Results 11 to 20 of about 91,721 (252)

Synthesis and characterizations of a novel composite films composed of polyethylene/oxide minerals

Next Materials, 2023
In this study, a new composite film consisting of polyethylene (PE)/oxide minerals (bentonite, silica, and diatomite) was successfully synthesized. Polymer modification was carried out by melting method.
Emine Kadioglu, Ozkan Demirbas, Mehmet Salih Nas, Mehmet Harbi Calimli, Muhammed Bekmezci, Fatih Sen   +5 more
doaj   +1 more source

Ion Pair−π Interactions

Journal of the American Chemical Society, 2015
We report that anion-π and cation-π interactions can occur on the same aromatic surface. Interactions of this type are referred to as ion pair-π interactions. Their existence, nature, and significance are elaborated in the context of spectral tuning, ion binding in solution, and activation of cell-penetrating peptides.
Fujisawa Kaori, Humbert-Droz Marie, Letrun Romain, Vauthey Eric, Wesolowski Tomasz A., Sakai Naomi, Matile Stefan   +6 more
openaire   +4 more sources

Synergistic effect of K+ and PANI in vanadium oxide hydration by interlayer engineering boosts the ammonium ion storage

SusMat, 2023
Aqueous ammonium‐ion (NH4+) hybrid supercapacitor (AA‐HSC), as a new type of energy storage device with great potential, is in the initial stage of rapid development.
Xingyu Chen, Ziying Feng, Xueying Dong, Hanmei Jiang, Changgong Meng, Yifu Zhang   +5 more
doaj   +1 more source

Use of a Mixed Cationic-Reverse Phase Column for Analyzing Small Highly Polar Metabolic Markers in Biological Fluids for Multiclass LC-HRMS Method

Applied Sciences, 2020
The determination of small highly polar metabolites at low concentrations is challenging when reverse-phase (RP) chromatography is used for multiclass analysis.
Marco Roverso, Iole Maria Di Gangi, Gabriella Favaro, Paolo Pastore, Sara Bogialli   +4 more
doaj   +1 more source

Superconductors as giant atoms: qualitative aspects [PDF]

, 2003
When the Fermi level is near the top of a band the carriers (holes) are maximally dressed by electron-ion and electron-electron interactions. The theory of hole superconductivity predicts that only in that case can superconductivity occur, and that it is
Hirsch, J. E.
core   +2 more sources

Capillary zone electrophoretic studies of ion association between inorganic anions and tetraalkylammonium ions in aqueous-dioxane media [PDF]

, 2005
Ion association between inorganic anions and symmetrical tetraalkylammonium ions, R4N+ (R = Me, Et, Pr, n-Bu, n-Am, and 2-methyl butyl {isoamyl = iAm}) was investigated using ordinary silica capillary by capillary zone electrophoresis.
Akerlof, Bjerrum, Bjørnsdottir, Critchfield, Davies, Debye, Denison, Descroix, Descroix, Ebeling, Fuoss, Fuoss, Hogfeldt, Jouyban, Julius Mbuna, Krienke, Manege, Mbuna, Mbuna, Mitsuko Oshima, Motomizu, Mukherjes, Nanchollas, Popa, Porras, Porras, Roy, Roy, Shoji Motomizu, Stern, Takayanagi, Takayanagi, Takayanagi, Takayanagi, Takayanagi, Takayanagi, Toshio Takayanagi, Williams, Yokoyama   +38 more
core   +1 more source

Cooperative Noncovalent Interactions Induce Ion Pair Separation in Diphenylsilanides

Chemistry – A European Journal, 2017
AbstractThis crystallographic and computational study describes an unusual potassium silanide structure. A contact ion pair is expected in the solid state between potassium and silicon, yet the potassium cation binds an aromatic ring and the anionic silanide interacts with CH bonds on neighboring crown ether molecules. These structure‐bonding phenomena
Eric A. Marro, Eric M. Press, Tapas K. Purkait, Daniel Jimenez, Maxime A. Siegler, Rebekka S. Klausen   +5 more
openaire   +3 more sources

Preconcentration of copper from natural water samples using ligand-less in situ surfactant-based solid phase extraction prior to FAAS determination

Química Nova, 2014
In the present work, a simple and rapid ligand-less, in situ, surfactant-based solid phase extraction for the preconcentration of copper in water samples was developed.
Sayed Zia Mohammadi, Daryoush Afzali, Fatemeh Sabermahani, Samira Afshari   +3 more
doaj   +1 more source

Bosonic Spectral Function and The Electron-Phonon Interaction in HTSC Cuprates [PDF]

, 2010
In Part I we discuss accumulating experimental evidence related to the structure and origin of the bosonic spectral function in high-temperature superconducting (HTSC) cuprates at and near optimal doping.
Dolgov, O. V., Kulic, M. L., Maksimov, E. G.   +2 more
core   +4 more sources

IDPM: an online database for ion distribution in protein molecules

BMC Bioinformatics, 2018
Background Interactions between ions and proteins have been extensively studied, yet most of the studies focus on the ion binding site. The binding mechanism for many ion binding sites can be clearly described from high resolution structures.
Xilun Xiang, Haiguang Liu
doaj   +1 more source