Acids - Research News and Information

Wednesday, January 07, 2009

Biodiesel production from high acid value waste frying oil catalyzed by superacid heteropolyacid.

30 Aug 2008 Transesterification of waste cooking oil with high acid value and high water contents using heteropolyacid H3PW12O40 x 6H2O (PW12) as catalyst was investigated. The hexahydrate form of PW(12) was found to be the most promising catalyst which ... Read more...

Enhancement of the antituberculosis activity of weak acids by inhibitors of energy metabolism but not by anaerobiosis suggests that weak acids act differently from the front-line tuberculosis drug pyrazinamide.

30 Aug 2008 Mycobacterium tuberculosis is uniquely susceptible to weak acids compared with other mycobacteria or bacteria. The antituberculosis activity of the front-line drug pyrazinamide (PZA), a weak acid (pyrazinoic acid) precursor, can be enhanced by ... Read more...

An unusual cause of interference in a salicylate assay caused by mitochondrial acetoacetyl-CoA thiolase deficiency.

30 Aug 2008 Mitochondrial acetoacetyl-CoA thiolase deficiency (or beta-ketothiolase deficiency) is a rare metabolic disorder characterized by acute episodes of severe acidosis and ketosis. A case is presented of an 18-month-old boy who presented with vomiting ... Read more...

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Latest indexed articles for 'Acids'

These are the very latest articles for this heading:

• Biodiesel production from high acid value waste frying oil catalyzed by superacid heteropolyacid. 30 Aug 2008
• Enhancement of the antituberculosis activity of weak acids by inhibitors of energy metabolism but not by anaerobiosis suggests that weak acids act differently from the front-line tuberculosis drug pyrazinamide. 30 Aug 2008
• An unusual cause of interference in a salicylate assay caused by mitochondrial acetoacetyl-CoA thiolase deficiency. 30 Aug 2008
• Susceptibility of selected tooth-coloured dental materials to damage by common erosive acids. 30 Aug 2008
• Structural requirements for PCSK9-mediated degradation of the low-density lipoprotein receptor. 25 Aug 2008
• A Novel synthesis of 2-functionalized benzofurans by palladium-catalyzed cycloisomerization of 2-(1-hydroxyprop-2-ynyl)phenols followed by acid-catalyzed allylic isomerization or allylic nucleophilic substitution. 24 Aug 2008
• Hydroamination: direct addition of amines to alkenes and alkynes. 24 Aug 2008
• Probing force-induced unfolding intermediates of a single staphylococcal nuclease molecule and the effect of ligand binding. 24 Aug 2008
• THAL, a sterically unhindered linker for the solid-phase synthesis of acid-sensitive protected peptide acids. 20 Aug 2008
• Mechanisms of acid decomposition of dithiocarbamates. 5. Piperidyl dithiocarbamate and analogues. 20 Aug 2008
• Kinetics and mechanism of oxidation of N, N'-dimethylaminoiminomethanesulfinic acid by acidic bromate. 18 Aug 2008
• Immobilized metal affinity chromatography revisited: pH/acid control toward high selectivity in phosphoproteomics. 14 Aug 2008
• Carbon metabolism of the moderately acid-tolerant acetogen Clostridium drakei isolated from peat. 13 Aug 2008
• Hyperthermia and acidification stimulate mechano-growth factor synthesis in murine myoblasts and myotubes. 11 Aug 2008
• RNA arbitrarily primed PCR and fourier transform infrared spectroscopy reveal plasticity in the acid tolerance response of Streptococcus macedonicus. 6 Aug 2008
• Selective halogenation at the pnictogen atom in Lewis-acid/base-stabilised phosphanylboranes and arsanylboranes. 4 Aug 2008
• Spin-spin coupling across intermolecular F-Cl...N halogen bonds. 3 Aug 2008
• RXP-E: a connexin43-binding peptide that prevents action potential propagation block. 29 Jul 2008
• In vitro antifungal activity of polyfunctionalized 2-(hetero)arylquinolines prepared through imino Diels-Alder reactions. 27 Jul 2008
• Membrane domain-disrupting effects of 4-substitued cholesterol derivatives. 24 Jul 2008

See a longer list of these articles.

Technical information about 'Acids'

Definition: Chemical compounds which yield hydrogen ions or protons when dissolved in water, whose hydrogen can be replaced by metals or basic radicals, or which react with bases to form salts and water (neutralization). An extension of the term includes substances dissolved in media other than water. (Grant & Hackh's Chemical Dictionary, 5th ed)

Registry Number: 0

Descriptor UI: D000143

Alternative terms: Acids;

Allowable Qualifiers: administration & dosage; adverse effects; analysis; antagonists & inhibitors; blood; cerebrospinal fluid; chemical synthesis; classification; diagnostic use; economics; history; immunology; isolation & purification; metabolism; pharmacokinetics; pharmacology; poisoning; radiation effects; standards; supply & distribution; therapeutic use; toxicity; urine; chemistry; contraindications; agonists;

Tree Number: D01.029;

Technical Notes: GEN; avoid; do not use for specific acids, acid-fast bacteria, acid reactions, etc.