Materials Literature
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AIM: Development of EGF-liposomes (LP-EGF) for selective molecules delivery in tumors expressing EGFR. MATERIAL & METHODS: In vitro cellular interaction of EGF-LP and nontargeted liposomes (LP-N) was assayed at 37 and 4 °C in cells expressing different EGFR levels. Receptor-mediated uptake was investigated by competit…
Graphene monolayer, with extremely low flexural stiffness, displays spontaneous rippling due to thermal fluctuations at a finite temperature. When a graphene membrane is placed on a solid substrate, the adhesive interactions between graphene and the substrate could considerably suppress thermal rippling. On the other…
Computational studies of complex defects in graphene usually need to deal with a larger number of atoms than the current first-principles methods can handle. Here, we show that a recently developed three-center tight-binding potential for carbon is very efficient for large scale atomistic simulations and can accuratel…
A new tree-like ZnO/CdSSe nanocomposite with CdSSe branches grown on ZnO nanowires prepared via a two-step chemical vapor deposition is presented. The nanotrees (NTs) are vertically aligned on a substrate. The CdSSe branches result in strong visible light absorption and form a type-II heterojunction with the ZnO stem…
Almost a decade ago, transformation optics established a geometrical perspective to describe the interaction of light with structured matter, enhancing our understanding and control of light. However, despite their huge technological relevance in applications such as optical circuitry, optical detection, and actuation…
A light-triggered strategy to functionalize nanodiamonds (NDs) with well-defined functional polymers is presented. The employed grafting approach is based on o -methylbenzaldehydes, which upon UV irradiation form o -quinodimethanes that undergo Diels–Alder reactions with dienophiles. A series of well-defined maleimide…
Today Cancer still remains a major cause of mortality and death worldwide, in humans. Chemotherapy, a key treatment strategy in cancer, has significant hurdles such as the occurrence of chemoresistance in cancer, which is inherent unresponsiveness or acquired upon exposure to chemotherapeutics. The resistance of cance…
Composites of TiO2 (Hombikat, P25, sol-gel synthesis) and zeolite ZSM-5 (nSi/nAl = 55) with mass fractions from 25/75 to 75/25 were prepared by mechanical mixing, solid-state dispersion and sol-gel synthesis. Characterization of the composites by X-ray diffraction (XRD), N2-sorption, scanning electron microscopy (SEM)…
Graphene oxide (GO) and silver nanoparticles (Ag NPs) sequentially decorated nitrogen‐doped titania nanotube array (N‐TiO 2 NTA) had been designed as visible‐light‐driven self‐cleaning surface‐enhanced Raman scattering (SERS) substrate for a recyclable SERS detection application. N‐TiO 2 NTA was fabricated by anodic o…
The cutting process has a substantial influence on the ferromagnetic material properties of electrical steel sheets. In this paper, the properties of the degraded and nondegraded zones result from data obtained by two Epstein frame measurements using sample strips of two different widths. The magnetic characteristics…
We present density-functional theory calculations of the lattice dynamics of bismuth telluride, yielding force constants, mean-square displacements and partial densities of phonon states which corroborate and complement previous nuclear inelastic scattering experiments. From these data, we derive an element- and energ…
Stability of quantum dot (QD) films is an issue of concern for applications in devices such as solar cells, LEDs, and transistors. This paper analyzes and optimizes the passivation of such QD films using gas-phase deposition, resulting in enhanced stability. Crucially, we deposited alumina at economically attractive c…
The origins of up-up-down-down ($\ensuremath{\uparrow}\ensuremath{\uparrow}\ensuremath{\downarrow}\ensuremath{\downarrow}$) magnetic structure and ferroelectricity discovered in multiferroic ${\mathrm{Lu}}_{2}{\mathrm{CoMnO}}_{6}$ have been studied on the basis of first-principles calculations. The energy of $\ensurem…
The present investigation was done to explore the potential of Lantana camara (L. camara) flower in the fabrication of gold nanoparticles (AuNPs). The shape and size of AuNPs have been successfully controlled by introducing small amounts of L. camara flower extract. It produced spherical nanogold of average size 10.6…
A special catalytic growth effect (called the "external-field-induced effect") was found to exist on the poisoning target surface during the reactive sputtering process of a-C:H films. Enlightened by this effect, we demonstrate a facile approach to manipulate the medium-range-ordered nanostructure and mechanical and t…
ABSTRACT The smooth and uniform polymer of intrinsic microporosity (PIM‐1) fibers, which have high adsorption capacities toward organic contaminants from nonaqueous systems, were successfully obtained by electrospinning. According to the N2 adsorption–desorption analysis, the surface area of the PIM‐1 fibers was highe…
The optical properties of several iron oxide@noble metal core–shell nanohybrids (NHs) have been systematically studied by means of electrodynamics simulations applying Mie theory for coated spheres. Focus has been made in analyzing the dependence of the absorption cross section C abs on the composition as well as on t…
The spontaneous emission coefficient, Arad, a global molecular property, is one of the most important quantities related to the luminescence of complexes of lanthanide ions. In this work, by suitable algebraic transformations of the matrices involved, we introduce a partition that allows us to compute, for the first t…
When exposed to divalent counterion solutions, polyelectrolyte multilayer (PEM) films of poly(diallyldimethylammonium chloride) and sodium poly(styrenesulfonate) (NaPSS) prepared in the presence of monovalent salt, or equilibrated with such a salt, are physically cross-linked by divalent counterion incorporation, alte…
Despite wide studies of Na0.5Bi0.5TiO3, structure of this material and its connection with the observed physical properties still raise numerous questions due to mutually contradicting results obtained. Here, structure and dielectric properties of poled and unpoled Na0.5Bi0.5TiO3-CaTiO3 solid solutions are studied, pr…