Materials Literature
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With the emerging technology in the 21st century, which requires higher electrochemical performances, metal oxide composite electrodes in particular offer complementary properties of individual materials via the incorporation of both physical and chemical charge storage mechanism together in a single electrode. Numero…
We present measurements of spin relaxation times (T1, T1ρ, T2) on very shallow (≲5 nm) nitrogen-vacancy centers in high-purity diamond single crystals. We find a reduction of spin relaxation times up to 30 times compared to bulk values, indicating the presence of ubiquitous magnetic impurities associated with the surf…
Abstract Three-dimensional microscopy has become an increasingly popular materials characterization technique. This has resulted in a standardized processing scheme for most datasets. Such a scheme has motivated the development of a robust software package capable of performing each stage of post-acquisition processin…
The development of innovative techniques for the functionalization of carbon nanotubes that preserve their exceptional quality, while robustly enriching their properties, is a central issue for their integration in applications. In this work, we describe the formation of a covalent network of porphyrins around MWNT su…
Thermal interface materials (TIMs) are of ever-rising importance with the development of modern microelectronic devices. However, traditional TIMs exhibit low thermal conductivity even at high loading fractions. The use of high-aspect-ratio material is beneficial to achieve low percolation threshold for nanocomposites…
We report the design of a bottle-brush polymer whose architecture closely mimics the lubricating protein lubricin. Interaction forces, assessed using a Surface Forces Apparatus (SFA), between two mica surfaces fully covered by the polymer demonstrate that the polymer adopts a loop conformation giving rise to a weak an…
We synthesized the needle-like cobalt oxide/graphene composites with different mass ratios, which are composed of cobalt oxide (Co3O4 or CoO) needle homogeneously anchored on graphene nanosheets as the template, by a facile hydrothermal method. Without the graphene as the template, the cobalt precursor tends to group…
Graphene and graphene-like two-dimensional (2D) materials have attracted much attention due to its extraordinary electronic and optical properties, which accommodate a large potential in optoelectronic applications such as photodetection. However, although much progress has been made, many challenges exist in fundamen…
Zinc oxide can be called a multifunctional material thanks to its unique physical and chemical properties. The first part of this paper presents the most important methods of preparation of ZnO divided into metallurgical and chemical methods. The mechanochemical process, controlled precipitation, sol-gel method, solvo…
Abstract The magnetization behavior in the Ni2Mn1.36In0.64 Heusler compound has been investigated using the 3‐6 states Potts Hamiltonian with real unit cell and magnetic exchange couplings calculated from first principles. The random quenched exchange couplings between magnetic atoms located at different coordination…
During a reorganization of the mineralogical collection of Turin University, old samples of the so-called mohsite of Colomba were found. “Mohsite” was discredited in 1979 by Kelly et al., as a result of some analyses performed on the equivalent material coming from the French region of Hautes-Alpes, but the original s…
Although calcium carbonate has been proved to be effective in neutralizing the acid degradation products of poly( l ‐lactic acid) (PLLA), it has no osteoinductivity. In this study, casein phosphopeptides (CPPs)‐containing CaCO 3 vaterite were synthesized by fast precipitation in an aqueous solution of CaCl 2 , Na 2 CO…
A new uncommon epilithic diatom, Eunotia relicta sp. nov., is described from a small oligotrophic, acidic stream in the Chapada Diamantina region, northeast Brazil. Eunotia relicta is a typical eunotioid form with a pronounced arch on the dorsal side of the valve mainly in smaller valves. Contrary to most Eunotia spec…
A superabsorbent resin (SAR) synthesized from carboxymethyl cellulose (CMC) by grafting acrylic acid (AA) was studied using single-factor analysis. The optimum preparation conditions were as follows: plasma discharge power of 250 W, processing time of 90 s, pressure of 300 Pa, m(CMC):m(AA) ratio of 1:9, m(K2S2O8):m(CM…
Ferroics include a range of materials classes with functionalities such as magnetism, polarization, and strain. We review coexistence and glassy behavior, as studied over the last decade, in systems such as perovskite manganites, ferroelectrics, and martensites to distil a common theme that includes the interplay of l…
Abstract We demonstrate that the imidazole‐based ligand 1 efficiently produces a coordination polymer gel by simple mixing with Co 2+ ion. When the molar ratio of CoCl 2 to ligand 1 was less < 1, a red sol was obtained, indicating the formation of an octahedral ( O h ) complex species as occurs with Co(NO 3 ) 2 . I…
We have carried out systematic studies on Goethite nanoparticles doped (dispersed) HPMC polymer films to quantify the changes in their structural properties, the conductivity, and IR absorbance of films. It is observed that the addition of nanoparticles has significant influence on changing structural parameters and h…
A series of magnetic fluorinated polybenzobisoxazole (6FPBO)/silica‐coated Fe 3 O 4 magnetic nanoparticles composites were synthesized through in‐situ polymerization. The structure and morphology of the obtained nanocomposites were characterized by X‐ray diffraction, transmission electron microscopy, and scanning elec…
Based on the characteristic of histograms for fiber length, a finite mixture model has been applied in this paper to characterize cotton fiber length probability distribution, which made it possible to describe the entire fiber length distribution with a parametric continuous function. With the analysis of previous re…
Silk fibroin scaffolds obtained via regeneration by Ajisawa's reagent (CaCl 2 /H 2 O/EtOH, mole ratio 1:8:2) and freeze‐drying followed by steam sterilization resulted unstable when incubated in physiological medium over 1‐month period since the oxygen diffusivity and mechanical resistance to compression significantly…