Nomenclature of tetrapyrroles (Recommendations 1986)
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Kinetics of Uptake, Retention, and Radiotoxicity of 125 IUdR in Mammalian Cells: Implications of Localized Energy Deposition by Auger Processes
The kinetics of uptake, retention, and radiotoxicity of 125IUdR have been studied in proliferating mammalian cells in culture. The radioactivity incorporated into the DNA is directly proportional to the duration of incubation and to the extracellular concentration of 125I. The rate of proliferation of cells is related…
X-Ray photoemission study of plasma modified polyethylene surfaces
X-Ray photoelectron spectroscopy (XPS) was used to determine plasma induced chemical species on the surface of polyethylene (PE). Argon plasmas were found to have no detectable chemical effect on the PE surface, whereas oxygen and nitrogen plasmas created new chemical species which altered the chemical reactivity of t…
The effect of polydispersity on the crystallization of hard spherical colloids
To crystallize, spherical colloidal particles must not have too broad a spread of size (or polydispersity). Here it is pointed out that the findings of recent calculations and computer simulations concerning the effects of polydispersity on the crystallization of hard spherical particles are simplified considerably if…
Interactions of hydrogen and deuterium with silica optical fibers: A review
This paper reviews all the interactions of hydrogen and deuterium with silica-based optical fibers. Included in the discussion are H2overtone absorption, OH formation, increased UV and IR absorption, radiation effects on H2-treated fibers, the gas-in-glass laser and applications, the reduction of OH absorption by isot…
Diffusion induced grain boundary migration
Diffusion induced grain boundary migration (DIGM) is a phenomenon in which the sideways migration of grain boundaries accompanies the diffusion of solute along them. This results in the deposition of solute in, or its removal from, the matrix through which the boundaries sweep. In this review, the detailed phenomenolo…
Sonochemistry. Part2—Synthetic applications
The first page of this article is displayed as the abstract.
Influence of oxidation and protonation on the electrical conductivity of polyaniline
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTInfluence of oxidation and protonation on the electrical conductivity of polyanilinePeter M. McManus, Richard J. Cushman, and Sze Cheng. YangCite this: J. Phys. Chem. 1987, 91, 3, 744–747Publication Date (Print):January 1, 1987Publication History Published online1 May 2002Pu…
A compilation of accurate structural parameters for KDP and DKDP, and a users' guide to their crystal structures
Accurate fractional coordinates, (harmonic) thermal parameters and lattice parameters are presented for KDP (KH2PO4) at 293 K, Tc + 5 K and Tc - 20 K, and for ∼95% deuterated DKDP (KD2PO4) at 293 K, Tc + 5 K and Tc - 10 K; and also for KDP and DKDP at 16.5 kbar (at 293 K). The fractional coordinates and thermal parame…
The effect of activating ligands on the intrinsic fluorescence of guanine nucleotide-binding regulatory proteins.
The intensity of the tryptophan fluorescence of the alpha subunits of guanine nucleotide-binding regulatory proteins increases when they bind guanosine 5'-O-(3-thio)triphosphate (GTY gamma S). The kinetics of the fluorescence enhancement and of the measured binding of [35S]GTP gamma S are well correlated. The addition…
Magnetism of manganese(II)copper(II) and nickel(II)copper(II) ordered bimetallic chains. Crystal structure of MnCu(pba)(H2O)3.2H2O (pba = 1,3-propylenebis(oxamato))
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMagnetism of manganese(II)copper(II) and nickel(II)copper(II) ordered bimetallic chains. Crystal structure of MnCu(pba)(H2O)3.2H2O (pba = 1,3-propylenebis(oxamato))Yu Pei, Michel Verdaguer, Olivier Kahn, Jorunn Sletten, and Jean Pierre RenardCite this: Inorg. Chem. 1987, 26,…
Solitons in polyacetylene
Polyacetylene is presented both as a prototype conducting polymer and as a prototype one-dimensional metal and semiconductor. The concepts of the physics of one-dimensional metals are demonstrated on idealized polyacetylene. A review of the chemical and physical properties of real polyacetylene is given and experiment…
Control of Liquid‐Phase‐Enhanced Discontinuous Grain Growth in Barium Titanate
Barium titanate shows discontinuous grain growth in the presence of small amounts of the liquid eutectic Ba 6 Ti 17 O 40 ‐BaTiO 3 at T > 1312°C. The exaggerated grain growth in the presence of the liquid phase can be explained in terms of a solution‐segregation process. The grain size distribution of sintered BaTiO…
A Vibrational Study of Lithium Borate Glasses with High Li2o Content
Journal URL: http://www.societyofglasstechnology.org.uk/cgi-bin/open.cgi?page=%20PC/PC-00a&sessionid=85597106; http://www.societyofglasstechnology.org.uk/cgi-bin/open.cgi?page=journal&sessionid=85597106
Thermal characterization of poly(acrylic acid)
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThermal characterization of poly(acrylic acid)J. J. Maurer, D. J. Eustace, and C. T. RatcliffeCite this: Macromolecules 1987, 20, 1, 196–202Publication Date (Print):January 1, 1987Publication History Published online1 May 2002Published inissue 1 January 1987https://pubs.acs.…
Solid‐state NMR Evidence of 4‐, 5, and 6‐Fold Aluminum Sites in Roller‐Quenched SiO 2 ‐A1 2 O 3 Glasses
The structures of roller‐quenched SiO 2 ‐Al 2 O 3 glasses containing 10 to 50 wt% Al 2 O 3 were investigated by TEM and high‐resolution 27 Al and 29 Si magic angle sample spinning nuclear magnetic resonance (MASS‐NMR) spectroscopy. The chemical shifts observed in the NMR spectra of these phase‐separated (on the TEM sc…
Ferrite particles: a superparamagnetic MR contrast agent for the reticuloendothelial system.
The potential of superparamagnetic ferrite particles as a contrast agent for magnetic resonance (MR) imaging was studied by in vitro MR spectroscopy and in vivo MR imaging in laboratory animals. After aqueous preparations of ferrite particles were administered intravenously, MR spectroscopy showed greatly decreased T2…
Time-Resolved Fluorescence of Lanthanide Probes and Applications in Biotechnology
The relaxation of excited molecular states is often followed by the emission of light. Molecular excited states are related to the orbital, vibrational, and rotational levels of the orbital electrons. In addition, the electron spin determines the singlet and triplet states. In the singlet state the spin of an electron…
Stochastic random network model in Ge and Si chalcogenide glasses
A stochastic random network model is proposed for the structure of ${\mathrm{Ge}}_{\mathrm{x}}$${\mathrm{S}}_{1\mathrm{\ensuremath{-}}\mathrm{x}}$, ${\mathrm{Ge}}_{\mathrm{x}}$${\mathrm{Se}}_{1\mathrm{\ensuremath{-}}\mathrm{x}}$, ${\mathrm{Si}}_{\mathrm{x}}$${\mathrm{S}}_{1\mathrm{\ensuremath{-}}\mathrm{x}}$, and ${\m…
Icosahedral Boron-Rich Solids
Boron-rich molecules and solids hold a special place within chemistry. They do not follow the general bonding rules we are taught in chemistry classes. For example, some boron-rich solids are composed of 12-atom clusters of boron atoms in which each boron atom resides on a vertex of an icosahedron. These solids are ve…