The rheological behaviour of aqueous suspensions of boehmite (AlO(OH)) modified with different Ce-salts (Ce(NO(3))(3), CeCl(3), Ce(CH(3)COO)(3) and Ce(2)(SO(4))(3)) was investigated at a fixed Ce/Al molar ratio (0.05). Freshly prepared boehmite suspensions were near-Newtonian and time-independent. A shear-sensitive thixotropic network developed when Ce-salts with monovalent anions were introduc...

This work explores the conditions for safe heat treatment of aluminum alloys containing lithium and magnesium in molten sodium nitrate (NaNO3) bath furnaces, where industrial accidents may occur. Using calorimetry coupled to classical thermodynamics, strength thermodynamics when analyzing thermal curves was demonstrated through a series small-scale analyses various contact with nitrate. system ...

The neutral copper aluminum cluster complex Al12CuM3 [M = K, K3O, and K(2,2,2-crypt)] has been investigated at the PBE96 level of theory. It is found that Al12Cu could be considered a superatom mimic of a phosphorus atom. It shows large electron affinity and is able to receive three electrons from elements or compounds with low ionization energies like K, K3O, or K(2,2,2-crypt) to become a stab...

Toxic effects due to high aluminum body loads were observed in a number of conditions following ingestion of Al-containing antacids. Bio-availability of aluminum depends not only on the solubility of the ingested salt but also on the physico-chemical properties of the soluble Al complexes formed in body fluids. Amino acids may, upon interaction with Al-salts, form absorbable Al-complexes. Hence...

Intrathecal administration of aluminum (AI) salts to susceptible species causes prominent accumulations of neurofilaments (NFs) in neurons of the CNS. Involved nerve cells display abnormal phosphorylation of perikaryal NFs, impaired axonal transport of NFs, and reduced levels of mRNA for NF proteins. Further understanding of the pathogenesis of AI toxicity has been limited by difficulties inher...

A second hexokinase (EC 2.7.1.1) was obtained from pea seed (Pisum sativum L. var. Progress No. 9) extracts. The enzyme, termed hexokinase II, had a high affinity (K(m), 48 micromolar) for glucose and a relatively low affinity (K(m), 10 millimolar) for fructose. The K(m) for MgATP was 86 micromolar. Mg(2+) was required for activity, but excess Mg(2+) was inhibitory. MgADP inhibited hexokinase I...

Aluminum salts have been widely used in vaccine formulations and, after their introduction more than 80 years ago, only few vaccine formulations using new adjuvants were developed in the last two decades. Recent advances in the understanding of how innate mechanisms influence the adaptive immunity opened up the possibility for the development of new adjuvants in a more rational design. The purp...