Results 61 to 70 of about 487,838 (354)

Does Koopmans\u27 Paradigm for 1-Electron Oxidation Always Hold? Breakdown of IP/Eox Relationship for p-Hydroquinone Ethers and the Role of Methoxy Group Rotation [PDF]

open access: yes, 2015
Koopmans’ paradigm states that electron loss occurs from HOMO, thus forming the basis for the observed linear relationships between HOMO/IP, HOMO/Eox, and IP/Eox.
Boddeda, Anitha   +3 more
core   +3 more sources

Polybrominated diphenyl ethers: occurrence, dietary exposure, and toxicology.

open access: yesEnvironmental Health Perspectives, 2001
Polybrominated diphenyl ethers (PBDEs) are used as flame retardants in plastics (concentration, 5--30%) and in textile coatings. Commercial products consist predominantly of penta-, octa-, and decabromodiphenyl ether mixtures, and global PBDE production ...
P. Darnerud   +4 more
semanticscholar   +1 more source

Deciphering Small Molecule Diffusion Parameters Across Light Responsive Polymersome Membranes

open access: yesAdvanced Functional Materials, EarlyView.
Light‐responsive polymersomes bearing donor–acceptor Stenhouse adducts (DASAs) enable programmable control over small‐molecule transport across synthetic membranes. By systematically varying DASA density, an optimal functionalization regime is identified that maximizes light‐gated permeability.
Farzina Matubbar   +7 more
wiley   +1 more source

The glyceryl ethers in man and cow*

open access: yesJournal of Lipid Research, 1962
The glyceryl ethers were studied in lipids from human bone marrow, spleen, and milk; from yellow bone marrow and milk of cow; and from the yolk of hens' eggs. The highest concentrations were found in human red bone marrow and in human milk.
Bo Hallgren, Sam Larsson
doaj   +1 more source

Neurobehavioral function and low-level exposure to brominated flame retardants in adolescents : a cross-sectional study [PDF]

open access: yes, 2012
Background: Animal and in vitro studies demonstrated a neurotoxic potential of brominated flame retardants, a group of chemicals used in many household and commercial products to prevent fire.
Baeyens, Willy   +12 more
core   +1 more source

Liquid Phase Transmission Electron Microscopy: A Window into the Early Stages of Complex Material Formation

open access: yesAdvanced Functional Materials, EarlyView.
Liquid‐phase transmission electron microscopy enables direct observation of nucleation and growth processes in solution. This review is dedicated to the remembrance of Helmut Cölfen and highlights recent studies on complex materials—oxides, biominerals, organic–inorganic crystals—which were central to his research activity. It summarizes key milestones,
Charles Sidhoum   +5 more
wiley   +1 more source

Factors Dictating Carbene Formation at (PNP)Ir [PDF]

open access: yes, 2010
The mechanistic subtleties involved with the interaction of an amido/bis(phosphine)-supported (PNP)Ir fragment with a series of linear and cyclic ethers have been investigated using density functional theory.
Ariafard, Alireza   +5 more
core   +1 more source

Permitted daily exposure for diisopropyl ether as a residual solvent in pharmaceuticals [PDF]

open access: yes, 2018
Solvents can be used in the manufacture of medicinal products provided their residual levels in the final product comply with the acceptable limits based on safety data.
Evandri, Maria Grazia, Romanelli, Luca
core   +1 more source

Miscibility of poly(ether ether ketone)/poly(ether diphenyl ether ketone) blends

open access: yesPolymer, 1996
Poly(ether ether ketone) and poly(ether diphenyl ether ketone) homopolymers are prepared by nucleophilic substitution routes. Miscibility of PEEK/PEDEK blends has been studied by wide-angle X-ray diffraction (WAXD) and differential scanning calorimetry (d.s.c.).
Xiang Ling Ji   +2 more
openaire   +1 more source

Bio‐Inspired Magnetically Tunable Structural Colors from Elliptical Self‐Assembled Block Copolymer Microparticles

open access: yesAdvanced Functional Materials, EarlyView.
Cephalopod‐inspired photonic microparticles with dynamic structural coloration are fabricated via confined self‐assembly of linear block copolymers into ellipsoids containing stacked lamellae. Embedded superparamagnetic nanoparticles enable rapid magnetic alignment, restoring vivid, angle‐dependent color.
Gianluca Mazzotta   +8 more
wiley   +1 more source

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