Enhanced Anion Exchange for Selective Sulfate Extraction: Overcoming the Hofmeister Bias
نویسندگان
چکیده
منابع مشابه
Contra-Hofmeister anion extraction by cyclosteroidal receptors.
Steroid-based receptors with enclosed binding sites, formed from quaternary ammonium and macrocyclic bis-urea units, can substantially override the Hofmeister series in anion phase transfer experiments.
متن کاملSulfate anion stabilization of native ribonuclease A both by anion binding and by the Hofmeister effect.
Data are reported for T(m), the temperature midpoint of the thermal unfolding curve, of ribonuclease A, versus pH (range 2-9) and salt concentration (range 0-1 M) for two salts, Na(2)SO(4) and NaCl. The results show stabilization by sulfate via anion-specific binding in the concentration range 0-0.1 M and via the Hofmeister effect in the concentration range 0.1-1.0 M. The increase in T(m) cause...
متن کاملSquaramide-based tripodal receptors for selective recognition of sulfate anion.
Squaramide-based tripodal anion receptors have been prepared and their anion binding properties with various inorganic anions were investigated. Receptor formed a dimeric complex in solid state and a 1 : 1 complex in solution with SO(4)(2-). All receptors could selectively encapsulate SO(4)(2-)via hydrogen bonds over other examined anions.
متن کاملNegatively charged purification tags for selective anion-exchange recovery.
A novel strategy for the highly selective purification of recombinant fusion proteins using negatively charged protein domains, which were constructed by protein design, is described. A triple alpha-helical domain of 58 amino acids was used as scaffold. Far-ultraviolet circular dichroism measurements showed that the designed domains had very low alpha-helicity in a low-conductivity environment ...
متن کاملOn the mechanism of irradiation - enhanced exchange bias
– By means of layer resolved ion irradiation the mechanisms involved in the irradiation driven modifications of the exchange bias effect in NiFe/FeMn bilayers have been investigated. It is shown that not only the locations of the defects but also the magnetic coupling between both layers during the irradiation process is of crucial importance. This requires an extension of current models accoun...
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: Journal of the American Chemical Society
سال: 2008
ISSN: 0002-7863,1520-5126
DOI: 10.1021/ja806511b