Materials Literature
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A list of diatom taxa from inland waters of the northwestern United States is presented as a product of the author's bioassessment work over the last 40 years. The list is limited to taxa that have been identified from slides that are deposited in the Montana Diatom Collection. The list includes 1,348 species and infr…
Automatized microelectrochemical investigations are achieved using a scanning droplet cell. The area reproducibility for a 100 mum oxide spot is found to be better than 1%, a value typically difficult to reach even in macroscopic samples. A systematic change in color appearance is seen for oxide films with a thickness…
To study transmetalation effects of the gadolinium-based contrast agent Magnevist (Gd-DTPA), the first analytical method for the simultaneous determination of Gd-DTPA and its transmetalation products in complex clinical samples was developed. The high separation efficiency of capillary electrophoresis (CE) was employe…
This paper aims to review the advances achieved in the field of nonlinear optics in relation to phthalocyanines and other related compounds. The main focus is on electronic nonlinear processes, such as second- and third-harmonic generation, and mostly on the work performed by Portuguese and Spanish research groups. Se…
Acid-treated and pristine chemical vapor deposition grown multiwalled carbon nanotube (MWNT) and poly(bisphenol A carbonate) (PC) composites were prepared through a simple solution blending with varied nanotube weight fractions. The electrical conductivities of the composites can be described by the scaling law based…
Abstract The ligand 2,6‐bis(1 H ‐pyrazol‐1‐yl)‐4‐(thiocyanatomethyl)pyridine (L) has been prepared from the hydroxymethyl precursor by OH/Br exchange and subsequent thiocyanate substitution. Two polymorphs of the unsolvated iron(II) complex [Fe(L) 2 ](BF 4 ) 2 crystallize at room temperature from the same solution (Me…
BACKGROUND: 2-Methacryloyloxyethyl phosphorylcholine (MPC) polymer is a suitable vehicle for paclitaxel (PTX) delivery. A new targeted therapy has been developed by conjugating epidermal growth factor (EGF) to MPC polymer and its growth inhibitory and antitumor effects on cancer cells overexpressing EGF receptors (EGF…
A comparison of energy deposition profiles produced by Geant4-based simulations against calorimetric measurements is reported, specifically addressing the low energy range. The energy delivered by primary and secondary particles is analyzed as a function of the penetration depth. The experimental data concern electron…
The UV-visible spectra of undoped and nominally transition metals (Ti→Cu) doped lead borate glasses have been measured from 200 to 1000 nm before and after various doses of gamma-ray irradiation. In the undoped lead borate glass, strong charge transfer ultraviolet absorption bands are observed which are related mostly…
A simple hydrothermal self-assembly method was adopted to grow a newly reported superhydrophobic reticulate ZnO film with papillary nodes. The formation mechanism has also been explained by the tension junction model. This structure can extremely enhance the dewettability for the surface modification with low-surface-…
Abstract Four research methods, such as weight loss test, electrochemical techniques, adsorption isotherm, and quantum chemical calculation, were employed in this paper to study the inhibition efficiency (IE) and inhibition mechanism of three 2H‐pyrazole‐triazole derivatives, BHOT, FHOT, and CHOT in 1 M HCl solution f…
Abstract A strongly textured sheet of magnesium alloy AZ31 has been subjected to tensile testing at temperatures between ambient and 300 °C. Structures have been examined by optical and transmission electron microscopy and also by atomic force microscopy to quantify surface displacements seen at grain boundaries. Plas…
This paper addresses the problem of modeling the thermal conductivity of carbon nanotubes (CNTs) of submicron length that have relatively low point-defect concentrations. Point defects are taken into account at the ends of these CNTs to model the commonly encountered situation where point defects are introduced uninte…
Recent studies on the physical properties of the triangular system based on the Pd(dmit)2 salts (dmit=1,3-dithiole-2-thione-4,5-dithiolate) are reviewed. Quantum chemical architectures of the Pd(dmit)2 molecule and its dimer are introduced with emphasis on the strong dimerization of a two-level system, which provides…
Tailoring the interaction between surfaces and nanoparticles (NPs) affords great opportunities for a range of applications, including sensors, information storage, medical diagnostics, and filtration membranes. In addition to controlling local ordering and microscale patterning of the NPs, manipulating the temporal fa…
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Research Article| April 01, 2009 Bentonites - Clays for Molecular Engineering Necip Güven Necip Güven *Center for Nanophase Research, IEIS Texas State University, San Marcos, Texas 78666-4616, USA E-mail: ng13@txstate.edu Search for other works by this author on: GSW Google Scholar Elements (2009) 5 (2): 89–92. https:…
New in situ Raman and synchrotron X-ray diffraction data (between 300 and 400 K) in conjunction with separate temperature-dependent Raman data (between 7 and 400 K) are presented. The low-frequency Raman spectra show good agreement with theoretical values obtained previously using periodic DFT calculations. The temper…
Abstract Cubic and octahedral Cu 2 O nano‐ and microcrystals were selectively synthesized via a simple wet chemical reduction route at room temperature, with CuCl 2 and NaOH as starting reactants, and ascorbic acid or hydrazine hydrate as the reducer. Hydrazine hydrate could be preferentially adsorbed on different cry…
Porphyrins and other pyrrolic macrocycles can participate in a range of pericyclic reactions. This review deals mainly with their use in Diels-Alder reactions (as dienes and dienophiles) and in 1,3-dipolar cycloadditions (as 1,3-dipoles and dipolarophiles)