Materials Literature
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In this paper, we employ a molecular theory to study HCl gas‐adsorption/desorption properties of PNIPAM brushes. Here, PNIPAM–HCl hydrogen bonds and theirs explicit coupling to the PNIPAM conformations are considered. We find that hydrogen bonding becomes a key element in determining HCl gas‐adsorption/desorption beha…
Ultrafine-grained sintered Nd-Fe-B magnets were produced from jet-milled hydrogenation-disproportionation-desorption- recombination powders in a proper sintering condition. The coercivity of ~15 kOe was obtained by sintering below 950 °C, and the average grain size was <;1 μm. For the newly fine-grained magnets, a hig…
Bottom-up approaches to nanofabrication are of great interest because they can enable structural control while minimizing material waste and fabrication time. One new bottom-up nanofabrication method involves excitation of the surface plasmon resonance (SPR) of a Ag surface to drive deposition of sub-15 nm Au nanopart…
Background: Bismuth doped optical fibers (BDFs) have potential application in the area of broadband VIS and NIR luminescence in the range from 350-700 nm and 1100 to 1600 nm without presence of any rare-earth elements. Such fibers are studied intensively and used successfully in fiber amplification and lasing particul…
A crystalline solid exhibits thermally induced localised non-affine droplets in the absence of external stress. Here we show that upon an imposed shear, the size of these droplets grow until they percolate at a critical strain, well below the value at which the solid begins to yield. This critical point does not manif…
Porphyrins are approved as agents to localize malignant tissues by several investigators. There is a great potential interest in the use of porphyrin derivatives capable of high selective accumulation in malignant tissues for the imaging of malignancies. Whilst the porphyrin-based compounds penetrate tumor cells selec…
MnZn ferrite nanoparticles (NPs) with MnxZn1-xFe2O4(x = 0 and 0.6) compositions have been synthesized by sol-gel process. As prepared (AP) particles were annealed at 1200 °C in air to compare the physical properties of NPs with their bulk counterparts. The crystallite sizes of AP samples were estimated to be 18 nm for…
Nanocomposite Nd2Fe14B/SmCo5permanent magnets with different weight ratios have been prepared by spark plasma sintering mixtures of homemade amorphous SmCo5powders and commercially available Nd2Fe14B powders. The magnetic properties of the nanocomposite magnets are sensitive to the ratio of the two hard phases. The pe…
Nanoparticles of cobalt oxide (Co3O4), of size 4.2 nm, were fabricated by heating Cobalt (Co) nanoparticles synthesized using dimethyl sulfoxide solvent. The temperature dependence of magnetization for field cool and zero field cool processes of Co3O4nanoparticles shows the bifurcation at 44 K. A cusp is observed at 1…
In this work, we have conducted a blend of type I collagen and dencichine under acid conditions, followed by investigating the intermolecular interactions between the two components. Fourier transform infrared spectroscopy (FTIR), molecular modeling methods, the circular dichrorism (CD) measurement, and X‐ray photoele…
This procedure describes a method for the fabrication of large-area and ultrathin free-standing polymer films. Typically, ultrathin films are prepared using either sacrificial layers, which may damage the film or affect its mechanical properties, or they are made on freshly cleaved mica, a substrate that is difficult…
In this paper, the transition from smooth layer to nanostructured one during plasma deposition of polyaniline is demonstrated. The deposition mechanism at low discharge power allows obtaining a smooth layer with well-defined chemical structure while high discharge power gives a structured layer but does not preserve t…
A class of carboxyl and carboxylate ester-substituted dithiafulvene (DTF) derivatives and tetrathiafulvalene vinylogues (TTFVs) has been synthesized and their electronic and electrochemical redox properties were characterized by UV-vis spectroscopic and cyclic voltammetric analyses. The carboxyl-TTFV was applied as a…
Abstract. Calcium carbonate (CaCO3) plays an important role in the natural environment as a major constituent of the skeleton and supporting structure of marine life and has high economic importance as an additive in food, chemicals and medical products. Anhydrous CaCO3 occurs in the three different polymorphs calcite…
Improved field emission properties are demonstrated based on the multidimensional graphene-carbon nanotube (G-CNT) emitters decorated with gold nanoparticles (AuNPs). Chemical vapor deposition and screen printing are adopted to prepare the complex structures of G-CNT emitters. The AuNPs decoration of the emitters is i…
Cellular organelles have been shown to shuttle between cells in co-culture. We hereby show that titanium dioxide (TiO2) nanoparticles (NPs) can be transferred in such a manner, between cells in direct contact, along with endosomes and lysosomes. A co-culture system was employed for this purpose and the NP transfer was…
The simplest means of altering the chemistry and electronic structure of any material, from molecular clusters to single crystals, is by the introduction of chemical impurities. We present a systematic study of the cation exchange reaction involving Co(2+) ions with metal benzenethiolate clusters, [M4(SPh)10](2-) (M =…
Polymers can be used in diverse applications in daily life because of their various microstructures. Molecular weight distribution and chemical composition distribution are the two most important microstructural indices for many copolymers. Monte Carlo simulation is an efficient method to obtain those specific distrib…
The structural response of coexisting multiple martensites to stress field in a Ni–Mn–Ga multifunctional alloy was investigated by the in situ high-energy x-ray diffraction technique. Stress-induced transformation between coexisting multiple martensites was observed at 110 K, at which five-layered modulated (5M), seve…
BACKGROUND: Imperata cylindrica is being considered as a biomass candidate for bioethanol. This work aimed to evaluate a mild alkali pretreatment effect on the Imperata recalcitrant structure. Therefore, varied concentrations of NaOH (0, 7.5, 15, 20, and 25 g L(-1) ) were applied as treatments to Imperata at 105 °C fo…