Permeability of Uranyl Ions across Ion Exchange Membranes
نویسندگان
چکیده
منابع مشابه
Oxygen exchange in uranyl hydroxide via two "nonclassical" ions.
A recently proposed pathway for the scrambling of axial (uranyl) and equatorial O atoms in [UO(2)(OH)(4)](2-) (1) is refined using Car-Parrinello molecular dynamics (CPMD) simulations in an explicit solvent (water) and with model counterions (NH(4)(+)). According to constrained CPMD/BLYP simulations and thermodynamic integration, 1 can be deprotonated to [UO(3)(OH)(3)](3-) with a T-shaped UO(3)...
متن کاملSTUDIES ON PERMEABILITY OF MEMBRANES. I . INTRODUCTION AND TIlE DIFFUSION OF IONS ACROSS TIlE DRIED
When the different investigations on membrane potentials are taken into consideration, it seems that the theory of these potentials may be treated in three different ways. We may distinguish (a) phase boundary potentials, (b) ndxed electrode potentials, (c) diffusion potentials. The first theory assumes that the potential difference of each side of the membrane against the adjacent solution con...
متن کاملTransport of ions across cellular membranes.
‘active transport,’ it may be useful to define the term in an unequivocal way. In accordance with Rosenberg (I z I), the term ‘transport’ or ‘active transport’ will be taken to mean a transfer of a substance against a chemical potential gradient. This definition is rather narrow; for instance, cases where a substance is found to pass faster along the concentration gradient than would be expecte...
متن کاملElectrodialysis of Blood Using Ion-Exchange Membranes
THE correction of electrolyte imbalance and the removal of retention products of the blood during renal failure is at present achieved by the use of artificial kidneys which permit the diffusion of solutes through a semi-permeable membrane. Several types of apparatus used successfully for hemodialysis include those described by Kolff and Watschinger (1956) and Alwall, Norviit, and Steins (1948)...
متن کاملMechanism of ion transport across bilayer membranes
Introduction The facilitated transport of ions and polar molecules across biological membranes is essential for normal cell function and is also a major objective in the rapidly growing field of drug delivery. Researchers strive to simulate naturally occurring channel-forming proteins or carrier molecules. The resultant compounds may utilize endogenous peptide sequences or may be novel organic ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Journal of the Society of Chemical Industry, Japan
سال: 1962
ISSN: 0023-2734,2185-0860
DOI: 10.1246/nikkashi1898.65.6_1006