Materials Literature
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The use of electrospun fibrous matrices as substrates for cell/tissue culture has usually been confined to those consisting of smooth fibers. Here, we demonstrated that in vitro responses of mouse-calvaria-derived preosteoblastic cells (MC3T3-E1) that had been cultured on electrospun fibrous substrates made from blend…
Carbon nanotubes (CNTs) have been the focus of extensive research in recent years due to their exceptional mechanical, thermal, and electrical properties (Treacy et al., 1996; Lourie et al., 1998; Yu et al., 2000; Lukic et al., 2005). As a result of their nanoscale dimensions and high surface area, CNTs could also be…
Woven fabrics are among the most important materials used in today's modern industries. Next to their high mechanical properties, they are easy to handle in the dry or preimpregnated pre-forms, offer good drape-ability and are particularly suited for manufacturing of doubly curved components, membranes, inflatable str…
Photolysis of poly(L-lactic acid) (PLLA) has many unclear points, such as the degradation mechanism, kinetics, products, and racemization mechanism. To clarify these features of PLLA photolysis, we examined the relationship between photolysis and racemization. The hexad stereosequential analysis of photodegraded PLLA…
This chapter is extended to various electronical and optical modifications of amorphous silica (a-SiO 2 ) layers as they are applied in microelectronics, optoelectronics, as well as in the forthcoming photonics. Scanning electron microscopy (SEM), energy dispersive X-ray analysis (EDX), Fourier transform infrared spec…
In line with recent environmental policies, increased attention has been paid to the development of bio-based nanocomposite materials for several industrial applications, such as automotive, construction, packaging or medical applications. Thus, much effort has been devoted to the use of natural fibers in composite ma…
Anodization of tungsten in NaOH leads to the growth of a porous tungsten oxide layer with either irregular trenches or isolated nanobubbles. For anodic potentials between 30 to 40 V and NaOH concentrations of 2–3 M, nanobubbles with diameters of ∼40 nm form spontaneously and self-organize into hexagonal close-packed o…
Abstract New thermoplastic poly(ether–urethane)s and poly(carbonate–urethane)s were synthesized by a one‐step melt polymerization from poly(oxytetramethylene) diol (PTMO) and poly(hexane‐1,6‐diyl carbonate) diol (PHCD) as soft segments, 4,4′‐diphenylmethane diisocyanate, and 2,2′‐[methylenebis(1,4‐phenylenemethyleneth…
2,3,7,8,12,13,17,18-Octaethyl-5,15-diphenylporphyrin (1) is characterized by an inner cavity with a rectangular shape and small NH⋅⋅⋅N distances. It resembles porphycene, which is a constitutional isomer of porphyrin known for its strong intramolecular hydrogen bonds and rapid tautomerization. Such distortion of the p…
In the last years, a variety of biopolymers have been investigated as soft matrices to accommodate inorganic nanoparticles (Darder et al., 2007; Dias et al., 2011). Innovation in Nanomedicine has been a major driving force to create new bionanocomposites because these materials bring together the intrinsic functionali…
Abstract We newly synthesized transparent films composed of pH-sensitive spin-crossover complex [FeII(diAMsar)] (diAMsar: 1,8-diaminosarcophagine) and an ion-exchange polymer, Nafion, having different colors corresponding to proton concentration. The UV–vis spectroscopic measurements revealed that the films, which wer…
Using a simple density functional theory (DFT) the height of the free energy barrier for forming a droplet of the liquid phase from the metastable gas phase is determined for a model colloidal fluid exhibiting competing interactions. The pair potential has a hard core of diameter σ, is attractive Yukawa at intermediat…
The sensitivity of magnetic resonance imaging (MRI) contrast agents is highly dependent on the rate of water exchange between the inner sphere of a paramagnetic ion and bulk water. Normally, identifying a paramagnetic complex that has optimal water exchange kinetics is done by synthesizing and testing one compound at…
Here, we describe an improved system for protein crystallization based on heterogeneous nucleation using fluorinated layered silicate. In addition, we also investigated the mechanism of nucleation on the silicate surface. Crystallization of lysozyme using silicates with different chemical compositions indicated that f…
We explore the electrical transport and magneto-conductance (MC) in quasi-two-dimensional strongly correlated ultra-thin films of LaNiO 3 (LNO) to investigate the effect of hetero-epitaxial strain on electron–electron and electron–lattice interactions from the low to intermediate temperature range (2–170 K). The fully…
Structures of CsTe₂O(6-x) phases were investigated by single-crystal X-ray diffraction and neutron powder diffraction. Stoichiometric CsTe₂O₆ is a mixed-valence Cs₂Te⁴⁺Te₃⁶⁺O₁₂ compound with a rhombohedral pyrochlore-type structure where there is complete order of Te⁴⁺ and Te⁶⁺. On heating, this compound develops sign…
Mobility of two-dimensional electron gases in MgZnO/ZnO heterostructures with interface roughness effects was investigated theoretically using path-integral framework. We modelled the roughness-induced fluctuation by including two major effects, i.e. the electron and polarization-induced positive charge concentrations…
Spider major ampullate silk is a high-performance biomaterial that has received much attention. However, most studies ignore plasticity in silk properties. A better understanding of silk plasticity could clarify the relative importance of chemical composition versus processing of silk dope for silk properties. It coul…
One of the most severe limits in future design of graphene-based electronic devices is that when supported on a substrate, the electron mobility of graphene is often reduced by an order of magnitude or more. In this paper, via theoretical calculations, we show that the non-polar β-Si3N4 (0001) surface may be an excell…
Temperature-dependent interplane resistivity ${\ensuremath{\rho}}_{c}(T)$ was measured systematically as a function of transition-metal substitution in the iron-arsenide superconductors Ba(Fe${}_{1\ensuremath{-}x}$$M$${}_{x}$)${}_{2}$As${}_{2}$, $M=\text{Ni}$, Pd, Rh. The data are compared with the behavior found in B…