Materials Literature
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Magnetic thin films have been obtained by rf sputtering on ${\text{Si}}_{3}{\text{N}}_{4}$ substrates from a ${\text{Fe}}_{78}{\text{B}}_{13}{\text{Si}}_{9}$ target. The samples, with thickness $t$ of 80 and 305 nm, are partially amorphous; crystalline fraction increases on increasing $t$. Magnetic force microscopy an…
In this paper, we study the effect of Ni(II) doping on the structure of L-histidine hydrochloride monohydrate crystals using x-ray diffraction and Raman spectroscopy. X-ray powder diffraction shows no significant change in the unit cell parameters of the doped single crystal, whereas x-ray multiple diffraction using s…
The noise characteristics of randomly networked single-walled carbon nanotubes grown directly by plasma enhanced chemical vapor deposition (PECVD) are studied with field effect transistors (FETs). Due to the geometrical complexity of nanotube networks in the channel area and the large number of tube-tube/tube-metal ju…
Nanotubes (NTs), nanometer-scale hollow cylinders, are emerging as promising drug vehicles offering many advantages over spherical particles.This paper briefly highlights the recent performance of NTs in drug delivery.This discussion is by no means intended to be complete, an attempt is made to provide some illustrati…
Hexagonal silver nanowire (4H-Ag NW) arrays with preferred orientation are fabricated into the holes of porous anodic alumina membranes (AAMs) by direct current electrodeposition. The addition of tartaric acid and low deposition temperature are crucial conditions for the growth of 4H-Ag NWs. The thermal expansion prop…
Abstract Herein we report on CO 2 fixation by insertion into the Zn–N bonds of the two molecular compounds EtZnN( i Pr) 2 and EtZnN( i Bu) 2 . The tetrameric carbamate complexes [EtZn(O 2 CNR 2 )] 4 (R = i Pr and i Bu) were found to be the products of these reactions. The structures of the complexes were established b…
Exploiting the thermodynamic potential functional provided by density functional theory, we determine analytically the free-energy landscape (FEL) in a hard-sphere fluid. The FEL is represented in the three-dimensional coordinate space of the tagged particle. We also analyze the distribution of the free-energy barrier…
We report on a short-wavelength, 'blue' spectral shift of the photoluminescence (PL) spectrum in CdSeTe/ZnS core/shell quantum dots (QDs) caused by bioconjugation with several monoclonal cancer-related antibodies (ABs). Scanning PL spectroscopy was performed on samples dried on solid substrates at various temperatures…
Based on the principle of thermodynamically stable nanophase, we design a strategy for fast and mass preparation of ZnS nanostructures. Under concentrated NaOH environment, where ZnS nanoarchitecture can be thermodynamically stable, ZnS nanoarchitecture was rapidly grown by using equal stoichiometric proportions of Zn…
Density Functional Theory (DFT) calculations have been performed on the TTC-->TTT isomerization reaction of the open forms of the 1',3'-dihydro-8-bromo-6-nitro-1',3',3'-trimethylspiro[2H-1-benzopyran-2,2'-(2H)indole (8-Br-6-nitro-BIPS) system. The calculations were carried out in vacuo and in methylene chloride soluti…
Using a universal density of states (Mintmire and White 1998 Phys. Rev. Lett. 81 2506), we have found an analytic expression for the long-axis linear susceptibility of single-walled carbon nanotubes valid for arbitrary diameter and chirality. The applicability of our general expression has been assessed by comparison…
The use of high-pressure/high-temperature conditions (7.5 GPa and 1100 degrees C; Walker-type multianvil apparatus) led to the synthesis of a new cadmium borate CdB2O4, starting from stoichiometric mixtures of the oxides. The crystal structure was determined on the basis of single crystal X-ray diffraction data, to re…
Here we present an efficient synthesis of functional dendritic polymers carrying internal fluorescence labels for bioconjugation. Specifically, dendritic polymers having pyrene as fluorescence label in the core and N-hydroxysuccinimide (NHS) functional groups at the periphery were synthesized by coupling heterobifunct…
Two alternative Ru 2 (2+/3+) mixed-valence states are formed in the first dinuclear Ru complex with a ligand-bound ambidentate motif. The hysteretic electrochemical response follows a double-square scheme where the structure of the mixed-valence state depends on the previous isovalent state. The Ru (3+) state of the p…
This paper reports the first attempt to control the combustion and the detonation properties of a high explosive through its structure. A porous chromium(III) oxide matrix produced by the combustion of ammonium dichromate was infiltrated by hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX). The structure of the Cr(2)O(3)…
All surface-excitation studies of Au in the past focused on the well-known 2.4 eV surface plasmon polariton in the visible spectral regime. The existence of surface exciton polaritons is believed to be pristine to the spectral regimes, showing strong excitonic absorptions [F. Yang et al., Phys. Rev. Lett. 64, 559 (199…
Abstract There is increasing interest in using ionic liquids (ILs) as solvents for polymerization processes. The use of an inexpensive and readily available IL such as tetrabutylammonium bromide (TBAB) as a solvent for clean synthesis and catalytic processes is becoming widely recognized and accepted. This article rep…
Abstract The unique properties of magnetic nanocrystals have triggered intensive research towards their effective functionalization and application in many technological fields. Although synthesis of magnetic colloids is being thoroughly studied, there is limited knowledge on the synthesis, characterization, and prope…
Here we demonstrate the preparation of highly ordered two-dimensional P 6 mm mesoporous niobium silicates with unprecedented loadings of niobium in the silica framework (up to n Si / n Nb ratio of 6.1) and highly winding morphologies maintaining regularly aligned arrays of nanochannels through a simple adjustment of t…
The anharmonic vibrational frequencies of FHF(-) were computed by the vibrational self-consistent-field, configuration-interaction, and second-order perturbation methods with a multiresolution composite potential energy surface generated by the electronic coupled-cluster method with various basis sets. Anharmonic vibr…