Materials Literature
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The molecular and electronic surface structure of a triarylamine based hole-conductor (HC) molecule evaporated onto rutile TiO2(110) single crystal is investigated by means of synchrotron light based photoelectron spectroscopy and x-ray absorption spectroscopy in combination with calculations based on density function…
Highly organized: Tetrathiafulvalene(TTF)-modified oligonucleotides form stable double strands (see graphic). Exciton coupling reveals a high degree of structural organization in the modified region of a hetero-duplex formed by TTF and perylene diimide-containing strands. Fluorescence quenching in TTF/pyrene-modified…
A manganese atom reacts with dioxygen to form the previously characterized MnO 2 molecule in solid argon under UV-visible light irradiation. Subsequent sample annealing allows the dioxygen molecules to diffuse and to react with MnO 2 to give the (eta (2)-O 2)MnO 2 complex, which is characterized to be a side-on bonded…
Dislocation ‘pile-ups’ occur in crystals when a number of similar dislocations, gliding in a common slip plane, are driven by an applied stress towards an obstacle that they cannot overcome. In contrast to dislocation walls, pile-ups give rise to a long-range stress field, and their properties strongly influence the p…
Cell adhesion peptide regulates various cellular functions like proliferation, attachment, and spreading. The cellular response to laminin peptide (PPFLMLLKGSTR), a motif of laminin-5 alpha3 chain, tethered to type I collagen, crosslinked using microbial transglutaminase (mTGase) was investigated. mTGase is an enzyme…
Transparent crystallized glasses consisting of nonlinear optical Ba(2)TiSi(2)O(8) nanocrystals are prepared in Eu(2)O(3)-, Nd(2)O(3)-, and Er(2)O(3)-doped 40BaO-20TiO(2)-40SiO(2) glasses by a conventional heat treatment method in order to clarify the optical properties of rare-earth (RE) ions in nanocrystals. The elec…
The field-induced multiferroic transition in ${\text{TbMnO}}_{3}$ has been studied by neutron scattering. Apart from strong hysteresis, the magnetic transition associated with the flop of electronic polarization exhibits a memory effect: after a field sweep, ${\text{TbMnO}}_{3}$ does not exhibit the same phase as that…
Abstract The main problems of linen textiles are roughness, stiffness, and wrinkling tendency. To solve these problems, different finishing processes are necessary. The aim of this study is to investigate the effects of different finishing processes such as enzymatic treatment with cellulases, softening process with m…
The magnetic correlations in the charge and orbital ordered manganite ${\text{La}}_{1/2}{\text{Sr}}_{3/2}{\text{MnO}}_{4}$ have been studied by elastic and inelastic neutron scattering techniques. Out of the well-defined charge exchange (CE)-type magnetic structure with the corresponding magnons, a competition between…
We studied photoluminescence (PL) of colloidal CdSe quantum dots (QDs) synthesized by a single-step method using cadmium oxide (CdO) and tri- n -octylphosphine selenide (TOPSe) as the Cd and Se sources, respectively, and tri- n -octylphosphine (TOP) as the reaction medium and subsequently dispersed in hexane. The QDs…
The star-shaped amphiphilic block copolymer (DPEA-PCL-PNIPAAms) with different PCL block lengths was prepared through ring opening polymerization of epsilon-caprolactone (CL) initiated by hydroxyl end-capped dendritic poly(ether-amide) (DPEA-OH), and then coupling with carboxyl end-capped linear poly(N-isopropylacryla…
Abstract Poly(oxyethylene‐H‐phosphonate)s (POE‐H‐Ps), with different poly(oxyethylene) segment lengths, were synthesized via conventional two‐stage polycondensation reaction of dimethyl‐H‐phosphonate and poly(ethylene glycols) (PEGs), with nominal molecular weights of 400, 600, and 1000 Da. The changes in the composit…
The interfacial film of physically adsorbed ionic amphiphilic molecules on submicron particles dispersed in water was studied by a combination of surface tension measurements, laser light scattering (LLS) and high-shear experiments in a microchannel. General features in the structure and morphology of the molecular fi…
The Heusler compound Co 2 FeAl is reported to occur in various structures ranging from the completely ordered L 2 1 to the completely disordered A 2 structure type. In this work, we use spin echo nuclear magnetic resonance (NMR) to probe the local structure of Co 2 FeAl bulk samples. The study of Co 2 FeAl bulk sample…
A novel polarization converter using reflective metallic gratings and a polarization beam splitter is introduced for LCD backlight illumination. These two optical elements form a polarization rotation resonator. Broadband and high optical efficiency of polarization conversion in the visible region is achieved through…
Abstract Advances in protein and peptide technologies not only enable the study of basic folding and function of natural structures but also the design of novel scaffolds with the ability to form assemblies of varied shapes and sizes. Tremendous progress has been made in our understanding of α‐helices in nature especi…
Computer simulations have been carried out to test the recently proposed model for the nanodomain structure of relaxor ferroelectrics such as lead zinc niobate (PZN). In this recent model it was supposed that the polar nanodomains are three-dimensional, that the observed diffuse rods of scattering originate from the b…
A new simple method combining hot-wire CVD and pulsed liquid injection of metal-organic precursor solutions was developed for production of various chalcogenide films. The grown thin Ge2Sb2Te5 films exhibit electrically and optically induced reversible phase change behavior, showing the potential of deposition method…
Elastic salmon collagen (SC) vascular grafts were prepared by incubating a mixture of acidic SC solution and a fibrillogenesis-inducing buffer containing a crosslinking agent [water-soluble carbodiimide (WSC)] in a tubular mold at 4 degrees C for 24 h and then at 60 degrees C for 5 min. Subsequently, re-crosslinking i…
One seed for two: Microspheres with patterned surfaces were obtained by modifying the surface of microspheres of a self-assembled colloidal crystal and redispersion of the colloidal crystal into individual particles. With these surface-patterned spheres as seeds, two types of nonspherical particles were fabricated by…