Materials Literature
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We present a numerical technique, namely, triangular tessellation, to calculate the free energy associated with the adsorption of a colloidal particle at a flat interface. The theory and numerical scheme presented here are sufficiently general to handle nonconvex patchy colloids with arbitrary surface patterns charact…
ADVERTISEMENT RETURN TO ISSUEPREVCommentComment on "Tuning Magnetic Moments by 3d Transition-Metal-Doped Au6 Clusters"Tibor Höltzl†§∥, Peter Lievens‡§, Tamás Veszprémi∥, and Minh Tho Nguyen*†§View Author Information Department of Chemistry, Laboratory of Solid State Physics and Magnetism, Institute for Nanoscale Physi…
Abstract A series of porphyrins, M[TCPP‐Et 4 ] [M = Zn ( 1 ), Cu ( 2 ), and Ni ( 3 ); Et = CH 2 CH 3 ; TCPP = meso ‐tetra(4‐carboxyphenyl)porphyrin], M[TCPP‐Me 4 ] [M = Zn ( 4 ), Cu ( 5 ), and Co ( 6 ); Me = CH 3 ], and two nonmetalated compounds, TCPP‐Et 4 ( 7 ) and TCPP‐Me 4 · H 2 O ( 8 ), were synthesized by solvot…
NAD(+)-dependent formate dehydrogenase (FDH) catalyzes the oxidation of formate ion to carbon dioxide coupled with the reduction of NAD(+) to NADH. The crystal structures of the apo and holo forms of FDH from the methylotrophic bacterium Moraxella sp. C-1 (MorFDH) are reported at 1.96 and 1.95 A resolution, respective…
Fracture stress data for the chemical vapor deposition SiC coatings of tri‐isotropic carbon/silicon carbide‐coated fuel particles were obtained using a newly developed testing and evaluation method, and their relationship with microstructure was investigated. A crush testing technique using a blanket foil at load‐tran…
The application of a range of experimental techniques shows that "amorphous nickel sulfide" (the material precipitated from aqueous solutions of Ni(II) salts and S(II-) under ambient conditions) is actually a hydrated nanoparticulate material with an approximate formula NiS.1.5H(2)O. The particles comprise a crystalli…
Electronic transport at the $\ensuremath{\mu}\text{m}$ length scale is theoretically investigated for $N$-doped and vacancy damaged graphene nanoribbons. In these systems, localization due to scattering is strongly energy dependent, and this fact leads to the appearance of conductance quasigaps in the spectral region…
The initial rates of dissolution of synthetic apatites were determined using the rotating disc method. The reactivities of carbonated apatites in acidic media were directly related to their carbonate content. This appeared to be due, in part, to a decrease in the apparent activation energy for dissolution of carbonate…
Multiple coatings of La‐monazite (LaPO 4 ) were applied to Nextel ™ 610 and 720 oxide fibers using a heterogeneous nucleation and growth coating process with phytic acid solution precursors. The as‐processed coatings were found to be largely amorphous. Coated fibers were heat treated at 1200°C for 1–2 h, whereupon the…
Abstract The [(PtMo 6 O 24 ) 3 H 16 ] 8– , [(PtMo 6 O 24 ) 3 H 14 ] 10– , and [(PtMo 6 O 24 ) 4 H 23 ] 9– anions have been crystallized as tetra‐ n ‐butylammonium and tetra‐ n ‐butylammonium/triethylammonium salts and structurally characterized using single‐crystal X‐ray diffraction techniques. Together with the [(PtM…
We study the optical properties of metamaterials formed by layers of metallic nanoparticles. The effective optical constants of these materials are retrieved from the calculated angle-dependent Fresnel reflection coefficients for s and p incident-light polarization. We investigate the degree of anisotropy in the effec…
Predictions of the possible model parameterization and of the values of model characteristics such as R factors are important for macromolecular refinement and validation protocols. One of the key parameters defining these and other values is the resolution of the experimentally measured diffraction data. The higher t…
We report the morphology and orientation of the crystals which form within the microdomain structures of diblock copolymers of linear polyethylene and glassy poly(vinylcyclohexane), LPE/PVCH, across the spherical, cylindrical, and lamellar morphologies. Compared with short-branched polyethylene (such as hydrogenated p…
Abstract Carbon nanotubes (CNTs) have electrical and mechanical properties that make them highly attractive for actuators. They have the ability to deform elastically by several percent, thus storing very large amounts of energy, thanks to their crystalline nature and to their morphology. A bimorph actuator composed o…
By employing the first-principles calculations, we investigate electronic properties of a novel carbon nanostructure called a carbon nanobud, in which a C 60 molecule covalently attaches or embeds in an armchair carbon nanotube. We find that the carbon nanobud exhibits either semiconducting or metallic behavior, depen…
We report on the chemical synthesis, structural and compositional characterization, and hierarchical organization of Co-core, concentric CoO–Au multi-shell nanocrystals (Co@CoO@Au). Based on electron microscopy, magnetometry and spectroscopy experiments, we present compelling evidence for the formation of the Au outer…
Wear maps illustrating the tribological benefits imparted to interstitially hardened austenitic stainless steels carburised at low temperatures and sliding against alumina were developed using pin-on-disk wear tests. Low temperature carburisation enables the use of austenitic stainless steel grade 316L under applied l…
Among versatile perovskite manganites showing colossal magnetoresistance (CMR), ${\text{Eu}}_{1\ensuremath{-}x}{\text{Sr}}_{x}{\text{MnO}}_{3}$ around $x\ensuremath{\sim}0.4$ shows the ferromagnetic metal with the lowest transition temperature $(\ensuremath{\sim}40\text{ }\text{K})$ due to the narrowest one-electron b…
A hydroxyl-functionalized alkoxyamine derived from the SG1 nitroxide was used as a dual initiator for ring-opening polymerization (ROP) of ε-caprolactone (CL) and nitroxide-mediated polymerization (NMP) of n -butyl acrylate (BA) to obtain the corresponding block copolymer. Both sequential and one-step strategies were…
We report the influence of surface morphology and charge of alginate/chitosan (ACA) microcapsules on both the amount of adsorbed protein and its secondary structural changes during adsorption. Variations in surface morphology and charge were controlled by varying alginate molecular weight and chitosan concentration. P…