Results 251 to 260 of about 1,616,660 (303)
Some of the next articles are maybe not open access.
Ammonia−Water Cation and Ammonia Dimer Cation
The Journal of Physical Chemistry A, 2009We have investigated the structure, interaction energy, electronic properties, and IR spectra of the ammonia-water cation (NH(3)H(2)O)(+) using density functional theory (DFT) and high-level ab initio theory. The ammonia-water cation has three minimum-energy structures of (a) H(2)NH(+)...OH(2), (b) H(3)N(+)...OH(2), and (c) H(3)NH(+)...OH.
KIM, H, LEE, HM, null
openaire +3 more sources
2009
Magnetoliposomes (MLs) consist of nanosized, magnetisable iron oxide cores (magnetite, Fe(3)O(4)) which are individually enveloped by a bilayer of phospholipid molecules. To generate these structures, the so-called water-compatible magnetic fluid is first synthesized by co-precipitation of Fe(2+) and Fe(3+) salts with ammonia and the resulting cores ...
Marcel, De Cuyper, Stefaan J H, Soenen
openaire +2 more sources
Magnetoliposomes (MLs) consist of nanosized, magnetisable iron oxide cores (magnetite, Fe(3)O(4)) which are individually enveloped by a bilayer of phospholipid molecules. To generate these structures, the so-called water-compatible magnetic fluid is first synthesized by co-precipitation of Fe(2+) and Fe(3+) salts with ammonia and the resulting cores ...
Marcel, De Cuyper, Stefaan J H, Soenen
openaire +2 more sources
2012
Denaturing, discontinuous electrophoresis in the presence of SDS has become a standard method for the protein scientist. However, there are situations where this method produces suboptimal results. In these cases, electrophoresis in the presence of positively charged detergents such as cetyltrimethylammonium bromide (CTAB) may work considerably better.
openaire +3 more sources
Denaturing, discontinuous electrophoresis in the presence of SDS has become a standard method for the protein scientist. However, there are situations where this method produces suboptimal results. In these cases, electrophoresis in the presence of positively charged detergents such as cetyltrimethylammonium bromide (CTAB) may work considerably better.
openaire +3 more sources
Current Medicinal Chemistry, 2003
This review focuses on the recent developments in study of cationic lipids as carriers for DNA delivery. Emphasis is placed on a class of compounds as exemplifies by their similarity in structures and transfection activities. The technical aspects are also reviewed on how to prepare DNA-lipid complexes and to perform transfection. A brief discussion of
Dexi, Liu, Tan, Ren, Xiang, Gao
openaire +2 more sources
This review focuses on the recent developments in study of cationic lipids as carriers for DNA delivery. Emphasis is placed on a class of compounds as exemplifies by their similarity in structures and transfection activities. The technical aspects are also reviewed on how to prepare DNA-lipid complexes and to perform transfection. A brief discussion of
Dexi, Liu, Tan, Ren, Xiang, Gao
openaire +2 more sources
Cation−Cation Interactions between Uranyl Cations in a Polar Open-Framework Uranyl Periodate
Journal of the American Chemical Society, 2004AbstractFor Abstract see ChemInform Abstract in Full Text.
Tyler A, Sullens +3 more
openaire +2 more sources
Cation-selective electropreconcentration
Lab Chip, 2014A cation-selective microfluidic sample preconcentration system is described using anion-permselective TMSVE- or polyE-323-coated nanochannels or a positively charged nanoporous polymer (PDADMAC) placed between positively-surface-coated microchannels.
Il Hyung, Shin +4 more
openaire +2 more sources
Chemical Communications, 2019
Thermally stable hydridozinc cation catalytically converts CO2 to PhSi(OCHO)3 using PhSiH3 in the presence of a mild Lewis acid BPh3.
Raju Chambenahalli +4 more
openaire +2 more sources
Thermally stable hydridozinc cation catalytically converts CO2 to PhSi(OCHO)3 using PhSiH3 in the presence of a mild Lewis acid BPh3.
Raju Chambenahalli +4 more
openaire +2 more sources
Dalton Transactions, 2008
One electron oxidation of dialkyl diselenides and ditellurides is achieved with NO(+)CF(3)SO(3)(-). According to ab initio calculations the radical cations have a trans stucture. In the solid state they dimerize to rectangular units [R-Te](4)(2+) and [R-Se](4)(2+). The long SeSe and TeTe bond is obviously due to a pi*-pi* interaction.
Birgit, Mueller +2 more
openaire +2 more sources
One electron oxidation of dialkyl diselenides and ditellurides is achieved with NO(+)CF(3)SO(3)(-). According to ab initio calculations the radical cations have a trans stucture. In the solid state they dimerize to rectangular units [R-Te](4)(2+) and [R-Se](4)(2+). The long SeSe and TeTe bond is obviously due to a pi*-pi* interaction.
Birgit, Mueller +2 more
openaire +2 more sources
Chemical Communications, 2013
The synthesis in 1985 by the group led by Tony McKervey of numerous calix[4]arene derivatives capable of acting as neutral, multidentate ligands proved to be a seminal step in the development of various applications of calixarenes as metal-ion binding agents.
openaire +2 more sources
The synthesis in 1985 by the group led by Tony McKervey of numerous calix[4]arene derivatives capable of acting as neutral, multidentate ligands proved to be a seminal step in the development of various applications of calixarenes as metal-ion binding agents.
openaire +2 more sources
2003
Over the last 15 years, a number of transporters that translocate organic cations were characterized functionally and also identified on the molecular level. Organic cations include endogenous compounds such as monoamine neurotransmitters, choline, and coenzymes, but also numerous drugs and xenobiotics.
H, Koepsell, B M, Schmitt, V, Gorboulev
openaire +2 more sources
Over the last 15 years, a number of transporters that translocate organic cations were characterized functionally and also identified on the molecular level. Organic cations include endogenous compounds such as monoamine neurotransmitters, choline, and coenzymes, but also numerous drugs and xenobiotics.
H, Koepsell, B M, Schmitt, V, Gorboulev
openaire +2 more sources