Materials Literature
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Scholz B. and Liebezeit G. 2012. Screening for competition effects and allelochemicals in benthic marine diatoms and cyanobacteria isolated from an intertidal flat (southern North Sea). Phycologia 51: 432–450. DOI: 10.2216/11-80.1Marine intertidal flats are colonized by diatom-dominated biofilms, whereas coccoid and f…
BACKGROUND: A novel brain drug delivery system using cationic bovine serum albumin (CBSA)-conjugated biodegradable polymersomes (CBSA-PO) was prepared, and its intracellular delivery mechanism and brain delivery kinetics were evaluated. METHODS AND RESULTS: Biodegradable poly(ethylene glycol)-poly(ɛ-caprolactone) (PEG…
Detailed investigations of the interaction of 1,2- diaminoethane with aluminium surfaces have been performed to understand the mechanisms of interphase formation in epoxy-amine/aluminium joints. In particular, it has been shown that both metal bond surface complexes (O-Al … N bonds) and hydrogen-bonded surface complex…
The geometric parameters of macrotetracyclic Mn(II), Fe(II), Co(II), Ni(II), Cu(II), and Zn(II) complexes with the (NNNN) coordination formed by the reaction of corresponding hexacyanoferrates(II) with thiocarbamoylmethanamide H 2 N-C(=S)-C(=O)-NH 2 and formaldehyde in gelatin-immobilized matrices have been calculated…
Nanofibrous Bacterial cellulose nanocrystals (BCNs)-embedded silk fibroin were successfully fabricated using electrospinning. The morphology, structure and mechanical properties of the silk fibroin nanofibers were investigated at various BCNs concentrations from 0 to 7 wt%. SEM, TEM and XRD analyses were conducted to…
Abstract In this study we investigate the influence of various magnitudes of backpressure (0 to 200 MPa) during large scale (cross‐section 50×50 mm 2 ) equal‐channel angular pressing (ECAP). We focus on the homogeneity of the induced strain and, within this context, on the homogeneity of the resulting mechanical prope…
Five cobalt(III) triphenylcorroles with different electron-withdrawing or electrondonating substituents and an axially bound triphenylphosphine ligand were synthesized and characterized by spectroscopic and electrochemical techniques. The investigated compounds are represented as (4-XPh) 3 CorCo(PPh 3 ), where Ph 3 Co…
This paper describes the electric field driven LC (ELC) resonator structure using Meander lines in C-band. The proposed ELC driven metamaterial structure is simulated using Ansoft HFSS which shows an absorption peak at 6.26 GHz with absorbance of 99.1% and S11 of -20.55 dB. The reduction of frequency at which absorpti…
Perovskite DyMn0.33Fe0.67O3 experiences a paramagnetism-antiferromagnetism transition at 450 K and spin reorientation at 290 K. Magnetodielectric properties were studied around the spin reorientation transition. Both giant positive and giant negative magnetodielectric coupling (MDC) were observed near room temperature…
The five possible non-peripherally substituted zinc(II) phthalocyanines with different molecular symmetries (Pc1–Pc5) were synthesized from statistical condensation of the phthalonitrile derivatives (A and B). 2-[2-(2-ethoxyethoxy)ethoxy]-1-[2-((2-ethoxyethoxy)-ethoxy)ethoxymethyl]ethyloxy and 2′-[(tert-butoxycarbonyl…
We evaluated the valence band structures of 10-nm-thick ferromagnetic Fe4N epitaxial films on SrTiO3(001) substrates at room temperature using spin-resolved photoelectron spectroscopy. Negative spin polarization is confirmed at the Fermi level. The experimentally obtained photoelectron spectra are well explained by fi…
Natural Brazilian clay-based catalysts were prepared, characterised, and their catalytic activity was assessed in esterification reactions. The natural clays were acid activated as received, without any previous treatment. Both natural and acid-activated clays were characterised by XRD, NH3-TPD, thermodesorption of n-…
The structural position of Ti 4+ ions in TiO 2 -Na 2 O-SiO 2 glasses of x TiO 2 · (100 − x ) [2Na 2 O · 3SiO 2 ] (0 ≤ x ≤ 30) composition has been studied with Raman spectroscopy. The analysis of spectra recorded has demonstrated that Ti 4+ ions in the studied glasses can be in two structural groups—TiO 5 and TiO 6 .…
Periodontitis is a complex disease and bacterial infection is one of the most common factors involved in this disease. Current strategies for the local delivery of antibiotics do not allow a complete clearance of bacteria filling dentinal tubules and this limits their therapeutic efficacy. Therefore, there is a strong…
BACKGROUND: Gefitinib is a promising agent for the treatment of non-small cell lung cancer. The purpose of this study was to develop a novel liposomal formulation for gefitinib (L-GEF) to improve its therapeutic index. MATERIALS AND METHODS: Several L-GEF formulations were prepared and characterized for their physical…
The corrosion behavior of carbon steel in 0.5 M HCl solution in the absence and presence of new five Schiff bases of indole derivatives was investigated using electrochemical impedance spectroscopy (EIS), electrochemical frequency modulation (EFM) and potentiodynamic polarization techniques. All the experimental resul…
Effects of nano-copper(II) oxide (nano-CuO) and nanomagnesium oxide (nano-MgO) particles on activated sludge endogenous respiration (aerobic digestion), biochemical oxygen demand (BOD) biodegradation, and nitrification were investigated through respiration rate measurement. For comparison, the effects of Cu(II) and Mg…
The frequency dispersion of the electrical conductivity of silver/polyacrylonitrile nanocomposite films is studied at various temperatures and AgNO3 contents in an initial mixture. The frequency dependences of the nanocomposites in the range 103–106 Hz are found to be well described by power law f 0.8. A charge transf…
Liquid crystals (LCs) are synthetic and biological viscoelastic anisotropic soft matter materials that have a combination of fluidity of liquids and anisotropy of solids and find use in optical devices, sensor/actuators, lubrication and super-fibres. Mesogens are frequently mixed with colloidal and nanoparticles (NPs)…
PURPOSE: A lipid-based, nanomicelle-loaded docetaxel (M-DOC) was designed and characterized. Optical imaging was employed to evaluate the pharmacokinetics and antitumor efficacy of docetaxel in vivo. MATERIALS AND METHODS: The M-DOC was prepared using the emulsion-diffusion method. Transmission electron microscopy and…