Acids - Chemistry
Research News and Information

Monday, November 23, 2009

Influence of surface modification on the in vitro corrosion rate of magnesium alloy AZ31.

29 Sep 2009 In recent years, magnesium alloys have been proposed as a new class of metallic bioabsorbable implant material. Unfortunately, the production of hydrogen gas and an increase in alkalinity are both by-products of the degradation process of these ... Read more...

Stability of binary SAMs formed by omega-acid and alcohol functionalized thiol mixtures.

30 Aug 2009 A simple model is presented to describe the mixing process of acid- and alcohol-terminated thiol self-assembled monolayers (SAMs) on Au(111). It was found that the low-concentration acid-terminated SAMs are enriched in acid thiol compared with the ... Read more...

The effect of bulking agents on the chemical stability of acid-sensitive compounds in freeze-dried formulations: sucrose inversion study.

30 Aug 2009 The goal of the study was to evaluate the impact of amorphous bulking agents on the chemical stability of freeze-dried materials. Polyvinylpyrrolidone and dextran of different molecular weights and lactose were used as bulking agents, and sucrose ... Read more...

Latest indexed articles for 'Acids - Chemistry'

These are the very latest articles for this heading:

• Influence of surface modification on the in vitro corrosion rate of magnesium alloy AZ31. 29 Sep 2009
• Stability of binary SAMs formed by omega-acid and alcohol functionalized thiol mixtures. 30 Aug 2009
• The effect of bulking agents on the chemical stability of acid-sensitive compounds in freeze-dried formulations: sucrose inversion study. 30 Aug 2009
• Structural properties of anthocyanins: rearrangement of C-glycosyl-3-deoxyanthocyanidins in acidic aqueous solutions. 10 Aug 2009
• Modeling soil acidification in the Athabasca Oil Sands region, Alberta, Canada. 30 Jul 2009
• Physico/chemical characterization and in vivo evaluation of nanothickness bioceramic depositions on alumina-blasted/acid-etched Ti-6Al-4V implant surfaces. 30 Jul 2009
• Fluorinated acid amplifiers for EUV lithography. 27 Jul 2009
• The effects of a whole-watershed calcium addition on the chemistry of stream storm events at the Hubbard Brook Experimental Forest in NH, USA. 26 Jul 2009
• Two-photon probes for intracellular free metal ions, acidic vesicles, and lipid rafts in live tissues. 19 Jul 2009
• Isotopically exchangeable concentrations of elements having multiple oxidation states: the case of Fe(II)/Fe(III) isotope self-exchange in coastal lowland acid sulfate soils. 13 Jul 2009
• Polarization and polarizability assessed by protein amide acidity. 12 Jul 2009
• Aqueous methods for the preparation of 5'-substituted guanosine derivatives. 4 Jul 2009
• Buffer requirements for enhanced hydrogen production in acidogenic digestion of food wastes. 30 Jun 2009
• In vitro enamel erosion associated with commercially available original-flavor and sour versions of candies. 29 Jun 2009
• Influence of various organic molecules on the reduction of hexavalent chromium mediated by zero-valent iron. 23 Jun 2009
• An acid-labile temperature-responsive sol-gel reversible polymer for enhanced gene delivery to the myocardium and skeletal muscle cells. 21 Jun 2009
• Layered materials with coexisting acidic and basic sites for catalytic one-pot reaction sequences. 15 Jun 2009
• Boerhaavia diffusa: metabolite profiling of a medicinal plant from Nyctaginaceae. 11 Jun 2009
• Acid-induced amino side-chain interactions and secondary structure of solid poly-L-lysine probed by 15N and 13C solid state NMR and ab initio model calculations. 8 Jun 2009
• Microvolume turbidimetry for rapid and sensitive determination of the acid labile sulfide fraction in waters after headspace single-drop microextraction with in situ generation of volatile hydrogen sulfide. 4 Jun 2009

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.