Materials Literature
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Zinc oxide nanoparticles (ZnO NPs) induce morphological transformation of Escherichia coli from its native rod‐shape of ≈2–4 μm to filamentous cells of 20–40 μm in length. The transient response can only be observed at up to 3.5 h proliferation, beyond which the cytotoxic effect is neutralized and the rod‐shape is res…
A new sulfated chitosan superplasticizer ( SCS ) was synthesized by sulfation chitosan. The chemical structure and molecular weight of SCS were characterized by FTIR and gel permeation chromatography (GPC). The application performances of SCS in cement paste and concrete were investigated in the views of fluidity, slu…
We study the interplay of $3d$ and $4f$ electrons in the iron pnictides CeFe${}_{1\ensuremath{-}x}$Co${}_{x}$AsO and GdFe${}_{1\ensuremath{-}y}$Co${}_{y}$AsO, which correspond to two very different cases of $4f$-magnetic moment. Both CeFeAsO and GdFeAsO undergo a spin-density-wave (SDW) transition associated with Fe $…
In this paper, the transmission of the electromagnetic waves in the waveguide filled with the anisotropic epsilon-near-zero (ENZ) metamaterials with dielectric cylindrical defects embedded is investigated. The anisotropy is taken into consideration, and the sandwich structure is put forward to achieve total transmissi…
Influence of combined size confinement effect and effect of local laser heating \n on the first-order Raman spectrum of silicon nanocrystals embedded into SiOx matrix has \n been studied. Increase of the local temperature of Si nanocrystals caused by laser \n illumination with the power density up to 10 mW…
Two commercial zirconia powders with 3 mol% of yttria ( TZ 3 YE and TZ 3 YS , labeled as ZE and ZS , respectively) supplied by Tosoh (Japan) were used for this study. Maximum colloidal stability for ZE was achieved by dispersing the powders in a mixture of water/ethanol of 90:10 (wt/wt) using a sonication probe. The r…
This paper examines the mechanical properties of metal matrix composites based on groundnut shell fiber. Fiber-reinforced polymer composites have played a dominant role for a long time in a variety of applications for their high specific strength and modulus. The fiber which serves as a reinforcement in reinforced pla…
Gold nanorods are widely known for their photothermal properties to treat solid tumors. Our work demonstrates the unrealized capacity to image these reagents in liquid at high resolution using Transmission Electron Microscopy (TEM). Here we perform the first atomic measurements of functionalized nanorods in solution w…
When 1-methyl-2-pyrrolidone molecule (1m2p) interacts with the T[Ni(CN)4] layer, its carbonyl π bond homolytically disrupts and forms a coordination bond at the axial positions for the metal T, and hybrid inorganic-organic solids of formula unit T(L)2[Ni(CN)4], with T = Mn, Co, Ni, are obtained. The formed solids crys…
Uniform coating of nanometer‐scale BaTiO 3 – Dy 2 O 3 – SiO 2 layers on spherical Ni particles are achieved by controlled hydrolysis of tetrabutyl titanate ( TBT ), hydrothermal reaction with Ba ( OH ) 2 , and co‐precipitation of tetraethylorthosilicate ( TEOS ) and Dy ( NO 3 ) 3 . The composition of the coating layer…
Thioglycolic acid capped cadmium sulfide (CdS/T) quantum dots have been synthesized using wet chemistry and their optical behavior has been investigated using UV-visible absorption and fluorescence spectroscopy. The role of the capping agent, sulfide source concentration, pH and temperature has been studied and discus…
Emulsions stabilized by clay particles and sorbitan monooleate (Span 80) were investigated, and an abnormal phase inversion was observed by increasing the concentration of clay particles in the aqueous phase. At a fixed concentration of Span 80 in the oil phase, the emulsions were oil-in-water (o/w) when the concentra…
Quantitative Kernspintomographie: Ein paramagnetisches Gadolinium-beladenes Liposom für MRI-Studien der Aktivität der Matrixmetalloproteinase-2 (MMP-2) wird beschrieben. Die Messung beruht auf dem Verhältnis R2p/R1p zwischen den transversalen und longitudinalen paramagnetischen Beiträgen der Relaxationsgeschwindigkeit…
Density functional calculations are presented for a (4$\ifmmode\times\else\texttimes\fi{}$4) reconstruction of the polar ZnO(0001) surface which is, in agreement with previous knowledge, characterized by one ZnO double-layer high triangular islands or pits. Its structure and electronic properties are compared to those…
The present investigation searched for new boron nitride (BN) polymorphs by means of first-principles simulations. The ab initio random structure searching strategy was implemented. The electronic and mechanical properties and equation of states of three new metastable BN crystal forms with equilibrium energies close…
Abstract Electrospun fibrous membranes have been used frequently in biomedical applications, but their simultaneous use as antibacterial agents and in the prevention of cell adhesion on repaired tendons after injury has not been investigated. In this study, silver‐nanoparticle (SN)‐loaded poly( L ‐lactide) (PLLA) fibr…
This paper presents a new approach to nanosphere lithography, which overcomes undesirable manufacturing issues such as complex tilted-rotary evaporation and ion beam milling. A key innovation in this process is the use of non-conductive edge strips placed on top of the samples prior to metal removal. Such elements hel…
Pure yttrium aluminum garnet ( YAG ) phosphor doped with Eu 2+ has been successfully synthesized by a facile sol–gel method. The use of hydrogen iodide aimed to get Eu 2+ ions, confirmed by X ‐ray absorption near‐edge structure ( XANES ) analysis. Nearly spherical and well dispersed particles were synthesized. The pro…
A new class of highly stable ferroelectric material, that is, a mesostructured SrTiO(3)/BaTiO(3) composite film, obtained by a surfactant-templated sol-gel method is reported. Due to the concave surface geometry and abundant hetero-interface between SrTiO(3) (ST) and BaTiO(3) (BT) phases, a large number of strains can…
OBJECTIVE: To assess the influence of fluoride concentration on the corrosion behavior of nickel titanium (NiTi) superelastic wire and to compare the corrosion resistance of NiTi with that of beta titanium alloy in physiological solution with and without addition of fluoride. MATERIALS AND METHODS: NiTi corrosion resi…