نتایج جستجو برای: dichroism
تعداد نتایج: 9354 فیلتر نتایج به سال:
crystalline arrays of proteinaceous subunits forming surface layers (s-layers) are now recognized as one of the most common outermost cell envelope components of prokaryotic organisms. the surface layer protein of lactobacillus acidophilus atcc4356 is composed of a single species of protein of apparent molecular weight of 43-46 kda. considering the lactobacillus acidophilus atcc4356 having the ...
Quantitative analysis of shadow X-ray Magnetic Circular Dichroism Photo-Emission Electron Microscopy
Three megastigmane derivatives, (6R, 7Z)-9,10-dihydroxy-4,7-megastigmadien-3-one, (6S,7E)-6,9,10trihydroxy-4,7-megastigmadien-3-one 6-O-β-D-glucopyranoside and (5R, 6S, 7E)-6, 9, 10-trihydroxy-7megastigmane-3-one 9-O-β-D-glucopyranoside, along with fourteen known compounds, were isolated from an ethanolic extract of Cissus quadrangularis Linn. The structures of the megastigmane derivatives were...
Conventional circular dichroism (cCD) spectroscopy is a valuable tool for secondary structure analyses of proteins. In recent years, it has been possible to use synchrotrons as light sources for CD, with the technique being known as Synchrotron Radiation Circular Dichroism (SRCD). In this study, the spectra of two proteins, the primarily helical myoglobin and the primarily beta-sheet concanaval...
human serum albumin (hsa) is an abundant, multifunctional and nonglycosylated negatively charged plasma protein. hsa ascribed ligand-binding and transport properties, antioxidant functions and enzymatic activities. in the present study, the interaction and side effects of a new designed anti-cancer compound (1,10-phenanthroline butyl dithiocarbamato palladium(ii) nitrate) on hsa have been inves...
Through an extensive set of SQUID magnetic measurements, X-ray absorption spectroscopy, and X-ray magnetic circular dichroism, we have determined the nature of the metastable photomagnetic phase in the cyano-bridged 3D network Cs(2)Cu(7)[Mo(CN)(8)](4). The photomagnetic effect is induced by the photoconversion of Mo(IV) ions in low spin (LS) configuration (S = 0) into Mo(IV) ions in high spin (...
X-ray absorption spectroscopy studies of the magnetic-insulating ground state of Sr2IrO4 at ambient pressure show a clear deviation from a strong spin-orbit (SO) limit J(eff)=1/2 state, a result of local exchange interactions and a nonzero tetragonal crystal field mixing SO split J(eff)=1/2, 3/2 states. X-ray magnetic circular dichroism measurements in a diamond anvil cell show a magnetic trans...
High Pressure Study of Gd5(SixGe1−x)4 Giant Magnetocaloric Materials Using X-ray Magnetic Circular Dichroism
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