Disease relevance of ALUMINUM OXIDE

• The distribution of aqueous Pb(II) sorbed at the interface between Burkholderia cepacia biofilms and hematite (alpha-Fe(2)O(3)) or corundum (alpha-Al(2)O(3)) surfaces has been probed by using an application of the long-period x-ray standing wave technique [1].
• Alumina cream-induced focal motor epilepsy in cats. IV. Thickness and cellularity of layers in the perilesional motor cortex [2].
• Subarachnoid alumina may be a good model for human arachnoiditis [3].
• Ultrathin alumina sol-gel-derived films: allowing direct detection of the liver fibrosis markers by capacitance measurement [4].
• Neuronal hyperactivity does not predict cutaneous hyperesthesia or motor abnormality; alumina produces scarring in the subarachnoid space and probably causes pain by making the dorsal root fibers mechanosensitive [3].

Psychiatry related information on ALUMINUM OXIDE

• EEG operant conditioning in an alumina-gel monkey model (N = 14) to decrease EMG, to increase 9 Hz or decrease 9 Hz, and to increase 23 Hz (18 Hz and 26 Hz in 2 pilot monkeys), respectively, was not consistently beneficial in reducing seizures [5].
• Reaction of 7-amino-3-[5'-methyl-1',3',4'-thiadiazol-2'-ylthiomethyl]cephalo-sporanic acid with heterocyclic amines using basic alumina under microwave irradiation (MWI) afforded new cephalosporin analogs in shorter reaction time with improved yield as compared to conventional heating [6].
• In 12 rhesus monkeys, made epileptic by injection of alumina cream into the temporal lobe structures, the changes of spike frequency were studied in wakefulness and natural sleep on 78 occasions [7].

High impact information on ALUMINUM OXIDE

• There are reports of nanotubes made from silica, alumina, silicon and metals that do not have a layered crystal structure; they are synthesized by using carbon nanotubes and porous membranes as templates, or by thin-film rolling [8].
• The in vitro slice technique was used to study neuronal activity in human cortical tissue removed during neurosurgical procedures for intractable epilepsy and in monkey neocortex rendered epileptogenic by injection of alumina gel [9].
• The enzyme seems to have been solubilized from the mitochondrial membrane fraction by treatment with sodium deoxycholate followed by dialysis and subsequent adsorption by and elution from alumina C gamma [10].
• Synthesis, spectroscopy, and catalytic properties of cationic organozirconium adsorbates on "super acidic" sulfated alumina. "Single-site" heterogeneous catalysts with virtually 100 active sites [11].
• The TEM studies on the sonochemically prepared catalysts indicate the formation of layered hexagonal MoS(2) (lattice fringes approximately 6.2 A) on the alumina support [12].

Chemical compound and disease context of ALUMINUM OXIDE

• Qualitative and quantitative aspects of chronic carbamazepine (Tegretol) medication on focal seizures and associated interictal EEG abnormalities in Rhesus monkeys with alumina-induced foci in either the sensorimotor cortex or the hipocampus was investigated [13].
• Effect of carbachol "push--pull" perfusion in the reticular formation on alumina cream-induced focal motor seizures in cats [14].
• Since virtually all monkeys treated with alumina gel develop seizures, the results of this study add further support to the hypothesis that GABA neuronal loss plays a causal role in focal epilepsy [15].
• The aim of this work is to study catalytic ethanol dehydration using different prepared catalysts, which include Fe(2)O(3), Mn(2)O(3), and calcined physical mixtures of both ferric and manganese oxides with alumina and/or silica gel [16].
• Four yttrium-stabilized alumina ceramic-on-polyethylene articulations obtained from patients who were undergoing revision surgery for sepsis (3) or recurrent dislocation (I) between 34 and 73 months were evaluated to assess their in vivo wear performance [17].

Biological context of ALUMINUM OXIDE

• In the case of hydrolytic interaction of Ach or beta-MeAch, the products of the hydrolysis, acetate ion and choline--the latter also adsorbed in ionic form--were found on the alumina surface [18].
• Detection limits in the analysis of Cy5-labeled IgG are 0.02 ng/mL because of the high surface area of the alumina membrane, and the minimal diameter of the substrate pores results in binding limited by kinetics, not mass transport [19].
• The association of alumina treatment of perfluorocarbon liquids with a reduction in cell growth was indicative of a relationship between the presence of residual hydrogen-containing impurities and the capacity for cellular attachment and growth [20].
• Serum samples with added 14C-labeled bile acid were submitted to deproteinization, alkaline hydrolysis, methylation, and were then chromatographed on alumina before acetylation with 2 microliters of [3H]acetic anhydride [21].
• The dissolution process of Al(2)O(3) at the backside of the pores was monitored by electrical impedance spectroscopy ensuring the desired sieve-like structure of the porous alumina [22].

Anatomical context of ALUMINUM OXIDE

• Ribosomes prepared from bacteria ground with washed sea sand were more immunogenic than those obtained by rupture with alumina or with a Braun homogenizer [23].
• Intramedullary or subarachnoid injections of alumina cream were made in the lumbar region of 38 adult cats [3].
• Purple membranes were adsorbed on freestanding lipid bilayers, termed nano-black lipid membranes (nano-BLMs), suspending the pores of porous alumina substrates with average pore diameters of 280 nm [24].
• A method is described for accurate and reproducible measurement of squalene in plasma, feces, urine, bile, and tissue that depends on isolation by alumina column chromatography after mild saponification and on measurement by gas-liquid chromatography [25].
• Chronic alumina temporal lobe seizures in monkeys [26].

Associations of ALUMINUM OXIDE with other chemical compounds

• The filling behavior of a room temperature solvent, perfluoromethylcyclohexane, in approximately 20 nm nanoporous alumina membranes was investigated in situ with small angle x-ray scattering [27].
• TiO2 nanoparticles are formed by depositing 2 in mesoporous alumina template [28].
• Conjugated dopamine was hydrolyzed in acid to unconjugated dopamine, separated from the sample matrix by alumina chromatography, and assayed by gas chromatography-mass spectrometry [29].
• The approach is illustrated by studying the adsolubilization of benzalkonium homologue (C(12), C(14), C(16)) surfactants (BAS) on sodium dodecyl sulfate (SDS)-coated alumina [30].
• Characterization of aerogel prepared high-surface-area alumina: in situ FTIR study of dehydroxylation and pyridine adsorption [31].
• Amorphous alumina nanotubes were obtained after removing the GaQ3 by dissolving in toluene or by heat treatment at 350 degrees C. The amorphous nanotubes could be crystallized by heating at 900 degrees C for 1 h in vacuum [32].

Gene context of ALUMINUM OXIDE

• Treatment of J744 cells with alumina particles increased TNF-alpha secretion, but the induction was lower when cells were cocultured with osteoblasts [33].
• Coculturing osteoblasts with J744 cells induced them to release IL-6 and GM-CSF, and treatment with alumina further increased the secretion of both mediators by osteoblasts [33].
• Development of new dye-metal agarose-coated alumina matrix and elution strategy for purification of alcohol dehydrogenase [34].
• The hypothesis incorporates findings from both penicillin and alumina models of epilepsy and provides experimentally testable concepts for further investigation [35].
• The off state was obtained by making the membranes hydrophobic by chemisorbing either a C18 silane (alumina membrane) or a C18 thiol (Au nanotube membrane) [36].

Analytical, diagnostic and therapeutic context of ALUMINUM OXIDE

• Alumina has long been regarded as the definitive test for atomic-resolution force microscopy of insulators so the whole class of insulating oxides should now open for direct atomic-scale surface investigations [37].
• In some cases, however, this might not be justified as the present scanning tunneling microscopy studies demonstrate for Au atoms on a thin alumina film on NiAl(110) [38].
• Liquid alumina: detailed atomic coordination determined from neutron diffraction data using empirical potential structure refinement [39].
• The metabolites were separated and isolated from the plasma by the following procedures: a) alumina chromatography, b) modified Brown procedure, and c) gas liquid chromatography [40].
• Development of a detector for liquid chromatography based on aerosol chemiluminescence on porous alumina [41].

References