Materials Literature
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Molecular dynamics (MD) simulations were performed to determine the self-diffusivity ( D i,self ) and the Maxwell–Stefan diffusivity ( Đ i ) of hydrogen, argon, carbon dioxide, methane, ethane, propane, n -butane, n -pentane, and n -hexane in BTP-COF, which is a covalent organic framework (COF) that has one-dimensiona…
We study phase separation and transient gelation experimentally in a mixture consisting of polydisperse colloids (polydispersity: ≈ 6%) and non-adsorbing polymers, where the ratio of the average size of the polymer to that of the colloid is ≈ 0.062. Unlike what has been reported previously for mixtures with somewhat l…
The crystallization of a metastable melt is one of the most important non-equilibrium phenomena in condensed matter physics, and hard sphere colloidal model systems have been used for several decades to investigate this process by experimental observation and computer simulation. Nevertheless, there is still an unexpl…
Abstract Differential scanning calorimetry (DSC) was used to investigate the isothermal and nonisothermal crystallization kinetics of polyamide11 (PA11)/multiwalled carbon nanotube (MWNTs) composites. The Avrami equation was used for describing the isothermal crystallization behavior of neat PA11 and its nanocomposite…
The Eu 2+ and Mn 2+ codoped 50SiO 2 –17Al 2 O 3 –23MgF 2 –10NaF glasses and glass–ceramics were prepared and their luminescence properties were investigated. The red emission intensity of Mn 2+ in the Eu 2+ and Mn 2+ codoped glass was about five times stronger than that in the Mn 2+ doped glass, which could be attribu…
In some traumatic nerve injuries, autologous nerve grafting is the first choice for bridging the gap between the severed nerve ends. However, this therapeutic strategy has some disadvantages, including permanent loss of donor function and requirement of multiple surgeries. An attractive alternative to this therapeutic…
The synthesis and magnetic properties of five new homo- and heterometallic nickel(II) complexes containing artificial amino acids are reported: [Ni(4)(aib)(3)(aibH)(3)(NO(3))](NO(3))(4)·3.05MeOH (1·3.05MeOH), [Ni(6)La(aib)(12)](NO(3))(3)·5.5H(2)O (2·5.5H(2)O), [Ni(6)Pr(aib)(12)](NO(3))(3)·5.5H(2)O (3·5.5H(2)O), [Ni(5)…
We consider the interaction potential between two chiral rod-like colloids which consist of a thin cylindrical backbone decorated with a helical charge distribution on the cylinder surface. For sufficiently slender helical rods a simple scaling expression is derived which relates the chiral 'twisting' potential to the…
It is well known that the proper substitution of the azobenzene core allows tuning the thermal cis-to-trans isomerisation kinetics of azo dyes. The thermal isomerisation process of nitro-substituted azobenzenes is accelerated up to 13 times with respect to that in the common isotropic solvents when they are doped in n…
The mechanical and electronic properties, and the atomic deformation mechanism of recently reported monoclinic ($C$2/$m$) and body-centered-tetragonal ($I$4/mmm) carbon polymorphs are studied by first-principles methods. The calculated elastic moduli and ideal strengths suggest that both polymorphs have low compressib…
Bioencapsulation of living cells into silica materials derived from the sol–gel process has resulted in novel hybrid living materials with exciting functionalities. Despite the many successes in this field, long-term viability and activity of the encapsulated cells remain a significant obstacle to producing practical…
Van de Vijver B., Zidarova R., Sterken M., Verleyen E., de Haan M., Vyverman W., Hinz F. and Sabbe K. 2011. Revision of the genus Navicula s.s. (Bacillariophyceae) in inland waters of the Sub-Antarctic and Antarctic with the description of five new species. Phycologia 50: 281–297. DOI: 10.2216/10-49.1A revision of the…
Poly(3,4-ethylenedioxythiophene) (PEDOT) films doped with nitric and chlorine ions have been electrochemically deposited simply by a one-step electrochemical method in an aqueous media in the absence of any surfactant. The fabricated PEDOT films were characterized by scanning electron microscopy, transmission electron…
Aqueous suspensions of swelling clay minerals exhibit a rich and complex rheological behaviour. In particular, these repulsive systems display strong shear-thinning at very low volume fractions in both the isotropic and gel states. In this paper, we investigate the evolution with shear of the orientational distributio…
SUMMARY In this research, we evaluated the repeatability of microscale combustion calorimetry (MCC) measurement of heat release properties for different textile fabrics including polypropylene, cotton, polyester, Kevlar, acrylic, nylon, silk, and the cotton treated with an organophosphorus flame retardant. The repeata…
We have previously shown that inverse statistical-mechanical techniques allow the determination of optimized isotropic pair interactions that self-assemble into low-coordinated crystal configurations in the d-dimensional Euclidean space R(d). In some of these studies, pair interactions with multiple extrema were optim…
The aim of this paper is to evaluate the cellular uptake of vincristine sulfate-loaded poly(lactic-co-glycolic acid)-polyethylene glycol (PLGA-PEG) nanoparticles with the folic acid modification (PLGA-PEG-folate NPs). PLGA-PEG-folate NPs were prepared using a water-oil-water emulsion solvent evaporation method. The pa…
The mechanism of coloration of polyimides is investigated theoretically and experimentally. Since light is considered to be absorbed by polyimides via charge-transfer excitation, we used the long-range-corrected time-dependent density functional theory recently developed by Tawada et al. [Y. Tawada, T. Tsuneda, S. Yan…
Hydrogen-bond-assisted molecular aggregation of decavanadate anions, [H(n)V(10)O(28)]((6-n)-), in non-aqueous solutions was probed by systematic small-angle X-ray scattering and (1)H and (51)V NMR spectroscopic measurements in mixtures of acetone and 1,4-dioxane. Under acetone-rich conditions, the decavanadate anion p…
We predict the existence of coupled plasmon-phonon excitations in graphene by using the self-consistent linear response formalism. The unique electron-phonon interaction in graphene leads to unconventional mixing of plasmon and optical phonon polarizations. We find that longitudinal plasmons couple exclusively to tran…