A new and simple model enabling a chemical species to be brought to a preselected site in single strand DNA is reported. Two oligonucleotides containing a propanediol linkage were hybridized to their complementary sequences with an extra-base opposite the propanediol derivative. Absorption studies results shown that the addition of a bisacridine derivative strongly increased the stabilities of ...

Molecular dynamics (MD) simulations have been used to investigate the interactions of a variety of hydroxylated cryosolvents (glycerol, propylene glycol and ethylene glycol), methanol and dimethyl sulfoxide (DMSO) in aqueous solution with a 1,2-dipalmitoyl-sn-glycero-3-phosphatidylcholine (DPPC) bilayer in its fluid phase at 323K. Each cryosolvent induced lateral expansion of the membrane leadi...

Strain EY-1 was isolated from a microbial consortium growing on a random polymer of ethylene oxide and propylene oxide. Strain EY-1 grew on polyethylene glycol and polypropylene glycol and identified as Sphingopyxis macrogoltabida. Here, we report the complete genome sequence of Sphingopyxis macrogoltabida EY-1. The genome of strain EY-1 is comprised of a 4.76-Mb circular chromosome, and five p...

Reaction conditions, temperature and pressure ranges, for various chemical recycling proc‐ esses of polyesters are sketched in Figure 1. So far, various recycling processes for polyesters have been investigated and developed, as reviewed by Paszun and Spychaj [1]: alcoholysis with methanol or ethanol, glycolysis with ethylene glycol or propylene glycol, alkali hydrolysis with sodium hydroxide, ...

Currently short-chain polyols such as ethanediol, propanediol, and butanediol are produced either from the petroleum feedstock or from the starch-based food crop feedstock. In this study, a combinational process of enzymatic hydrolysis with catalytic hydrogenolysis for short-chain polyols production using corn stover as feedstock was developed. The enzymatic hydrolysis of the pretreated corn st...

Article history: Received 26 December 2010 Received in revised form 31 January 2011 Accepted 2 February 2011 Available online 5 March 2011

Key words: aircraft de-icing fluid (ADF), phytoremediation, tolyltriazole, propylene glycol, ethylene glycol Aircraft de-icer fluids (ADFs) and antifreeze solutions are mainly formulations of either propylene or ethylene glycol and additives such as benzotriazole methyl substitution isomers (tolyltriazoles), and surfac-tants. Although the formulations are proprietary, in general the glycols are...

Metoprolol tartrate USP is a white, practically odorless, crystalline powder with a molecular weight of 684.82. It is very soluble in water; freely soluble in methylene chloride, in chloroform, and in alcohol; slightly soluble in acetone; and insoluble in ether. Inactive Ingredients: Tablets contain cellulose compounds, colloidal silicon dioxide, D&C Red No. 30 aluminum lake (50-mg tablets), FD...

We were interested to read the article by Manini et al. (1), which confirmed previous observations that a severe ethylene glycol poisoning may lead to falsely elevated lactate levels (2). High lactate levels were indeed measured by enzymatic spectrophotometry (Integra analyzer) but excluded by a specific GC analysis. A linear correlation was nicely demonstrated between the serially determined b...

Abstract: In this work, several metal oxides and zinc salts were used to catalyze propylene carbonate (PC) synthesis from urea and propylene glycol (PG). According to the results of catalytic test and characterization, the catalytic pattern of ZnO was different from that of other metal oxides such as CaO, MgO and La2O3, but similar to that of zinc salts. In fact, the leaching of Zn species took...