Theoretical spectroscopy of floppy peptides at room temperature. A DFTMD perspective: gas and aqueous phase

2010 ◽  
Vol 12 (14) ◽  
pp. 3336 ◽  
Author(s):  
Marie-Pierre Gaigeot
Keyword(s):  
Aqueous Phase ◽  
Room Temperature ◽  
Theoretical Spectroscopy

Aqueous‐Phase Synthesis of Size‐Tunable PbSe Nanocubes at Room Temperature for Optical Property Characterization

2018 ◽  
Vol 25 (1) ◽  
pp. 367-372 ◽  
Author(s):  
Ming‐Shu Chiu ◽  
Chun‐Chieh Lin ◽  
An‐Ting Lee ◽  
Yi‐Chuan Huang ◽  
Michael H. Huang
Keyword(s):  
Optical Property ◽  
Aqueous Phase ◽  
Room Temperature ◽  
Phase Synthesis ◽  
Property Characterization

ChemInform Abstract: Metal-Free Chemoselective Oxidation of Sulfides to Sulfoxides Catalyzed by Immobilized Taurine and Homotaurine in Aqueous Phase at Room Temperature.

ChemInform ◽  
2015 ◽  
Vol 46 (44) ◽  
pp. no-no
Author(s):  
Hai-Min Shen ◽  
Wen-Jie Zhou ◽  
Hong-Ke Wu ◽  
Wu-Bin Yu ◽  
Ning Ai ◽  
...  
Keyword(s):  
Aqueous Phase ◽  
Room Temperature ◽  
Metal Free ◽  
Oxidation Of Sulfides

Evidence of Radiolytic Oxidation of 241Am in Na+ / Cl− / HCO−3/ CO2−3 Media.

1992 ◽  
Vol 294 ◽  
Author(s):  
Eric Giffaut ◽  
Pierre Vitorge
Keyword(s):  
Aqueous Phase ◽  
Waste Disposal ◽  
Metallic Iron ◽  
Room Temperature ◽  
Extraction Methods ◽  
Slow Kinetics ◽  
Solid Phases ◽  
Radiolytic Oxidation ◽  
Chemical Conditions ◽  
Kinetics Of

ABSTRACTThis paper examines Americium behaviour in CI− media at room temperature in connection with environmental and waste disposal programs. Most published values on U, Np, Pu and Am complexation in chloride media have been determined using extraction methods. Spectrophotometric techniques are not sensitive enough to prove actinide complexation by chloride, which is confirmed in this paper for Am(III).Am(OH)3(s), AmOHCO3(s), Am2(CO3)3(s) or NaAm(CO3)2(s) solid phases can control the Am solubility, depending on the chemical conditions of the aqueous phase (usually PCO2). 241Am solubility is here found to be higher in NaCl 4M media than in NaCl 0.1 M (up to 3 orders of magnitude). Addition of a reducing agent (metallic iron) lowers the solubility. After a week, solubilities in NaCl 0.1 M and 4 M are similar. These results are consistent with Am(III) radiolytic oxidation to Am(V), due to cc radiations. Little evidence of Cl− or mixed Cl−-CO2−3 complexes is found in these conditions. In Na+-OH−-Cl− media, 241Am(III) oxidation had also been proposed. Slow kinetics of precipitation could induce experimental uncertainities.

Decomposition of Lecithin in Parenteral Fat Emulsions

1956 ◽  
Vol 186 (3) ◽  
pp. 397-402 ◽  
Author(s):  
G. Frederick Lambert ◽  
Jonathan P. Miller ◽  
Douglas V. Frost
Keyword(s):  
Fatty Acids ◽  
Aqueous Solutions ◽  
Aqueous Phase ◽  
Myristic Acid ◽  
Room Temperature ◽  
Clinical Use ◽  
Clear Indication ◽  
Fat Emulsions ◽  
Egg Lecithin ◽  
Hydrolysis Of

Aqueous solutions of alcohol-soluble phosphatide, synthetic lecithin and purified egg lecithin develop hemolytic and other toxic properties over a period of time at ordinary room temperature, or at an increased rate at 40°C. The toxicity of emulsions made with phosphatide as a stabilizer also increases with time. The evidence suggests that hydrolysis of synthetic lecithin proceeds first to give a hemolytic product, presumably lysolecithin. When liberation of both fatty acids from l-alpha-dimyristoyl lecithin was complete and the myristic acid was removed, no toxicity was shown by the aqueous phase, presumably glyceryl phosphorylcholine. Attempts to decrease the hydrolysis of lecithin solutions did not succeed. Although the use of lecithin phosphatide preparations as emulsifiers for intravenous fat may have limitations as to time and temperature of storage, there is no clear indication from these studies that any real hazard is involved from the standpoint of clinical use.

Sign in / Sign up

Export Citation Format

Share Document