Materials Literature
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In this study, we developed macrocyclic peptide building blocks that formed self-assembled peptide vesicles with molecular recognition capabilities. Macrocyclic peptides were significantly different from conventional amphiphiles, in that they could self-assemble into vesicles at very high hydrophilic-to-total mass rat…
The self-assembly of polystyrene- block -poly(methyl methacrylate) (PS- b -PMMA) copolymer (BCP) films, leading to hexagonal arrays of perpendicular PMMA cylinders in a PS matrix, and its ordering kinetics were investigated using ex situ and in situ grazing incidence small-angle X-ray scattering (GISAXS). The ex situ…
Ordered perovskite-type MTiO3/TiO2 nanotube arrays (NTAs) (M = Zn, Co, Ni) are prepared by a general hydrothermal route based on amorphous TiO2 NTAs via electrochemical anodization of Ti foil. The as-anodized amorphous TiO2 is not stable and can react with H2O in solution producing soluble Ti(OH)62− to form anatase na…
A simple dual luminescent acylhydrazone-functionalized benzimidazole derivative (L) was blended with ethylene glycol affording a thermo-responsive green-light-emitting supramolecular gel (G-gel). This G-gel can convert to a blue-light-emitting gel (B-gel) by strongly increasing the luminescence of the benzimidazole mo…
Poly(silafluorene-phenylenedivinylene)s and poly((tetraphenyl)-silole- phenylenedivinylene)s are promising materials to be used as chemical sensors for explosives detection. The optoelectronic properties of these polymers as well as their constituent units have been investigated by modeling the properties of their exc…
Silicon nanoparticles exhibit quantum confinement and function as optoelectronic devices whose optical properties are known to depend strongly on size and surface termination. The effect of nanoparticle shape on optical properties, however, has not yet been investigated. In this work we use tight binding and density f…
The aim of the present study was to formulate methylprednisolone acetate -Eudragit(®) RS100 nanofibers and nanobeads by the electrospinning method. The physicochemical characteristics of the prepared electrospuns were assessed as well. The particle size and morphology were evaluated using scanning electron microscopy.…
Obtaining good surface finish in tool steels by conventional machining is a difficult task. Nontraditional material removal processes, for example, wire electro discharge machining (WEDM), are very useful for precision manufacturing. In WEDM, it is very difficult to choose the correct combination of machining paramete…
Bimetallic systems present new opportunities to tailor the optical properties of nanoparticles. Morphology, structural, and optical properties of gold and of gold–silver nanoparticles have been studied by three-dimensional (3D) scanning transmission electron microscopy (STEM), STEM imaging, and monochromated subnanome…
Supramolecular nanofibers of prodrugs hold advantages for drug release due to their high drug payload, sustained and constant drug release behavior, and stimuli responsiveness. In this study, we report on a supramolecular hydrogel mainly formed by a clinically used drug triamcinolone acetonide (TA). Such a hydrogel co…
The fragility parameter has been acknowledged as one of the most important characteristics of glass-forming liquids. We show that the mystery of the dramatic change in molecular dynamics of systems approaching the glass transition can be better understood by the high pressure study of fragility parameters defined in d…
The investigation of the system Sm–Ba–Fe-O in air has allowed an oxygen deficient perovskite Sm 2-ε Ba 3+ε Fe 5 O 15-δ (δ = 0.75, ε = 0.125) to be synthesized. In contrast to the XRPD pattern which gives a cubic symmetry ( a p = 3.934 Å), the combined HREM/EELS study shows that this phase is nanoscale ordered with a q…
Conjugated phenylenevinylene oligoelectrolytes, which consist of a phenylenevinylene core equipped at each end with hydrophilic pendent groups, are shown to be good candidates for mammalian cell membrane staining. When used in the micromolar concentration range, they express low to moderate cell toxicity for selected…
In this article, we describe the engineering and X-ray crystal structure of Thermal Green Protein (TGP), an extremely stable, highly soluble, non-aggregating green fluorescent protein. TGP is a soluble variant of the fluorescent protein eCGP123, which despite being highly stable, has proven to be aggregation-prone. Th…
Photocured polymeric films are a promising candidate for the realization of flexible electronics, due to their easy processability, low cost, and availability. In this work, electrically conductive UV‐cured films have been prepared by irradiating an acrylic difunctional monomer in the presence of silver nitrate, pyrro…
We presented a comparative investigation on the morphological and structural properties of the produced ZnO nanowires (NWs) on c-Al2O3 substrates under different preparation conditions. The effects of a low-temperature nucleation layer, reaction pressure and light irradiation on the alignment, diameter and growth rate…
Recent findings show the emergence of two-dimensional electron gases (2DEGs) at LaAlO(3)/SrTiO(3) interfaces along different orientations; yet details on band reconstructions have remained so far unknown. Via x-ray linear dichroism spectroscopy, we demonstrate that crystal symmetry imposes distinctive 2DEG orbital hie…
The development of smart composites capable of self-repair in aeronautical structures is still at the planning stage owing to complex issues to overcome. It is critical that self-healing activity functions at low working temperatures which can reach values as low as −50 °C. Also, another problem concerns the component…
We investigate the controlled deposition of Keggin polyoxometalate (POM) anions, PMo 12 O 40 3– and PMo 12 O 40 2–, onto different self-assembled monolayer (SAM) surfaces via soft landing of mass-selected ions. Utilizing in situ infrared reflection absorption spectroscopy (IRRAS), ex situ cyclic voltammetry (CV), and…
Near-IR (NIR)-responsive drug delivery systems have received enormous attention because of their good biocompatibility and the high biological penetration of NIR. This work describes the facile fabrication and anticancer effect of a NIR-responsive drug delivery system based on the nano-assembly of mesoporous silica-co…