Materials Literature
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Abstract Efforts of fabricating single crystalline ZnO thin films by the mist chemical vapor deposition (CVD) method have been reported in this paper. In our previous research, by using the water solution of zinc acetate as the Zn source, we have not succeeded in obtaining ZnO thin films of single crystalline structur…
Abstract Poly(acryloyl chloride) (PACl) was employed to enhance the surface of multi‐walled carbon nanotubes (MWCNTs). MWCNTs were first acid treated to generate hydroxyl groups on the surface, which was reacted with PACl to obtain an encapsulation. The numerous acryloyl chloride groups on the out layer were esterifie…
BACKGROUND: L-Dopa decarboxylase (DDC) is a pyridoxal 5'-phosphate-dependent enzyme that was found to be involved in many malignancies. The aim of this study was to investigate the mRNA expression levels of DDC in prostate tissues and to evaluate its clinical utility in prostate cancer (CaP). METHODS: Total RNA was is…
Anhydrous proton conducting materials have attracted a burst of interest in recent years because of their potential application in fuel cells. However, a detailed microscopic picture of proton transport mechanisms has not been fully established. To gain a deeper understanding of such materials, the superprotonic phase…
A combination of gas and probe molecule adsorption from aqueous solution have been applied to determine the adsorptive and structural properties of porous silicon (pSi) particles as a function of thermal oxidation in the range 473−1073 K. Gaseous nitrogen adsorption has shown a decrease in the BET specific surface are…
Positive discrimination: Palladium-catalyzed [3+2] annulation of meso-bromoporphyrin with norbornene derivatives efficiently provides novel chiral meso,β-fused porphyrins with a rigid structure (as shown). A chiral benzoazanorbornene-fused zinc porphyrin assembles selectively to form the slipped cofacial dimer in a he…
We investigated the effect of counterion valence on the structure and swelling behavior of polyelectrolyte brushes using a nonlocal density functional theory that accounts for the excluded-volume effects of all ionic species and intrachain and electrostatic correlations. It was shown that charge correlation in the pre…
Nanostructured ultrathin films of pendant carbazole-modified polyelectrolytes were fabricated using the layer-by-layer deposition technique in order to correlate the importance of highly ordered structures and well-defined layer composition in electrochemical cross-linking and nanopatterning. Both UV−vis and surface p…
Polymethacrylate copolymers, which have hexamethylene spacer groups terminated with 4-oxycinnamic acid, 4-oxybenzoic acid, and 4-(4′-oxyphenyl)benzoic acid in the side chain, were synthesized, and the photoinduced cooperative molecular reorientation of thin films was demonstrated using linearly polarized ultraviolet (…
Candida antarctica Lipase B (CALB) was found to catalyze condensation reactions of diethyl carbonate (DEC), diester, and diol to form aliphatic poly(carbonate- co -esters). Poly(butylene carbonate- co -butylene succinate), poly(BC- co -BS), and poly(hexamethylene carbonate- co -hexamethylene adipate), poly(HC- co -HA)…
This work offers a new vision of the nanoparticle−polymer interface in inorganic nanoparticle filled thermoplastic nanocomposites in terms of macromolecular structure, conformations, and interactions. In particular, the molecular structure and interfacial conformation of PMMA in silica/PMMA nanocomposites obtained by…
Using state of the art spin-polarized density functional theory it is found that a chemically inert (BN)(36) cluster can be activated by incorporating magnetic nanoparticles inside it. To illustrate this aspect we have calculated the geometries and electronic structure of Fe(BN)(36) and Fe(4)(BN)(36) clusters, which s…
In previous papers, we showed that (i) neutral solutions of hydrogen peroxide can be safely obtained by the direct reaction of H 2 and O 2 gas mixtures in the presence of Pd-loaded sulfonic acid resins and (ii) low molecular weight olefins can be successfully epoxidized using aqueous solutions of H 2 O 2 in the presen…
Boxing clever: A cyclic tetramer of the dialkynylene-bridged zinc bisporphyrin rotamer [ZnP()2] shows a unique solvatochromic response to nonpolar solvents with equally low dielectric constants (2.23–2.57). This solvatochromism originates from the π conjugation of [ZnP ()2]. The tetramer [{ZnP()2}4] can discriminat…
We demonstrate a method to fabricate high-quality patterned micelle arrays using poly(styrene-b-4-vinylpyridine) (PS-b-P4VP) block copolymer. Long-range order of the PS-b-P4VP micelle in hexagonal arrays was induced by topographic grating patterns during solvent annealing. The size and row spacing of block copolymer m…
A semicrystalline cross-linked polymer exhibiting two-way conversion between totally different mechanical properties was obtained. Furyl-telechelic poly(1,4-butylene succinate- co -1,3-propylene succinate) prepolymer (PBPSF 2 ) was prepared and polymerized with tris-maleimide linker (M 3 ) by the Diels−Alder (DA) reac…
The synthesis, crystal structure, and magnetic properties of three new manganese(III) clusters are reported, [Mn 3(mu 3-O)(phpzH) 3(MeOH) 3(OAc)] (1), [Mn 3(mu 3-O)(phpzMe) 3(MeOH) 3(OAc)].1.5MeOH (2), and [Mn 3(mu 3-O)(phpzH) 3(MeOH) 4(N 3)].MeOH (3) (H 2phpzH = 3(5)-(2-hydroxyphenyl)-pyrazole and H 2phpzMe = 3(5)-(2…
A method was developed for the entrapment of water-insoluble hydrophobic polymers in a metallic matrix, thus generalizing further the routes for obtaining the novel organics@metal composite materials. The reaction took place in an organic phase using the reduction of metal ions by DMF in the presence of water. The red…
Bismuth telluride is the state-of-the-art thermoelectric (TE) material for cooling applications with a figure of merit of ∼1 at 300 K. There is a need for the development of TE materials based on the concept of thick films for miniaturized devices due to mechanical and manufacturing constraints for the thermoelement d…
Single-particle fluorescence spectroscopy was used to investigate defect-mediated photoluminescence (PL) dynamics of undoped and Eu3+-doped TiO2 nanoparticles, and revealed that free excitons in the photoirradiated TiO2 host can excite both interior and surface Eu3+ ions, while trapped excitons at the surface only exc…