Materials Literature
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Bioconjugation of a highly fluorescent water-soluble poly(para-phenyleneethynylene) (PPE) copolymer with ionic and non-ionic side chains is achieved by means of chain-end modification, providing a design principle for biosensor development.
Our objective was to evaluate the chemotherapeutic potential of oral poly lactide-co-glycolide (PLG, a synthetic polymer) nanoparticle encapsulated ethambutol in combination with PLG-nanoparticle encapsulated-(rifampicin + isoniazid + pyrazinamide) in a murine tuberculosis (TB) model. Our formulation was prepared by t…
The uniaxial alignments of the columnar superstructure of discotic metallomesogens, cobalt octa(n-dodecylthio)porphyrazine (CoS12), over the centimetre length scale have been achieved by spinning samples under a static magnetic field. The orientations of the columnar superstructures were investigated by small angle ne…
We report the design, synthesis and characterization of new benzothiadiazole- and pyrrole-based copolymers whose solubility and bandgap drastically change after thermal treatment of their thin films.
The new borazine derivative [B{CH(CH3)(SiCl3)}NH]3 (TSEB) was prepared by reacting Cl3Si–CH(CH3)–BCl2 (TSDE) with hexamethyldisilazane (hmds) at ambient conditions. TSEB was characterized by infrared spectroscopy (IR), nuclear magnetic resonance (NMR), and by mass spectrometry (MS). The specially designed molecule ser…
Equilibrium distributions of multicomponent systems minimize the free energyfunctional under the constraint of mass conservation of the components.However, since the free energy is not convex in general,usually one tries to characterize and to construct equilibrium distributionsas steady states of an adequate evolutio…
The chemical stability of the interface of lanthanum strontium iron cobalt oxides (LSCF) and lanthanum strontium magnesium gallium oxide (LSGM) was investigated. LSCF and LSGM do not coexist stably, and it makes solid solutions at higher temperatures by the fast interdiffusion of metal components. The bulk and grain b…
Type I collagen is a major component of the extracellular matrix as well as many tissue engineered models. To understand changes in collagen related models over time, it is important to evaluate collagen dynamics with noninvasive techniques. Fluorescence spectroscopy provides a method to noninvasively measure endogeno…
In this study, the electrical conductivity of undoped nanocrystalline thin films of cerium dioxide was studied by impedance spectroscopy in the temperature range from room temperature to in different atmospheres. Two types of films were studied: sample 1, a strongly oriented columnar film (thickness ); and sample 4, a…
An approach to the synthesis and the organization of magnetic bimetallic NiFe nanoparticles of controlled size and composition was developed using thermolysis of the cyano-bridged Ni2+/[Fe(CN)6]3− coordination polymer nanoparticles anchored within a hybrid mesostructured silica either under argon or under hydrogen atm…
The clusters Ti6O4(OPr)8(endo,exo-OOC–Norb)8, Zr6O4(OH)4(endo-OOC–Norb)12 and Zr6O4(OH)4(exo-OOC–Norb)12(BuOH) were prepared by the reaction of 5-norbornene-2-carboxylic acid (HOOC–Norb) with Ti(OPr)4 or Zr(OBu)4 and were characterized by X-ray structure analyses. Ring-opening metathesis polymerization was performed w…
Drastic changes in the structure of manganese clusters are observed from a minor modification of a phosphonate ligand.
The steam reforming of hydrocarbon fuels is a promising method for the production of hydrogen for portable electrical power sources. A suitable reactor for this application, however, must be compatible with temperatures above 800 degrees C to avoid coking of the catalytic structures during the reforming process. Here,…
Electrochemical impedance spectroscopy (EIS) is a common technique used in the assessment of the thickness of anodic oxide films formed on Al and its alloys. However, it is shown here that the resistance values obtained from EIS data are highly dependent on the solution in which the measurements are made, while the ca…
Reaction of the phenoxytriamine proligands 2,4-dimethyl-6-bis(2-(diethylamino)ethyl)aminomethlyphenol (HL1) and 2,4-di-tert-butyl-6-bis(2-(diethylamino)ethyl)aminomethylphenol (HL2) with Y[N(SiMe2H)2]3(THF)2 in pentane gave the momomeric complexes L1Y[N(SiMe2H)2]2 (1) and L2Y[N(SiMe2H)2]2 (2). X-Ray structural analysi…
An alloy coating has been developed for an AA2024-T3 substrate that can serve as barrier, sacrificial anode, and reservoir to supply soluble inhibitor ions to protect any defect sites. In this paper, the chemical throwing power of such an metallic coating under thin electrolyte films representative of atmospheric cond…
Preface Processing mechanics and structure formation during SPD Physical Fundamentals Of Formation And Stabilisation of Nanostructures In Metals And Multiphase Alloys Under Severe Plastic Deformation The Limit of Grain Refinement during ECAP Deformation Modelling of Grain Boundary Structure in Nanostructured Materials…
This paper reports the study of the static and dynamic properties of single-walled boron nitride nanotubes by using the molecular structural mechanics approach. The stiffness parameters of the boron–nitride bond are based on the DREIDING force field. The effects of tube diameter and chirality are investigated. The com…
Abstract The X‐ray structures of the novel spin crossover complex [Fe(pmea)(NCS) 2 ] with pmea = (bis[(2‐pyridyl)methyl]‐2‐(2‐pyridyl)ethylamin) were determined in its low‐spin (singlet, LS) and high‐spin state (quintet, HS) and compared with the optimized geometries produced by BP86 calculations. IR and Raman (λ ex =…
The microwave-assisted cationic ring-opening polymerization of a soy-based 2-oxazoline monomer (SoyOx) was investigated. Kinetic investigations of the SoyOx polymerization in both acetonitrile and without additional solvent revealed the formation of well-defined poly(2-oxazoline)s with fatty acid side chains in a livi…