Materials Literature
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An unconventional and straightforward route to fabricate morphology-controlled 2D ordered carbonaceous nanoarrays is presented. This route is based on the electron irradiation of a polystyrene colloidal monolayer followed by thermal decomposition. This strategy has the advantages of low-cost fabrication and easy manip…
The photoresponsive J-aggregation behaviors of a novel azobenzene-substituted zinc phthalocyanine (azo-ZnPc dyad) were studied by UV/vis, fluorescence, and (1)H NMR spectroscopy. Upon illumination with 365 nm UV light, the trans-cis isomerization of azobenzene can efficiently reduce the steric hindrance around the per…
The extracellular cell matrix (ECM) surrounds cells and plays important roles in many aspects of cellular fate, including cell migration, stem cell differentiation, and cancer progression. So far, there is no fluorescent dye to directly visualize the ECM network. Here we present a positively charged fluorescent core-s…
Difluoroboron dibenzoylmethane-polylactide, BF(2)dbmPLA, a biocompatible polymer-luminophore conjugate was fabricated as nanoparticles. Spherical particles <100 nm in size were generated via nanoprecipitation. Intense blue fluorescence, two-photon absorption, and long-lived room temperature phosphorescence (RTP) are r…
We describe a new synthetic strategy to produce multifunctionalized carbon nanotubes using a combination of two different addition reactions, the 1,3-dipolar cycloaddition of azomethine ylides and the addition of diazonium salts, both via a simple and fast microwave-induced method. The presence of multifunctionality o…
We derive expressions for shock formation based on the local curvature of the flow characteristics during dynamic compression. Given a specific ramp adiabat, calculated for instance from the equation of state for a substance, the ideal nonlinear shape for an applied ramp loading history can be determined. We discuss t…
Spontaneous polarization (P s ), rotational viscosity (η) and response time (τ) have been determined as a function of temperature at different electric fields for an antiferroelectric liquid crystal [4,4-(1-methyloctyloxycarbonyl)phenyl]-4′-[3-(butanoiloxy)prop-1-oxy]biphenyl carboxylate (MOPB(H)PBC). Spontaneous pola…
Fabrication of operable surface-stabilized ferroelectric liquid crystals (SSFLC) is often hampered by the occurance of zigzag defects. This defect formation can, to some extent, be controlled or eliminated in SSFLCs in which the rubbing directions are set parallel. In this study, we try to fabricate a defect-free SSFL…
Polymer-stabilized ferroelectric liquid crystals (PSFLCs), in which a photocurable mesogenic monomer is doped into a ferroelectric liquid crystal and a UV photocure is carried out in the SmC* phase under the application of a bipolar AC electric field, show the monostable V-shaped electrooptical characteristics. In thi…
Abstract Non‐substituted or mono‐substituted 11‐cyano or 11‐thiocyanato undecanoic acid phenylamide derivatives were synthesized and characterized with their FT‐IR and 1 H‐NMR spectra. Thereafter, their corrosion prevention efficiencies were investigated. All compounds were tested with steel coupons in acidic medium b…
This paper deals with a simple and green method to synthesize N -methyl aniline under mild condition. A series of mixed metal salt (Zn and Cu salts) modified kaolin catalysts used in the above-mentioned reaction were synthesized and characterized by a Fourier transform infrared spectrometer (FTIR), X-ray diffraction (…
Effect of in situ annealed SnO2 buffer layer on structural and electrical properties of (0 0 1) SnO2/TiO2 heterostructures, Okude, Masaki, Ueno, Kazunori, Itoh, Shun, Kikuchi, Masae, Ohtomo, Akira, Kawasaki, Masashi
Transition properties of a homologous series of novel S-shaped oligomers on varying the spacer length, core structure and linking group were investigated. All the S-shaped oligomers showed a nematic (N) phase on cooling. Formation of the N phase is interpreted in terms of the length to diameter (L/D) ratio, indicating…
Endohedral N@${\text{C}}_{60}$ exhibits an extremely long electron spin relaxation time and offers a great potential in storing and processing quantum information. Here, we present a microscopic theory of electron spin relaxation in N@${\text{C}}_{60}$. The theory combines (1) the spin-orbit interaction of $\text{N}\t…
A density functional study on transition-metal-coated single-walled carbon nanotubes shows that there are both magnetic and nonmagnetic materials, depending on the nature of the transition metals and their adsorption sites. Adsorption of transition metal atoms to a nanotube is energetically favorable. It is found that…
Preparation and characterization of a new series of all-organic ferroelectric liquid crystalline (LC) materials, 4-alkoxyphenyl trans-4-[5-(4-alkoxyphenyl)-2,5-dimethylpyrrolidine-1-oxyl-2-yl] benzoates (2), which are the structural isomers of the previously reported trans-2-alkoxyphenyl-5-[4-(4-alkoxybenzenecarbonylo…
Experimental solubilities are reported for terephthalic acid (TA) in binary mixtures of N -methyl pyrrolidone (1) + water (2) and N, N -dimethyl acetamide (1) + water (2) in the temperature range of (303.2 to 363.2) K. The mole fraction of water in the N -methyl pyrrolidone + water solvent mixtures x 2 ranges from 0 t…
The synthesis, structure, and optical and electrochemical properties of thiophene-containing hybrid calixphyrins are reported. The 5,10-porphodimethene type 14pi- and 16pi-S,N2,X-hybrid calixphyrins (X = NH, O, S) were prepared by acid-promoted dehydrative condensation between a thiatripyrrane and the corresponding 2,…
The homologous series of mesogenic (S)-4″[n-(perfluoroalkanoyloxy)hexyl-1-oxy]-4-(1-metylheptyloxy-carbonyl)terphenyl compounds exhibiting low temperature, wide range, near orthoconic antiferroelectric phase has been synthesized [1 Kula, P., Dabrowski, R., Kenig, K. and Chyczewska, D. 2006. New antiferroelectric compo…
The promising materials for applications are Antiferroelectric Liquid Crystals. Two dielectric modes were detected in AFLCs, as far [1 Lagerwall, S. T. 1999. Ferroelectric and Antiferroelectric Liquid Crystals, Wiley-VCH. [Crossref] , [Google Scholar], 2 Haase, W. 2003. St. Wróbel, Relaxation Phenomena, Springer-Verla…