Materials Literature
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The ligand field molecular mechanics (LFMM) model has been applied to the oxidized Type 1 copper center. In conjunction with the AMBER94 force field implemented in DommiMOE, the ligand field extension of the molecular operating environment (MOE), LFMM parameters for Cu-N(imidazole), Cu-S(thiolate), Cu-S(thioether), an…
We have built a velocity imaging (VMI) spectrometer optimized for angle-resolved photoionization experiments with synchrotron radiation (SR) in the VUV and soft X-tay range. The spectrometer is equiped with four electrostatic lenses that focus the charged photoionization products onto a position-sensitive multi-hit de…
Abstract Treating MWCNTs with an acidic solution (concentrated H 2 SO 4 /HNO 3 ; 3:1) and subsequently with succinic acid peroxide leads to MWCNTs functionalized with carboxyl groups on their sidewalls (or surfaces). These MWCNT‐COOH were converted to MWCNT‐COCl and further to MWCNT‐NH 2 . The PU was covalently coated…
In this paper we present a comprehensive calculational model for the noise equivalent temperature difference (NETD) of infrared imaging systems based on uncooled bolometer arrays. The NETD model is validated and benchmarked using published performance data of state-of-the-art uncooled infrared bolometer arrays. The ca…
We demonstrate that gadolinium acetate could plug holes of single-wall carbon nanohorns (NHox) and that unplugging was also possible. A quantitative evaluation of the plugging and unplugging using C 60 as a probe showed that about 50% of NHox were hole-plugged with gadolinium acetates and most of them were unplugged w…
The magnetotransport and magnetic property of the ${\mathrm{La}}_{0.67}{\mathrm{Ca}}_{0.33}{\mathrm{MnO}}_{3}$ (LCMO) nanoring network (NRN) have been investigated. This NRN-LCMO shows a giant magnetoconductance at low temperatures with strong memory effect of magnetic field. Its high field magnetoconductance shows li…
RVS has made a significant breakthrough in the development of a 640 x 512 uncooled array with a unit cell size of 17 μm x 17 μm, and performance approaching that of the 25μm arrays. The successful development of this array is the first step in achieving mega-pixel formats. This FPA is designed to ultima…
A modified Hubbard model with linear coupling to both lattice phonons and molecular vibrations is applied to the structural and electronic instabilities of organic charge-transfer (CT) salts such as tetrathiafulvalene-chloranil (TTF-CA). The potential energy surface (PES) of the correlated model is found exactly in fi…
Nb-doped ${\mathrm{SrTiO}}_{3}\phantom{\rule{0.3em}{0ex}}(111)$ samples are annealed in UHV at $850\phantom{\rule{0.2em}{0ex}}\ifmmode^\circ\else\textdegree\fi{}\mathrm{C}$ for $30\phantom{\rule{0.3em}{0ex}}\mathrm{min}$ and investigated using scanning tunneling microscopy (STM), low-energy electron diffraction (LEED)…
Currently available IR transparent materials typically exhibit a trade-off between optical performance and mechanical strength. For instance, sapphire domes are very strong, but lack full transparency throughout the 3-5 micron mid-wave IR band. Yttria is fully transparent from 3-5 microns, but lacks sufficient strengt…
When the emulsion inversion from an abnormal oil-in-water (O/W) system to a normal water-in-oil (W/O) morphology is produced by continuous stirring, the fraction of dispersed phase at which the inversion is triggered (which is known as the critical dispersed phase fraction) and the inversion mechanism are affected by…
Abstract Polylactide (PLA) fibers were dyed with Disperse Blue 79 in supercritical carbon dioxide (SC‐CO 2 ). The effects of dyeing conditions such as the temperature, pressure, and time on the dyeing and mechanical properties were discussed in comparison with those in water. A major advantage of dyeing PLA in SC‐CO 2…
Abstract In this work, integration on the same chip of porous silicon gas sensors along with their driving/readout electronic circuits by using an industrial microelectronic process is demonstrated. To ensure maximum compatibility, the porous silicon formation is performed after the integrated circuit fabrication flow…
We report electrochemical studies, spectroscopy, and electrogenerated chemiluminescence (ECL) of four monodisperse star-shaped truxene core-oligofluorene compounds (T1-T4). All oligomers produced stable radical anions and radical cations and showed blue ECL by ion annihilation with an intensity that could be seen with…
We demonstrate control of ZnO nanorod density for self-organized growth on ZnO buffer layers on Si by varying Zn supersaturation during the initial growth phase, thereby altering the competition between 2D and 1D growth modes. Higher initial supersaturation favours nanorods of diameter <200 nm with micron-sized bas…
Abstract The polypeptide sequence MS14 (MHGKTQATSGTIQS) was used to explore a new method for biomimetic preparation of gold nanoparticles and their aggregates. Self‐congregation of gold nanoparticles into aggregates in MS14 aqueous solution and self‐assembly of gold crystallites onto the designed complex of MS14‐PET f…
The multifunctional acyl-acyl carrier protein (ACP) desaturase from Hedera helix (English ivy) catalyzes the Delta(4) desaturation of 16:0-ACP and the Delta(9) desaturation of 18:0-ACP and further desaturates Delta(9)-16:1 or Delta(9)-18:1 to the corresponding Delta(4,9) dienes. The crystal structure of the enzyme has…
With X-ray and neutron reflectivity, the structure and composition of polyelectrolyte multilayers from poly(allyl amine) (PAH) and poly(styrene sulfonate) (PSS) are studied as function of preparation conditions (salt concentration and solution temperature, T). The onset of a temperature effect occurs at 0.05 M NaCl (D…
Two new polynuclear azido-bridged Co(II) compounds with formulas catena-[Co(mu1,3-N3)(N3)(py)2(H2O)]n (1) and [Co(mu1,3-N3)2(4-acpy)2]n (2) (py=pyridine, 4-acpy=4-acetylpyridine) have been structurally and magnetically characterized. Compound 1 crystallizes in the orthorhombic system Fddd space group and consists of a…
Abstract The FTIR spectroscopic technique was used in the study of ternary polymer–metal complexes containing two polyelectrolytes of opposite charge and metal ions. The structure of the ternary (PAA‐Fe 3+ ‐PVP) complexes was examined by following the changes in their infrared spectra. It was found that the shapes of…