Materials Literature
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This article presents a method for optimizing the deep cryogenic treatment (DCT) process parameters for 100Cr6 bearing steel, based on the Taguchi method with Grey relational analysis. The DCT parameters considered for the optimization included the cooling rate, soaking temperature, soaking time, and tempering tempera…
The N 2 O decomposition mechanism is investigated over Cu-ZSM-5 using density functional theory (DFT). Though the mechanism is extended from Fe/Co-ZSM-5, the results show that a different step may be rate-determining over Cu-ZSM-5 compared to the Fe/Co-ZSM-5 system. In the beginning, Z[Cu] as active center decomposes…
Abstract Uniform dispersion and strong interfacial interaction are two critical prerequisites for application of single‐walled carbon nanotubes (SWNTs) in polymer composites. To endow the composites with multifunctional feature, no damage on the chemical/electronic structure of SWNTs is also usually required. With the…
We successfully obtained Sn-doped SrTiO${}_{3}$ (SSTO) perovskites, and clarified their ferroelectricity and structural properties by using first-principles theoretical calculations. The ferroelectricity of SSTO was confirmed by the appearance of a dielectric permittivity maximum and a clear hysteresis loop of the rel…
AIM: The authors have investigated the usefulness of in vivo chemical exchange saturation transfer MRI for detecting gliomas using a dual-modality imaging contrast agent. MATERIALS & METHODS: A paramagnetic chemical exchange saturation transfer MRI contrast agent, Eu-1,4,7,10-tetraazacclododecane-1,4,7,10-tetraacetic…
Polarization resolved second harmonic generation (PSHG) is developed to study, at the microscopic scale, the impact of aging on the structure of type I collagen fibrils in two-dimensional coatings. A ribose-glycated collagen is also used to mimic tissue glycation usually described as an indicator of aging. PSHG images…
Abstract The eightfold 2a 0 ×2b 0 ×2c 0 superstructures of 6R‐Cu x Ta 1+ y S 2 are reported for crystal A with x = 0.237 and y = 0, and crystal B with x = 0.23 and y = 0.06. Compelling evidence is presented for the self‐intercalation of tantalum onto octahedral sites, based on the diffraction data and crystal chemical…
Abstract Nano‐sized Au and Pd catalysts are favorable for oxidations with molecular oxygen, and the preparation of this kind of nanoparticles with high catalytic activities is strongly desirable. We report a successful synthesis of bimetallic Au‐Pd nanoparticles with rich edge and corner sites on unique support of Mg‐…
Abstract A series of inorganic–organic hybrid block copolymers were synthesized via atom transfer radical polymerization using a fully condensed, ladder‐like structured polyphenylsilsesquioxane end‐functionalized macroinitiator. The inorganic portion, ladder‐like polyphenylsilsesquioxane, was synthesized in a one‐batc…
The thermal conductivities of pyrochlore oxide solid solutions of general formula (Er${}_{1\ensuremath{-}x}$Y${}_{x}$)${}_{2}$Ti${}_{2}$O${}_{7}$ with 0 \ensuremath{\leqslant} $x$ \ensuremath{\leqslant} 1 have been determined for high-quality single crystals aligned along the [110] direction, over the temperature rang…
This study demonstrates for the first time the efficiencies of in vitro derived plantsand callus cultures of Costus speciosus extract in the rapid biosynthesis of stable silve rnanoparticles. Synthesis of silver nanoparticles may be influenced directly or indirectly byphytochemicals in plants such as phenolics, flavon…
The first solid-state synthesis of diamond structure silicon nanocube structures with edge lengths of 8-15 nm is reported. It is well-established that controlled high-temperature processing of hydrogen silsesquioxane produces exceptionally well-defined pseudospherical silicon nanocrystals. However, only a small number…
Abstract Reaction of a Schiff base ligand derived from salicyloyl hydrazide and diacetyl monooxime (H 2 L) with a triangular μ 3 ‐oxido‐centered [Fe 3 (μ 3 ‐O)] 7+ core yields a new tetranuclear iron(III) complex. Fe III 4 (μ 4 ‐O) crystallizes in the triclinic space group P $\bar {1}$ . Structural studies reveal that…
Abstract Two new Dy 3 sandwich complexes, namely, [Dy 3 L a 3 (CH 3 OH) 2 (NO 3 ) 3 ] · CH 2 Cl 2 · CH 3 OH · 2H 2 O [ 1 , H 2 L a = N , N ′‐bis(salicylidene)‐1,2‐phenylenediamine] and [Dy 3 L b 3 (OAc) 3 ] · 3CH 3 OH · H 2 O [ 2 , H 2 L b = N , N ′‐bis(3‐methoxysalicylidene)‐1,2‐phenylenediamine], have been synthesiz…
This paper proposes a weaving design method to optimize the loading capability of microcapsule fabrics of yarns and fabrics, with moxa oil. A complex coacervation method was employed to prepare the moxa oil microcapsules by using gelatin-Arabic gum as wall material. The methods of orthogonal experimental design and an…
Breathing crystals based on polymer-chain complexes of Cu(hfac)(2) with nitroxides exhibit thermally and light-induced magnetostructural anomalies in many aspects similar to a spin crossover. In the present work, we report the synthesis and investigation of a new family of Cu(hfac)(2) complexes with tert-butylpyrazoly…
Abstract Temperature‐responsive PVCL homopolymers and functional PVCL polymers containing carboxylic acids are prepared in organic and aqueous solutions. PVCL bulk polymers are characterized using 1 H NMR, photometry, ATR‐FTIR, and thermal analysis. A finite phase transition at 37–40 °C occurs in aqueous solutions of…
In this paper, we present a solution for creating robust monolithic achromatic half-wave plates (HWPs) for the infrared, based on the form birefringence of subwavelength gratings (SWGs) made out of diamond. We use the rigorous coupled wave analysis to design the gratings. Our analysis shows that diamond, besides its o…
The advances in science have resulted in the emergence of nanotechnology, which deals with the design and use of tools and devices of size 1-100 nm. The application of nanotechnologies to medicine is thus termed nanomedicine. Significant research has been focused on this new and exciting field and this review article…
NADP(+) dependent isocitrate dehydrogenase (IDH; EC 1.1.1.42) belongs to a large family of α-hydroxyacid oxidative β-decarboxylases that catalyze similar three-step reactions, with dehydrogenation to an oxaloacid intermediate preceding β-decarboxylation to an enol intermediate followed by tautomerization to the final…