Materials Literature
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We have theoretically designed efficient photomagnetic diradicals using both substituted and unsubstituted cyclophanediene (CPD) and dihydropyrenes (DHP) as spacers. Nitronyl nitroxide (NN), oxoverdazyl (o-VER), and tetrathiafulvalene (TTF) are chosen as monoradical centers. Molecular geometries have been optimized by…
The design and synthesis of Raman reporter molecules comprising olefin or alkyne moieties with strong and characteristic vibrational Raman bands is presented. Chemisorption onto the surface of colloidal Au/Ag shells yields a self-assembled monolayer. Hydrophilic stabilization of such SERS labels can be achieved by sho…
GaMg bimetallic alloy nanoparticles for plasmonics and hydrogen storage are demonstrated. The localized surface plasmon resonance of the GaMg alloy nanoparticles is widely tunable from the near-UV through the visible and to the near-IR, it is almost unaffected by air-exposure oxidation, and it is thermally stable.
We report a system consisting of a mixed Langmuir monolayer, made of water-insoluble, spreadable, fluid-like polymers polydimethylsiloxane (PDMS) and polymethylmethacrylate (PMMA) with a minority P(DMS-b-MMA) copolymer. We have performed both Langmuir trough pressure/area isotherm measurements and Brewster angle micro…
We have investigated the structural change of an immiscible blend consisting of two polymers with equal viscosity subjected to a step electric field under shear flow. During the process, three-dimensional images were successfully acquired with a confocal scanning laser microscope, and at the same time, the transient s…
OBJECTIVE: To evaluate the force-deflection behavior of six beta-titanium wires using a three-point bending test. MATERIALS AND METHODS: The wires timolium (TIM), titanium molybdenum (ORG), beta titanium (BETA), resolve (RES), titanium molybdenum alloy (TMA), and TMA low friction (TMAL) were adapted into two stainless…
The surface morphology of bucky papers (BPs) made from single-walled carbon nanotubes (CNTs) is modified by plasma treatment resulting in the formation of vertical microstructures on the surface. The shapes of these structures are either pillarlike or conelike depending on whether the gas used during plasma treatment…
Water adsorption on (001) BaTiO3 single crystal surface under varying relative humidity conditions was studied by ab initio calculations and scanning probe microscopy utilizing different operation modes. At 95% relative humidity water droplets nucleated only on c domains, preferential adsorption location for water dip…
The controlled growth of cyano-bridged coordination polymers was developed by using layered double hydroxides (LDH) as bidimensional host structures. A series of nanocomposites [B 0.66 Al 0.33 (OH) 2 ] 0.33+ /[MFe(CN) 6 ] − (B = Mg, Ni; M = Ni, Co) were obtained by step-by-step coordination of hexacyanoferrate buildin…
Acceptor‐doped barium cerate perovskite oxides act as high temperature proton conducting ceramics, which can be utilized in solid oxide fuel cells, hydrogen separation membranes, and other electrochemical devices. One of the major issues in their fabrication is the formation of second phases during sintering of these…
We demonstrate that the mechanism for nonradiative energy transfer, a critical aspect in many optical systems, can switch from a longer-range dipole−dipole mechanism to a short-range exchange mechanism through energy migration between donors. This transition significantly increases energy transfer rates and is analyze…
Abstract A series of 1D polymeric Fe II spin crossover (SCO) compounds of type trans ‐[Fe II (NCX) 2 (L)] · Solvent has been synthesised {L = DPPyT = 1‐[4,6‐bis(dipyridin‐2‐ylamino)‐1,3,5‐triazin‐2‐yl]pyridin‐4(1 H )‐one for 1 – 4 ; NCX = NCS – for 1 and 2 , NCSe – for 3 and 4 ; Solvent = 2.5CH 2 Cl 2 for 1 , 2CHCl 3…
When two types of side chains (A,B) are densely grafted to a (stiff) backbone and the resulting bottlebrush polymer is in a solution under poor solvent conditions, an incompatibility between A and B leads to microphase separation in the resulting cylindrical brush. The possible types of ordering are reminiscent of the…
Reproducible and high quality N-doped ZnO (ZnO:N) films were achieved by a hydrothermal treatment method. The ZnO:N films exhibited p-type characteristics by means of the Hall-effect and the photoluminescence measurements. At room temperature, the electrical properties of ZnO:N film showed a hole concentration of 1×10…
We studied the optical properties of core-shell CdSe/CdS nanorods with various lengths and core diameters that were fabricated by wet chemical synthesis using the seeded growth method. We investigated the optical emission from thin films consisting of dense nanorod arrays, where we observed amplified spontaneous emiss…
Similar to the water wave on a pond caused by dropping a pebble, the formation of ripples is shown in a single layer graphene (SLG) when it is stroked by a C60 molecule, no matter whether the graphene is plane or corrugated. The controllable ripple in SLG is investigated by molecular dynamics simulations. Noticeable d…
Abstract A multifunctional nanoscale platform that is self‐assembled from a hydrophobic poly( dl ‐lactide‐coglycolide)(PLGA) core and a hydrophilic paramagnetic‐folate‐coated PEGylated lipid shell (PFPL; PEG=polyethylene glycol) is designed for simultaneous magnetic resonance imaging (MRI) and targeted therapeutics. T…
This study reports the interaction of acetaldehyde with well-ordered CeO X (111) thin film surfaces. The fully oxidized CeO 2 (111) surface shows a weak interaction with acetaldehyde with the sole desorption product (TPD) being the parent molecule at 210 K. The chemisorbed molecule binds to the surface as the η 1 -ace…
This letter reports on an alloy design of Mn50Ni37In10Co3 based on the principle of Mn-Mn ferromagnetic coupling via Co doping. The alloy is shown to exhibit a metamagnetic martensitic transformation and a high saturation magnetization of 118 emu/g in its austenitic state. The transformation generates a large magnetiz…
Acetic acid adsorption on the rutile TiO 2 (110) and (011)-2 × 1 surfaces is compared by temperature-programmed desorption, ultraviolet photoemission spectroscopy, and scanning tunneling microscopy. In contrast to the well-established bidentate adsorption of carboxylic acids on the (110) surface, we find a monodentate…