Materials Literature
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Abstract This aricle aims at investigating for the first time the ability of using poly(3‐hydroxylbutyrate‐co‐3‐hydroxyvalerate) (PHBV)/wheat straw fibers (WSF) biocomposites as food contact materials for packaging applications. For that purpose, the impact of the filler size and content on overall migration and mecha…
The oxidation process of samariumoxysulfide was studied in the temperature range of 500–1000 °C. Our DTA investigation allowed for establishing the main thermodynamic (∆Hºexp = −654.6 kJ/mol) and kinetic characteristics of the process (Ea = 244 kJ/mol, A = 2 × 1010). The enthalpy value of samarium oxysulfate (ΔHºf (Sm…
The anodic polarization response of magnesium alloy AZ31 was first characterized during exposure to aerated 0.1 M NaCl solutions with millimolar additions of NaVO3, Na3PO4, Na2HPO4, NaF and various pairings to assess their ability to inhibit corrosion kinetics and retard localized corrosion. Each of the candidate inhi…
Characterization of excited-state relaxation of semiconductor nanocrystals by ultrafast spectroscopy is complicated by the fact that an excitation pulse produces a distribution of excited-state populations (e.g., single excitons, biexcitons, triexcitons, etc.). The decay kinetics of these species are usually character…
Although the composition of polymer matrix is only ≈5% by weight, the presence of polymer as an interlayer between the brittle aragonite bricks significantly enhances the toughness characteristics of the natural nacre. In this study, the mechanics of nacre-like brick-mortar structures is investigated through numerical…
BACKGROUND AND PURPOSE: Assess the evolution of gadolinium consumption and magnetic resonance imaging (MRI) scanners in France and Western Brittany (France) and compare regional practices between public and private hospitals for each organ specialty. MATERIAL AND METHODS: We collected data from national and universal…
Abstract A series of konjac glucomannan (KGM) and mung bean starch (MBS) blend films with different mixing ratios are prepared, and their microstructure, molecular interactions, and film properties are evaluated. Results indicate that increased KGM content can contribute to the smoother and denser microstructure of th…
In this work, a picolinohydrazide-based covalent organic polymer ( COP ) is synthesized. COP acts as an efficient catalyst toward the Knoevenagel reaction between aromatic aldehydes and malononitrile at 30 °C. Apart from catalysis, COP could efficiently remove Ca 2+, Cu 2+, Cd 2+, Hg 2+, and Pb 2+ ions from wastewater…
The physical and mechanical properties of wood (WPC) and biochar polymer composites (BPC) obtained at different pyro-gasification temperatures and different fiber proportions were investigated. Composite pellets made from wood chips or biochar and thermoplastic polymers (polypropylene or high-density polyethylene) wer…
Aptamer-based approaches are very promising tools in nanomedicine. These small single-stranded DNA or RNA molecules are often used for the effective delivery and increasing biocompatibility of various therapeutic agents. Recently, magnetic nanoparticles (MNPs) have begun to be successfully applied in various fields of…
Abstract Mercury (Hg) is extremely toxic, and continues to cause major threats to aquatic life, human health and the environment. Hg2+ mainly derives from seawater as a product of atmospheric deposition, therefore there is great demand for sensing approaches that can detect Hg2+ in seawater samples. Herein, we demonst…
Abstract In this study, a dense Al 2 O 3 –Y 3 Al 5 O 12 (YAG) ceramic was synthesized by flash sintering a powder mixture of Al 2 O 3 and Y 2 O 3 in less than 150 seconds at a furnace temperature of 1350°C. The resultant ceramic has a well‐defined eutectic structure consisting of alternating Al 2 O 3 and YAG layers. T…
Abstract Green synthesis of nanoparticles using plants has become a promising substitute for the conventional chemical synthesis methods. In the present study, our aim was to synthesize chromium oxide nanoparticles (Cr 2 O 3 NPs) through a facile, low‐cost, eco‐friendly route using leaf extract of Rhamnus virgata (RV)…
A new mononuclear Dysprosium based Coordination Polymer {Dy-CP} was investigated magnetically using dc and ac magnetic susceptibility. The dc magnetic susceptibility does not exhibit any long-range ordering down to 1.8 K and the negative value of Curie Constant (~ - 4 K) indicate the dominance of antiferromagnetic int…
The layered magnetic topological insulator MnBi$_2$Te$_4$ is a promising platform to realize the quantum anomalous Hall effect because its layers possess intrinsic ferromagnetism. However, it is not well understood why the high-spin $d^5$ magnetic ions Mn$^{2+}$ forming the Mn-Te-Mn spin exchange paths prefer ferromag…
The properties of hydrogen at high pressure have wide implications in astrophysics and high-pressure physics. Its phase change in the liquid is variously described as a metallization, H2-dissociation, density discontinuity or plasma phase transition. It has been tacitly assumed that these phenomena coincide at a first…
Pressure significantly modifies the microscopic interactions in condense phase, leading to new patterns of bonding and unconventional chemistry. Both argon and xenon possess closed-shell electronic structures, which renders them chemically unreactive. Using unbiased structure searching techniques combined with first-p…
Photoswitching dynamics of common organic photoisomers in solid state are often reduced compared to the solution state due to the close packing of molecules that limits structural changes. The facile solid-state switching of photoisomers has implications in developing novel light-controlled devices such as actuator, f…
Incorporation of non-equilibrium actions in the sequence of self-assembly processes would be an effective means to establish bio-like high functionality hierarchical assemblies. As a novel methodology beyond self-assembly, nanoarchitectonics, which has as its aim the fabrication of functional materials systems from na…
As the most abundant biopolymer on the earth, cellulose has recently gained significant attention in the development of antibacterial biomaterials. Biodegradability, renewability, strong mechanical properties, tunable aspect ratio, and low density offer tremendous possibilities for the use of cellulose in various fiel…