Materials Literature
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We report a facile yet general in situ seed-mediated method for the synthesis of polymer-grafted gold nanoparticles with narrow size distributions (<10%), accurately tunable sizes, and excellent colloidal stability. This method can be extended to a broad range of types and molecular weights of polymer ligands. Nanopar…
FAD synthase (FADS, or FMN:ATP adenylyl transferase) coded by the FLAD1 gene is the last enzyme in the pathway of FAD synthesis. The mitochondrial isoform 1 and the cytosolic isoform 2 are characterized by the following two domains: the C-terminal PAPS domain (FADSy) performing FAD synthesis and pyrophosphorolysis; th…
The absorption and emission transitions of Tm 3+ -doped LiYF 4 have been extensively investigated due to the excellent properties and enormous applications of these materials as laser materials. However, the challenging issues regarding the local structure and luminescence mechanism have not been conclusively establis…
Abstract We report an experimental Quartz Crystal Microbalance (QCM) study of tuning interfacial friction and slip lengths for aqueous suspensions of TiO 2 and Al 2 O 3 nanoparticles on planar platinum surfaces by external electric fields. Data were analyzed within theoretical frameworks that incorporate slippage at t…
bonding interactions to strengthen the inter-cluster bonding in a synergistic fashion. With the present state of knowledge, such a particular bonding pattern appears to be a singular feature of the oxide chemistry of silver; however, as indicated by analogous findings in related silver oxides, it is evolving as a gene…
The data for this research contains the in-situ measured activity concentration of radionuclides and gamma-radiation dose rate obtained from the radiometric survey in Azara development area of Awe Local Government, Nasarawa State, Nigeria. The data were manually collected in eight (8) locations with 20 data taken from…
Досліджено процеси іммобілізації наночастинок срібла на активовану вуглецеву волокнисту наноструктурну матрицю (АВВНМ) різної об’ємної ємності — 0,344; 0,5—0,6 та 1,0 см3, яку здійснювали рідиннофазним та газофазним методами. Встановлено, що після іммобілізації срібла на зразки АВВНМ різної об’ємної ємності зберігаєть…
Colloidal PbSe nanocrystals (NCs) have gained considerable attention due to their efficient carrier multiplication and emissions across near-infrared and short-wavelength infrared spectral ranges. However, the fast degradation of colloidal PbSe NCs in ambient conditions hampers their widespread applications in infrare…
ABSTRACT Copolymerizing glutaraldehyde with tetraols such as diglycerol, meso ‐erythritol, and pentaerythritol is particularly effective for forming very high molecular weight polycycloacetals ( M n up to 65,000 g/mol) with elastomeric properties and up to 70% biorenewable content by weight. Altering the tetraol monom…
In order to reveal the physical drying characteristics of various kinds of cotton fabrics and further provide theoretical guides for designing drying equipment and improving drying technologies, a finite element model is built that is able to describe coupling of the drying process between fabrics and environment. Spe…
Abstract In this paper, properties of microparts molded from polypropylene/multiwalled carbon nanotubes (PP/CNT) composites were studied in detail. Results indicated that the percolation threshold of PP/CNT microparts shifted to higher filler concentrations when compared with their compression molded counterparts. Mor…
This paper deals with the thermal stability and decomposition behavior of brominated butyl rubber‐based damping material (BRP). The raw materials, butyl rubber matrix (IIR) and brominated phenolic resin (PF), were also investigated as control. IIR shows one decomposition stage, while PF shows four weight loss stages.…
This article describes a theory unifying the unusual performance of the undercoordinated adatoms, point defects, terrace edges, surfaces, and nanostructures of various shapes. The ideas of bond order-length-strength correlation and the associated nonbonding electron polarization (BOLS-NEP) feature that bonds between u…
We report the temperature-dependent electrical transport and photoconductivity in carbon nanoparticle films. The electrical transport is dominated by thermally activated conduction at higher temperatures in the range of ∼350–285 K, whereas at lower temperatures &lt;280 K, the conduction is mostly due to the hoppin…
We have investigated the structural stabilities and electronic properties for AA and the Bernal-stacked AB bilayer zigzag graphene nanoribbons (ZZGNRs) using first-principles calculations within density functional theory. The AB-stacked ZZGNR exhibits the spin-polarized state, while the AA-stacked ZZGNR has the nonmag…
In the double-exchange model, it is assumed that flattening the bond angles would result in larger electron hopping and in turn higher Curie temperature. In this work, the authors show atomic-scale imaging accompanied by detail magnetic characterization that shows the opposite, where the higher bond angle leads to hig…
Cyclic butadiyne-linked porphyrin(2.1.2.1) oligomers are synthesized from 5,16-diethynylporphyrin(2.1.2.1) by Glaser–Hay coupling. Porphyrin(2.1.2.1) forms a bent structure which gives advantages for making cyclic structure without templating molecules. We isolated cyclic trimer and tetramer and characterized them by…
Abstract In this work, a nanohybrid material based on a freestanding polymeric liquid crystal network capable of postmodification via cation exchange to tune birefringence is proposed. The smectic liquid crystal films can be infiltrated with a variety of cations, thereby changing the refractive indices ( n e and n o )…
Abstract In this paper, a tunable metamaterials absorber with Dirac semimetals and VO 2 strips is present in the Terahertz (THz) range. At room temperature, two absorption peaks are revealed at resonance frequencies 10.1 THz (76% amplitude) and 20.3 THz (60% amplitude), respectively. Based on the tunability of these t…
We have explored the effect of magnetic rare-earth dopants substitutionally incorporated on the Ba sites of ${\mathrm{BaSnO}}_{3}$ in terms of electronic transport, magnetism, and optical properties. We show that for ${\mathrm{Ba}}_{0.92}{R}_{0.08}{\mathrm{SnO}}_{3}$ thin films (where $R=\text{La,}\phantom{\rule{4.pt}…