Materials Literature
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This study analyzed the properties of poly(3,4-ethylenedioxythiophene):poly(styrene sulfonic acid) (PEDOT:PSS) thin-films prepared by spin-coating solutions made with the polar solvents methanol, acetone, or N,N-dimethylformamide (DMF). A characteristic analysis was carried out for poly(3-hexylthiophene) (P3HT) and [6…
Addition of orthophosphate has been commonly employed to suppress lead levels in drinking water. Its detailed mechanism and time required for it to become effective, however, have not been fully elucidated. In this study, we investigated the mechanistic role of orthophosphate as a corrosion inhibitor in controlling le…
The aim of this paper is to measure the induction period for gypsum nucleation when 2-phosphonobutane-1,2,4- tricarboxylic acid (also PBTC, commercial name Bayhibit) is added to a solution as an additive. A well-assessed laser light scattering technique previously devised for the measurement of induction times has bee…
We present a straightforward method to prepare amphiphilic graft copolymers consisting of hydrophobic poly(3-hydroxyalkanoates) (PHAs) backbone and hydrophilic α-amino-ω-methoxy poly(oxyethylene-co-oxypropylene) (Jeffamine®) units. Poly(3-hydroxyoctanoate)-co-(3-hydroxyundecenoate) (PHOU) was first methanolyzed to obt…
It has been shown by electrospray ionization-ion-trap mass spectrometry that B(12)I(12)(2-) converts to an intact B(12) cluster as a result of successive stripping of single iodine radicals or ions. Herein, the structure and stability of all intermediate B(12)I(n)(-) species (n=11 to 1) determined by means of first-pr…
Abstract The discovery of unusual nanorod precipitates in bismuth ferrite doped with Nd and Ti is reported. The atomic structure and chemistry of the nanorods are determined using a combination of high angle annular dark field imaging, electron energy loss spectroscopy, and density functional calculations. It is found…
The design of stimuli-responsive polymer assemblies for the controlled release of bioactive molecules has raised considerable interest these two last decades. Herein, we report the design of mechanically responsive drug-releasing films made of polyelectrolyte multilayers. A layer-by-layer (LbL) reservoir containing bi…
Abstract Li 3 SbS 3 was synthesized by solid‐state reaction of stoichiometric amounts of Li 2 S and Sb 2 S 3 in the ratio 3:1. The product is air and moisture sensitive. The crystal structure was determined from single crystals at room temperature. Pale grey Li 3 SbS 3 crystallizes in the orthorhombic space group Pna…
The interaction of electric field with charged domain walls in ferroelectrics is theoretically addressed. A general expression for the force acting per unit area of a charged domain wall carrying free charge is derived. It is shown that, in proper ferroelectrics, the free charge carried by the wall is dependent on the…
Two modified layered double hydroxides (HT) have been synthesized by intercalating both sodium dodecylsulfate (SDS) and sodium dodecylbenzenesulfonate (SDBS) surfactants into Mg-Al layered double hydroxides using the calcination–rehydratation method. The prepared materials HT-SDS and HT-SDBS were characterized by X-ra…
The metal-insulator transition and the underlying electronic and orbital structure in e(g)(1) quantum wells based on NdNiO3 were investigated by dc transport and resonant soft x-ray absorption spectroscopy. By comparing quantum wells of the same dimension but with two different confinement structures, we explicitly de…
Abstract Understanding the various size effects of CuInS 2 quantum dots is very important for improving the performance of quantum‐dot‐sensitized solar cells. In this work, CuInS 2 quantum dots with sizes ranging from 2 to 8 nm have been synthesized by a simple thermolysis method and a ligand‐exchange process. The qua…
We present a cost-effective and fast fabrication of nanofibrous ZnO layers by the magnetron sputtering method. The as-prepared layers were characterized by scanning electron microscopy, energy dispersive X-ray spectrometry, X-ray diffraction, Raman spectroscopy, photoluminescence, and optical studies. The nanofibrous…
Eine molekulare Sonde: Glutathion-beschichtete Nahinfrarot-emittierende radioaktive Goldnanopartikel wurden synthetisiert, die das pharmakokinetische Verhalten niedermolekularer Kontrastmittel zeigen. Die Nanopartikel haben kurze Verteilungs- und lange Ausscheidungshalbwertszeiten und könnten damit in der Einzelphoton…
Alternating isotropic layers have been widely used in the design of acoustic cloaks to achieve the necessary anisotropy required by coordinate-transformation techniques. In this paper, this concept is expanded to plasmonic-type acoustic cloaking using a bilaminate shell consisting of two isotropic layers with uniform…
The sorption of water in polylactide (PLA) was measured at various vapor activities (0–0.85) and temperatures using a number of experimental techniques, including quartz spring microbalance (QSM), quartz crystal microbalance (QCM), and in situ time-resolved Fourier transform infrared-attenuated total reflectance (FTIR…
A facile approach for modification of solid substrates with multidentate imidazole ligands was developed for immobilization of high densities of quantum dots (QDs) that were capped with hydrophilic thiol-based ligands, and for immobilization of noble metal nanoparticles. Imidazole polymer was synthesized using poly(ac…
Reported herein is a hitherto unknown family of diiron(III)-μ-hydroxo bisporphyrins in which two different spin states of Fe are stabilized in a single molecular framework, although both cores have identical molecular structures. Protonation of the oxo-bridged dimer (2) by using strong Brønsted acids, such as HI, HBF(…
The effects of processing parameters on phase formation of hydrothermally synthesized bismuth ferrites were investigated. Bi 25 FeO 40 , BiFeO 3 , and Bi 2 Fe 4 O 9 with different morphologies and grain size were synthesized by dissolving bismuth nitrate and iron nitrate in KOH solution at reaction time ranging from 3…
We report on the development of UV range photodetector based on molybdenum disulfide nanocrystals (MoS₂-NCs). The inorganic MoS₂-NCs are produced by pulsed laser ablation technique in deionized water and the colloidal MoS₂-NCs are characterized by transmission electron microscopy, Raman spectroscopy, X-ray diffraction…