Materials Literature
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Efficient hydrolysis of native poly(3-hydroxybutyrate) (nPHB) granules in vitro by soluble PHB depolymerase of Rhodospirillum rubrum requires pretreatment of nPHB with an activator compound present in R. rubrum cells (J. M. Merrick and M. Doudoroff, J. Bacteriol. 88:60-71, 1964). Edman sequencing of the purified activ…
Thermal transitions and morphological changes in Cloisite organoclays were investigated by differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), Fourier transform infrared (FTIR) spectroscopy, and in situ simultaneous small-angle X-ray scattering (SAXS) and wide-angle X-ray diffraction (WAXD) over…
The adsorption of small molecules $({\mathrm{N}}_{2},$ ${\mathrm{O}}_{2},$ CO, ${\mathrm{CO}}_{2},$ ${\mathrm{H}}_{2}\mathrm{O},$ and HF) in model ropes of carbon nanotubes has been studied to determine the main parameters (stable adsorption sites, potential barriers, $\dots{})$ which define the ability of carbon nano…
We found a new method for the preparation of gold nanorod and nanosphere films. The nanoparticle films could be formed at the liquid-liquid interface between aqueous and hexane solutions and were almost monolayers. Surface-enhanced Raman scattering (SERS) spectra of rhodamine 6G under the nonresonance condition were m…
The dissolution and precipitation rates of rhombohedral carbonate minerals, such as CaCO 3 , ZnCO 3 , MnCO 3 , FeCO 3 , and MgCO 3 , affect the alkalinity and redox state of natural waters. In the current study, the rates and mechanisms of carbonate dissolution are investigated utilizing an atomic force microscope/flo…
The effect of Y 2 O 3 content on the flexure strength of melt‐grown Al 2 O 3 –ZrO 2 eutectics was studied in a temperature range of 25°–1427°C. The processing conditions were carefully controlled to obtain a constant microstructure independent of Y 2 O 3 content. The rod microstructure was made up of alternating bands…
Cu(OH) 2 nanowires have been successfully synthesized at the organic−aqueous interface by the interaction of the copper−bis(2-ethylhexyl) phosphate complex in the organic layer with NaOH in aqueous layer. The nanowires have an average length of 4 μm and are several nanometers in width. CuO nanowires and short wiskers…
Gephyrin is an essential and instructive molecule for the formation of inhibitory synapses. Gephyrin binds directly to the large cytoplasmic loop located between transmembrane helices three and four of the beta-subunit of the glycine receptor and to microtubules, thus promoting glycine receptor (GlyR) anchoring to the…
To prepare novel 2-methacryloyloxyethyl phosphorylcholine (MPC)-polymeric nanoparticle (MPC-PNP), water-soluble amphiphilic phospholipid polymer, poly [MPC-co-n-butyl methacrylate (BMA)-co-p-nitrophenyloxycarbonyl poly(ethylene glycol) methacrylate (MEONP) (PMBN)], which has active ester groups for bioconjugation on t…
Nanoparticles with a modified surface are prepared from nanodiamonds produced in Russia. The properties of modified nanodiamonds and their hydrosols and organosols are investigated by biophysicists with the aim of preparing nanoparticles with controlled properties for solving biological problems.
In situ tissue engineering using shear-stress preconditioning and adhesive biomolecules is a new approach to autologous tissue engineering. In the present study, novel tissue-engineering grafts (TEGs) were preconditioned within an in vitro pulsatile flow circuit, with and without the addition of fibronectin (FN), to e…
A structural experiment at the National Center for Asphalt Technology (NCAT) test track was warranted to advance mechanistic-empirically based (M-E) design and analysis. The objectives of the structural experiment at the NCAT test track are as follows: 1. Validate mechanistic pavement models. 2. Develop transfer funct…
The latest process for producing large quantities of single-walled carbon nanotubes (SWNTs) to emerge from the Rice University, dubbed HiPco, is living up to its promise. The current production rates approach 450 mg/h (or 10 g/day), and nanotubes typically have no more than 7 mol % of iron impurities. Second-generatio…
ZnSe nanoribbons have been synthesized using sputter-coated gold films as catalysts via metalorganic chemical vapor deposition on Si (100) substrates. Both x-ray and selected area electron diffractions determine that they have the zinc-blende structure. High-resolution transmission electron microscopic investigations…
The main theoretical aspects of detonation decomposition of powerful mixed explosives with a negative oxygen balance accompanied by the formation of nanodiamonds (ultrafine-dispersed diamonds, UDDs) are described. The basic UDD synthesis parameters are considered, and the expediency of using trotyl-hexogen alloys is s…
ABSTRACT Water solubility, hermal properties, tensile strength, percent elongation, oxygen permeability (OP), water‐vapor permeability (WVP) of cross‐linked glycerol plasticized whey protein isolate films were studied to determine the effect of cross‐linkers (glutaraldehyde, formaldehyde, dialdehyde starch, carbonyldi…
We study the influence of the cation size in the magnetic properties of ${(AA}^{\ensuremath{'}}{)}_{2}{\mathrm{FeReO}}_{6}$ ${(AA}^{\ensuremath{'}}={\mathrm{Ba}}_{2},{\mathrm{Ba}}_{1.5}{\mathrm{Sr}}_{0.5},{\mathrm{B}\mathrm{a}\mathrm{S}\mathrm{r},\mathrm{B}\mathrm{a}}_{0.5}{\mathrm{Sr}}_{1.5},{\mathrm{Sr}}_{2},{\mathr…
A potential complication associated with the realization of the optical-gain regime in semiconductor nanocrystals (NCs) arises from the competing phenomenon of excited-state absorption. Here, we apply an ultrafast transient absorption technique to study the competition between optical gain and excited-state (photoindu…
Charge transport in electron-beam irradiated insulators can be studied with various theoretical models based on different assumptions concerning generation, drift, trapping, and recombination of the charge carriers. In the past, two models have been of particular interest. A first macroscopic approach is based on the…
We introduce a general kinetic model for crystal dissolution that explicitly tracks all the various atoms in the crystal structure as part of the reaction mechanism. This model will be used in this and subsequent articles to develop a theory for the treatment of experimental and field water-rock kinetic data. The mode…