Materials Literature
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ABSTRACT: : Edible chitosan coatings showed anti‐ Listeria monocytogenes effect evaluated by numeration and epifluorescence methods, imparting a strong localized functional effect at the food surface by active packaging. The use of film‐forming solution in culture liquid medium showed a known flocculant phenomenon com…
Ring-opening polymerization of various lactones and lactides initiated by lanthanum isopropoxide has been investigated. Analysis of molecular weights and molecular-weight distributions of the resulting polymers shows that the ring-opening process is a controlled reaction, which is initiated by a variable number of iso…
PURPOSE: Anti-HER2 immunoliposomes combine the tumor-targeting of certain anti-HER2 monoclonal antibodies (MAbs) with the pharmacokinetic and drug delivery capabilities of sterically stabilized liposomes. We previously showed that anti-HER2 immunoliposomes bind efficiently to and internalize in HER2-overexpressing cel…
Silver products have two key advantages: they are broad-spectrum antibiotics and are not yet associated with drug resistance. This article, the first in a two-part series, describes the main mechanism of action of this metallic element.
Chemistry Department, Matushri Virbaima Mahila Science and Home Science College, Rajkot-360 001, India<br> <em>Manuscr1pt rece1ved 12 September 2000, rev1sed 11 May 2001, accepted 20 August 2001</em> Homologous series 4-(4' -<em>n</em>-alkoxybenzoyloxy)-3-methyphenylazo-4" -chlorobenzenes have been synthesized and stu…
The discovery of a new allotropic form of carbon, extended nanometre-sized quasi-unidimensional tubular structures (carbon nanotubes), as well as broad prospects for the use of nanomaterials based on them initiated numerous studies in the search for, and design of, nanotubular structures based in other compounds. Some…
Precise structural information on the Mg1-xAlxB2 superconductors in the vicinity of x 0.5 is derived from high-resolution synchrotron X-ray powder diffraction measurements. We find that a hexagonal superstructure, accompanied by doubling of the c-axis, ordering of Mg and Al in alternating layers, and a shift of the B…
Förster-Dexter theory for excitation energy transfer is generalized for the account of short time nonequilibrium kinetics due to the nonstationary bath relaxation. The final rate expression is presented as a spectral overlap between the time dependent stimulated emission and the stationary absorption profiles, which a…
A recording performance comparison was conducted over a disc rotation speed range from 6.0 to 18.9 m/s using a dynamic tester between the disc with a superlattice-like structure (SLL) and conventional discs of Ge 1 Sb 2 Te 4 and Ge 1 Sb 4 Te 7 . The recording layer of the SLL disc consisted of alternating thin layers…
Ultrafast 100 femtosecond laser light was irradiated on an amorphous GdFeCo film under a DC magnetic field. Complete magnetization reversal and rewritable response were observed in a less than 1 picosecond time period. This experiment reveals the intrinsic capability of ultrafast high-speed rewitable storage under the…
The composition, the effect of processing and storage, and the overall quality of food lipids can be evaluated by gas chromatography (GC). GC analyses are carried out on non-polar or polar capillary columns, which separate the various lipid components according to their polarity and boiling points. However, there are…
A new scheme for the estimation of aggregate chemical potential and hardness is introduced and compared with the results of ab initio calculations for the aggregates as well as with the results obtained by employing various other combination schemes. Numerical results show that this new scheme provides better estimate…
A deep ultra-violet (UV) laser beam recorder (LBR) with 248 nm wavelength was developed to realize a high-density disk. The characteristics of the LBR are the wavelength and the multifunctional design. Among the possible laser wavelengths, 248 nm is the shortest wavelength applicable with Novolac photoresist, and the…
Neste trabalho, foram confeccionadas chapas aglomeradas, utilizando gesso como material cimentante e papel reciclável dissociado (jornal e offset) e partículas de madeira de pinus como reforços. Em todos os tratamentos, a razão madeira (ou fibras) para gesso foi mantida em 0,25 (base seca) e duas dosagens de água (w)…
The adsorption of nitrous oxide (N 2 O) on silicalite-1 has been investigated using a volumetric method. The adsorption isotherms are for the first time reported at temperatures in the range of 273 K to 398 K and at pressures up to 120 kPa. The Langmuir isotherm appropriately fits the equilibrium data. The thermodynam…
A new successful short time synthesis route for the preparation of FSM is developed using the leached natural aluminosilicate saponite, in combination with a low concentration of cetyltrimethylammoniumbromide [C 16 H 33 N + (CH 3 ) 3 Br - or CTMA] as surfactant. The leaching of the smectite increases with higher acid…
Formation of cobalt-encapsulating carbon nanotubes/nanoparticles from the decomposition products of Co(CO) 3 NO was investigated by carrying out the reaction in a specially arranged closed cell at different temperatures. Multiwalled carbon nanotubes along with carbon-encapsulated cobalt nanoparticles were generated vi…
We describe the recording characteristics of discs having Ge doped eutectic SbTe alloy recording films with various compositions. The recording characteristics are fairly sensitive on the film composition. For our recording condition, the Sb/Te ratio of around 4 and the Ge content of about 5 at.% were preferable to ob…
Laser-ablated Os and Ru atoms react with CO 2 molecules upon cocondensation in excess argon at 7 K and neon at 4 K. Besides the dominant neutral products [OMCO, O 2 MCO (M = Os, Ru), O 2 Os(CO) 2, and OCRu(O 2 )CO], anionic species [OMCO - (M = Os, Ru)] are also formed and identified through annealing, ultraviolet irr…
The interaction between supported Rh I (CO) 2 Cl species, prepared by metallo-organic chemical vapor deposition (MOCVD) of [Rh(CO) 2 Cl] 2 to hydroxylated γ-Al 2 O 3, and NO has been investigated using time-resolved, energy dispersive extended X-ray absorption fine structure (EDE)/mass spectrometry (MS) and diffuse re…