Now showing items 1-10 of 643
Structural and Synthetic Studies of Potential Antitumor Natural Products
(Virginia Tech, 1998-08-13)
Bioassay directed fractionation of the methyl ethyl ketone extract of Chiloscyphus rivularis yielded eight sesquiterpenoids, and detailed spectroscopic interpretation led to the assignment of their structures as ...
Theoretical and experimental studies of energy transfer dynamics in collisions of atomic and molecular species with model organic surfaces
(Virginia Tech, 2009-04-01)
A full understanding of chemical reaction dynamics at the gas/organic-surface interface requires knowledge of energy-transfer processes that happen during the initial gas/surface collision. We have examined the influence ...
Study of the dilute solution properties of various homo- and block co-polymers by variable temperature size exclusion chromatography
(Virginia Polytechnic Institute and State University, 1984)
Synthesis, Properties, and Biology of Advanced H2S-Releasing Materials
(Virginia Tech, 2017-04-25)
Hydrogen sulfide (H2S) is an endogenously produced signaling gas involved in numerous cellular functions. At the appropriate concentration, exogenous administration of this gasotransmitter regulates vasodilation, promotes ...
The interaction of cobalt, amino acids, and cobalt amino acid complexes with sediment surfaces
(Virginia Polytechnic Institute and State University, 1982)
Studies of Bioactive Natural Products and Mechanism-Based Bioassays
(Virginia Tech, 2005-11-16)
An extract of the sponge <i>Rhabdastrella globostellifera</i> was active in an assay measuring stabilization of the binding of DNA with DNA polymerase β. From this extract, four isomalabaricane triterpenoids were ...
A study of aromatic cyclodehydration, I. Ortho effects II. The catalytic effect of metal oxides
(Virginia Polytechnic Institute, 1958)
Investigation of the supercritical fluid extraction and detection of metals in contaminated soils
(Virginia Tech, 1996-08-05)
In this work the Supercritical Fluid Extraction (SFE) and detection of sorbed metals in contaminated soils is explored. Iron containing samples were spiked onto sea sand and extracted with Supercritical Fluid CO₂. On-line ...
Regioselective Synthesis of Cellulose Derivatives
(Virginia Tech, 2012-07-23)
Cellulose is the most abundant polysaccharide on earth and it is relatively a simple homopolymer with three hydroxyl groups, differing only subtly in reactivity. The position of substitution has a powerful influence on ...
Flow and static ¹H, ¹⁹F and ¹⁴N NMR studies in dense fluids
(Virginia Polytechnic Institute and State University, 1988)