A surplus of glycerol production due to several reasons has initiated investigation of several routes of oxidative glycerol upgrading. Among the reaction products are substances such as dihydroxyacetone and several acids from oxidative upgrading of glycerol. Several routes of chemical oxidation and electrochemical oxidation have been published in literature. The ongoing project has focused on t...

Nanosized noble metal catalysts supported on high-surface-area support are of great importance for numerous industrial chemical processes to mediate reaction pathways in heterogeneous catalysis. Control of surface area and surface energy of nanocatalysts is a key to achieving high activity and selectivity for desired products. In the past decade, new synthetic methodologies for noble metal nano...

The electronic tongue uses a sensor array with partially overlapping selectivity to get information on quality parameters such as sample condition, the state of a process, or expected human perception (Winquist et al., 2004). Sensors forming the array should exhibit various selectivity patterns to minimize correlation between sensor responses, which provides more information about the sample (C...

the present study seeks to investigate the scientific products among the three countries of islamic republic of iran, turkey, and greece as they have entered the 3 rd millennium (during the years 2000-2008) upon the data obtained from isi web of knowledge. in the past, these nations had possessed original, rich, and great civilizations; moreover, these countries had had (and still have) borders...

   Graphene oxide nanosheet (GONS) can be a suitable membrane for gas separation with high permeability and selectivity. Separation of N2/CO2 using functionalized GONS was investigated by molecular dynamics simulations. The simulated systems were comprised of two types of GONS with a pore in their center, N2 and CO2 molecules. The selectivity and ...

human parvovirus b19, the causative agent of fifth disease in childhood, is non-enveloped dna virus and resistant to many physicochemical agents. b19 is a potential risk to hemophiliac patients receiving blood products. to determine the prevalence of the corresponding antibody in patients with hemophilia a or b or von will brand’s disease (vwbd), we tested 180 hemophilia patients aged 1-45 year...

Bifunctional catalysis concerns the use of low molecular weight, structurally defined molecules possessing two distinct functional groups to bring about new reactivity and/or selectivity in a reaction of interest. The reactions are typically polar addition reactions of pronucleophiles and electrophiles where, ideally, simple low-cost starting materials are converted into high-value, stereochemi...

Upon condensation of 6-thio-6-deoxy-mannosyl donors 1,2-cis products are obtained with a high degree of stereoselectivity. Subsequent reductive removal of the 6-thio functionality gives 1,2-cis rhamnosides. The 1,2-cis-selectivity can be rationalized with a product forming (3)H(4)-oxocarbenium, which is in equilibrium with a bridged sulfonium intermediate.