Materials Literature
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Understanding relationships between sequence, structure, and evolution is important for functional characterization of proteins. Here, we define a novel DOM-fold as a consensus structure of the domains in DmpA (L-aminopeptidase D-Ala-esterase/amidase), OAT (ornithine acetyltransferase), and MocoBD (molybdenum cofactor…
Abstract The deintercalation of carbonate ions from a hydrotalcite-like compound (MgAl-LDH) was investigated using salt-HCl mixed solutions with sodium salts containing various monovalent anion species. The deintercalation was influenced by the anion species, and the carbonate ions were deintercalated most easily for…
Pseudomonas aeruginosa produces the biosurfactant rhamnolipid, which has several potential biotechnological applications. The synthesis of this surfactant is catalyzed by rhamnosyltransferase 1, composed of the proteins RhlA and RhlB. Here we report that RhlA plays a role not only in surfactant synthesis, but also in…
The synthesis and X-ray structure of the low-coordinate, high-spin Fe(I) compound LFe(HCCPh) (L = HC(C[tBu]N[2,6-diisopropylphenyl])2]-), 1, are reported. Low-temperature Mössbauer and electron paramagnetic resonance (EPR) spectroscopies reveal that the electronic ground state is a Kramers doublet with uniaxial magnet…
Deproteinized natural rubber latex (DPNR-latex) was treated with lipase and phosphatase in order to analyze the structure of the chain-end group (alpha-terminal). The enzymatic treatment decreased the content of long-chain fatty acid ester groups in DPNR from about 6 to 2 mol per rubber molecule. The molecular weight…
Using density functional theory we demonstrate that superconductivity in C6Ca is due to a phonon-mediated mechanism with electron-phonon coupling 0.83 and phonon-frequency logarithmic-average 24.7 meV. The calculated isotope exponents are 0.24 for Ca and 0.26 for C. Superconductivity is mostly due C vibrations perpend…
Introduction bond-band-barrier (BOLS) correlation for the effect of electronic process of oxidation and the bond order-length-strengtrh (BOLS) correlation for the behaviour of nanostructures.
This paper reports the structure-dependent molecular orientation behavior of sericin, an adhesive silk protein secreted by silkworm, Bombyx mori. Although application of sericin as a biomaterial is anticipated because of its unique characteristics, sericin's physicochemical properties remain unclear, mainly because of…
[reaction: see text] Photochromic dithienylethene moieties were covalently attached to fluorescent 4,4-difluoro-8-(4'-iodophenyl)-1,3,5,7-tetramethyl-4-bora-3a,4a-diaza-s-indacene (iodo-BODIPY) via a phenylacetylene linker. UV light induced isomerization of the photochrome results in significant decrease in fluorescen…
Magnetic properties of ${\mathrm{M}}_{c}{\mathrm{Ta}}_{2}{\mathrm{S}}_{2}\mathrm{C}$ $(\mathrm{M}=\mathrm{Fe},\mathrm{Co},\mathrm{Ni},\mathrm{Cu})$ have been studied using superconducting quantum interference device dc and ac magnetic susceptibility. In these systems magnetic ${\mathrm{M}}^{2+}$ ions are intercalated…
The surface tension of a model, water-based, flexographic printing ink was measured at a range of surfactant concentrations along with the equilibrium contact angle formed with polymer substrates. The surface excess of surfactant at each concentration was calculated using the Gibbs adsorption isotherm and assumed equa…
Ab initio calculations reveal that ultrashort-period epitaxial KNbO3∕(KTaO3)m superlattice exhibits typical ferroelectricity when m=1 or 2; while it becomes paraelectric when m⩾3. We observe considerable and tantamount dipole moment in each cell, which can be attributed to the continuity of dipole moment at the interf…
Abstract Mannose‐functionalized and ethoxyethanol‐functionalized poly(amido)amine dendrimers bound multiple vanadate‐substituted polyoxotungstate Wells–Dawson‐type polyoxometalates (POMs). Dendrimers incorporating 10–30 POMs were characterized with NMR, transmission electron microscopy, and matrix‐assisted laser desor…
Patterning and fusion of CuO nanorods with a focused laser beam, Yu, Ting, Sow, Chorng-Haur, Gantimahapatruni, Aditya, Cheong, Fook-Chiong, Zhu, Yanwu, Chin, Kok-Chung, Xu, Xiaojing, Lim, Chwee-Teck, Shen, Zexiang, Thong, John Thiam-Leong, Thye-Shen Wee, Andrew
A phosphoserine-containing peptide was identified from tryptic digests from Sulfolobus solfataricus P1 by liquid chromatography-tandem mass spectrometry. Its amino acid sequence closely matched that bracketing Ser-309 in the predicted protein product of open reading frame sso0207, a putative phosphohexomutase, in the…
The metamorphic evolution of metapelites from the eastern part of the Monte Rosa nappe and the Camughera–Moncucco unit, both situated in the upper Penninic units SW of the Simplon line, were investigated using microstructural relationships and equilibrium phase diagrams. The units under consideration experienced pre-A…
We investigate the electric field induced resistive switching effect and magnetic field induced fraction enlargement on a polycrystalline sample of a colossal magnetoresistive compound displaying intrinsic phase coexistence. Our data show that the electric effect (presumably related to the presence of inhomogeinities)…
Magnetostrictive transducers are receiving growing attention as an alternative to piezoelectric transducers in generating guided torsional waves in cylindrical waveguides. A recent study shows that torsional wave generation is possible if a set of thin magnetostrictive nickel strips are bonded to the surface of a cyli…
There has recently been a surge of interest in the properties and applications of monolayer protected clusters (MPCs). MPCs are metal nanoparticles that have unique optical, chemical, and electrochemical properties resulting from their small size. Because the size defines their properties, MPC particle size fractionat…
[structure: see text] Dendrimers are attractive scaffolds for catalysis, since catalytic sites can be isolated and the catalysts are recoverable and reusable. Herein, we show that conformationally constrained molecules have better access to dendritic cores compared to the more flexible counterparts. The results report…