

Duizer, E., et al. 1998. Absorption enhancement, structural changes in tight junctions and cytotoxicity caused by palmitoyl carnitine in Caco-2 and IEC-18 cells. J Pharmacol Exp Ther 287 395. 

Sano T, Pandori MW, Chen X, Smith CL, Cantor CR. Recombinant core streptavidins. A minimum-sized core streptavidin has enhanced structural stability and higher accessibility to biotinylated macromolecules. J Biol Chem 1995 270(47) 28204—28209. 

Since this class of supramolecular assemblies is represented by a small number of examples due to the enhanced structural intricacy and synthetic complexity, we shall present both chiral and achiral dimeric/oligomeric porphyrinoid-based systems in one section. 

Swenson ES, Milisen WB, Curatolo W (1994) Intestinal permeability enhancement structure-activity and structure-toxicity relationships for nonylphenoxypolyoxyethylene surfactant permeability enhancers. Pharm Res 11 1501-1504 Tomita M, Hayashi M, Horie T, Ishizawa T, Awazu S (1988) Enhancement of colonic drug absorption by the transcellular permeation route. Pharm Res 5 786-789 Tomita M, Sawada T, Ogawa T, Ouchi H, Hayashi M, Awazu S (1992) Differences in the enhancing effects of sodium caprate on colonic and jejunal drug absorption. Pharm Res 9 648-653... 

There have been only a few reports of mesostructured metal sulfides. Mesoporous cadmium sulfide was prepared from polyethylene oxide surfactants and cadmium salts exposed to hydrogen sulfide [35], A study of the effects of the counter-anion on the formation of CdS mesostructures led to the conclusion that the use of cadmium nitrate and perchlorate salts improved the degree of order of the mesostructure over the chloride, sulfate and acetate salts. This effect was attributed to the stronger acidity of conjugate acid by-products of the reaction in the case of nitrates that leads to the dissolution of high-energy defects and enhances structural order. 

Nature accomplishes many syntheses-even those of complex molecules-by sequences of elementary steps. In the last few decades, the blueprint of catalyzed cascade reactions has found fertile soil through the advent of transition metal catalysis in laboratories. Scrutinizing catalytic cycles and mechanistic insight has paved the way for designing new sequential transformations catalyzed by transition metal complexes in a consecutive or domino fashion. In particular, transition metal-catalyzed sequences considerably enhance structural complexity by multiple iterations of organometalhc elementary steps. All this has fundamentally revolutionized synthetic strategies and conceptual thinking. 

Ferritin induced nanoparticle synthesis was adapted from a number of different synthetic strategies reliant upon the physical nature of ferritin. For instance, ferritin can readily exist in two stable forms (native ferritin with an intact iron oxide core or apo-ferritin lacking a mineral core) owing to the enhanced structural integrity of the protein shell. As a result, two general reaction schemes were adopted. The first route utilized the iron oxide core of native or reconstituted ferritin as a precursor to different mineral phases and types of iron nanoparticles, while the second invokes mineralization within the empty cavity of apo-ferritin. In the latter approach, the native protein must be demetallated by reductive dissolution with thioglycolic acid to yield apo-ferritin. Ultimately, apo-ferritin provides a widely applicable means to the synthesis of various nanoparticle compositions under many conditions. 

Doped spinel manganese oxides in which Mn + is substituted by other trivalent cations, e.g., AE+, Fe +, Ni +, Co +, or Cr +, have been also investigated they display enhanced structural stability but decreased specific capacity as compared with the undoped LiMn204. These compounds are also classified as high-voltage positive electrode materials because they can operate above 4.5 V vs. Li/Li+ (Table 5) [135]. 

Techniques for Enhancing Structural Information from High-Performance liquid Chromatography/Mass Spectrometry... 

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