Materials Literature
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An original magnetic bistability and a thermochromic transition are observed in a new Cu(II) molecular chain. Thermal structural studies reveal changes in the Cu(II) coordination sphere, driven by a more pronounced Jahn-Teller effect at low temperature. These distortions provoke a gradual color change. The structural…
This paper reports a molecular-dynamics study on the clustering of ${\text{Eu}}^{3+}$ ions incorporated in ${\text{SiO}}_{2}$ glass. Classical molecular-dynamics experiments were carried out on $x{\text{Eu}}_{2}{\text{O}}_{3}\text{\ensuremath{-}}(100\ensuremath{-}x){\text{SiO}}_{2}$ ($x=0$, 1, 2, 3, 4, and $5\text{ }\…
Abstract Ring‐opening polymerization (ROP) of glycolide was studied in melt conditions and in the presence of two different initiators: 1‐dodecanol and 1,4‐butanediol and tin(II) 2‐ethylhexanoate as catalyst. Its subsequent polymerization provided poly(glycolic acid) with controlled molar masses ranging from 2000 to 4…
The aim of this study was to evaluate the osteogenic potential and the vascularization of embroidered, tissue engineered, and cell-seeded 3D poly(3)hydroxybutyrate (PHB) scaffolds in nude rats. Collagen I (coll I)- and collagen I/chondroitin sulfate (coll I/CS)-coated PHB scaffolds were seeded with human mesenchymal s…
A surface functionalization methodology for the development of ZnO nanotips biosensors that can be integrated with microelectronics was developed. Two types of long chain carboxylic acids linkers were employed for the functionalization of 0.5 mum thick MOCVD-grown ZnO nanotip films with single-stranded DNA (ssDNA), fo…
The synthesis and selected macroscopic properties of a new model system consisting of poly(N-isopropylacrylamide) (PNIPAM)-coated rod-like fd virus particles are presented. The sticky rod-like colloids can be used to study effect of particle shape on gelation transition, the structure and viscoelasticity of isotropic…
We have demonstrated lithography-free, simple, and large area fabrication method for subwavelength antireflection structures (SAS) to achieve low reflectance of silicon (Si) surface. Thin film of Pt/Pd alloy on a Si substrate is melted and agglomerated into hemispheric nanodots by thermal dewetting process, and the ar…
Cadmium oxide (CdO) micro-octahedrons and nanowires were synthesized by a simple solvothermal process using ethanol as a solvent. The amount of NaOH and the synthesis temperature were the key parameters to control the phase and morphology of the as-synthesized products. The phase purity of the samples was determined t…
Abstract The band structure, the dielectric function, the reflectivity, the refractive index and the oscillator strength sum rule were calculated for pure In 2 O 3 and alloyed In 1.5 T 0.5 O 3 (where T represents Sc, Y, La and Ac) using density functional theory (DFT). The full potential linearized augmented plane wav…
Boron nitride nanotubes (BNNTs) are a structural analogue of carbon nanotubes (CNTs), with alternating B and N atoms which entirely substitute for C atoms in a graphitic-like sheet with almost no change in atomic spacing. BNNTs have generated considerable interest within the scientific community by virtue of their uni…
We demonstrate deep blue light-emitting diodes based on chemically synthesized Cd(1-x)Zn(x) S @ ZnS quantum dots (QDs). Composite films of poly-(N,N'-bis(4-butylphenyl)-N,N'-bis(phenyl)benzidine) (poly-TPD) and 4,4',N,N'-diphenylcarbazole (CBP) are employed for facilitated hole injection into Cd(1-x)Zn(x) S @ ZnS QDs…
Several publications suggest a potential association between the administration of Gadolinium-based contrast agents (GBCAs) and the onset of a rare but serious disease, Nephrogenic Systemic Fibrosis (NSF). The aim of this study was to determine the elimination time-course of Gadolinium (Gd) from skin tissue after appl…
Abstract In this work, growth of lightly crosslinked poly(2‐hydroxyethyl methacrylate) (PHEMA) brushes and subsequent capsule formation using Pickering emulsion interface‐initiated atom transfer radical polymerization (PEII‐ATRP) were investigated. Initiator‐immobilized silica nanoparticles (2.5 initiators/nm 2 ) asse…
Abstract BACKGROUND: Electrospinning of natural polymers offers a promising approach to generate nanofibers with a similar fibrillar structure to that of native extracellular matrix. In the present work, zein/silk fibroin (SF) blends were electrospun with formic acid as solvent to fabricate bicomponent nanofibrous sca…
We report on the observation of the natural isotopic spread of carbon from single-molecule surface-enhanced Raman spectroscopy (SM-SERS). By choosing a dye molecule with a very localized Raman-active vibration in a cyano bond (C[triple bond]N triple bond), we observe (in a SERS colloidal liquid) a small fraction of SM…
Abstract The synthesis of polymer brushes using surface‐adsorbed macro‐initiators is briefly reviewed, with particular emphasis being placed on the combination of atom transfer radical polymerisation with polyelectrolytic macro‐initiators. The latter contain 2‐bromoester initiator groups and can be readily prepared wi…
Au nanoparticles exhibited both negative and positive nonlinear absorptions with ground-state plasmon bleaching and free-carrier absorption that could be origins of the saturable and reverse-saturable optical properties. Au/Ag coreshells displayed only positive nonlinear absorption and reverse-saturable optical proper…
The effect of an applied mechanical stress on the tunneling conductance of a ferroelectric tunnel barrier between substrates and dissimilar electrodes is studied. Using a thermodynamic model and taking into account polarization charge screening in the electrodes and the near-surface inhomogeneous polarization distribu…
Pre-edge features in x-ray absorption spectroscopy contain key information about the lowest excited states and thus on the most interesting physical properties of the system. In transition-metal oxides they are particularly structured but extracting physical parameters by comparison with a calculation is not easy due…
Abstract An intelligent shape‐memory polymer was made through the synthesis of poly(lactic acid) macromonomers with furanyl groups and crosslinking with linkers with maleimidyl groups. The thermoreversible covalent bonds formed by the Diels–Alder reaction between these groups made this polymer recyclable (i.e., enviro…