Materials Literature
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Low toxicity arginine cross-linked mercaptoundecanoic acid CdSe/CdS/ZnS quantum dots were synthesized for two-photon imaging of live cancer cells.
A microfluidic setup was used to process lyotropic cholesteric liquid crystalline mixtures of cellulose derivatives into spherical particles in the micrometre scale. By the method of co-flowing injection, monodisperse droplets of the liquid crystal, dispersed in an aqueous carrier fluid, were prepared. Polymerization…
In this study, we investigated the usability of new powdered additives in the paperboard industry. We manufactured the powdered additives from peanut husks and garlic stems by grinding. The chemical composition, particle size, particle size distribution, and particle shape were investigated to identify the basic prope…
A series of new sodium and mixed sodium/manganese clusters have been formed using p-tert-butylcalix[8]arene as a support. In all cases the calixarene adopts the pleated-loop conformation, and the resulting complexes show interesting self-assembly properties depending on the ligated solvent molecules around individual…
Three sandwich-type (phthalocyaninato)(porphyrinato) europium triple-decker complexes, namely Eu(2)(Pc)(2)(TClPP) (1), Eu(2)[Pc(β-OC(4)H(9))(8)](2)(TClPP) (2), and Eu(2)[Pc(β-OC(8)H(17))(8)](2)(TClPP) (3), have been designed, synthesized, and fabricated into nanotubes using nanoporous anodized aluminium oxide (AAO) me…
The reaction of the new ditopic thiol-phosphine compound HS(CH(2))(11)OOCC(6)H(4)PPh(2) (L) with an excess of dodecanethiol-protected gold nanoparticles gave the asymmetric gold complex [CH(3)(CH(2))(11)SAuPPh(2)C(6)H(4)COO(CH(2))(11)SH] (4), but no phosphine-protected gold nanoparticles were formed. However, by block…
We report the preparation of a novel photo-switchable polyelectrolyte brush. Under masked UV radiation, a patterned cationic/anionic binary brush surface can be easily fabricated, which was employed to form a dual-component protein pattern by electrostatic attractions.
Paclitaxel (PT) is a mitotic inhibitor used in cancer chemotherapy. Impregnation of PT into amorphous poly(DL-lactic acid) (PDLLA) in mixtures of high-pressure ethanol (EtOH) and carbon dioxide (CO2) at various compositions was investigated at 313 K and 20 MPa. It was demonstrated that the high pressure EtOH–CO2 mixtu…
Here we report for the first time a very simple, efficient and economical synthetic process for the preparation of mesoporous SiC nanoparticles with highly ordered mesoporous structure and monodispersed rectangular shaped rod like particles through a carbothermal reduction using uncalcined mesoporous silica as a templ…
It is anticipated that in the event of the failure of the gas circulator in a prismatic gas-cooled very high temperature gas reactor (VHTR), there will develop natural convection currents in the core with the helium coolant. It is of interest to know the amount of energy transported by the helium plumes impinging on m…
Bath Conditions Role in Promoting Corrosion Protection on Aluminum Alloy using Rare Earth Conversion Coatings, Brachetti-Sibaja, S. B., Domínguez-Crespo, M. A., Torres-Huerta, A. M., de la Cruz-Hernández, W., Onofre-Bustamante, E.
In analogy to atoms which are connected by bonds to form molecules and complexes, quantum dots (QDs) can be combined together to form larger ensembles for evoking a collective function. To this end, the development of a controlled self-assembly method for the construction of well-defined structures of the ensembles is…
Multiferroics, as the medium with more than one order parameter, have become a subject of great interest in the past decade. We present here a summary of the properties of a multiferroic, mostly a ferromagnet and a ferroelectric. They appear in three different forms; proper where the system is ferroelectric at high te…
Abstract The kinetics of the ethoxylation of fatty alcohols catalyzed by potassium hydroxide was studied to obtain the rate constants for modeling of the industrial process. Experimental data obtained in a lab‐scale semibatch autoclave reactor were used to evaluate kinetic and equilibrium parameters. The kinetic model…
Objectives: The effect of ceramics construction (press- able, machinable) and corrosion on flexural strength and micro-hardness was studied. Materials & Methods: Two types of ceramics were tested: IPS e-max Press and IPS e-max CAD. Forty samples were constructed and divided into 2 groups according to the type of ceram…
1,3-Bis[4,4′-(trimellitimido) phenoxy] propane (6) as a new monomer containing a trimethylene moiety was synthesized using a three-step reaction. First 1,3-bis[4,4′-nitrophenoxy] propane (3) was prepared by reaction of 4-nitrophenol 1 with 1,3-dibromo propane (2) in DMF. Then dinitro (3) was reduced to 1,3-bis[4,4′-am…
The magnetization and demagnetization processes in the 11 types of Dy-free Nd-Fe-B sintered magnets based on the NEOMAX-50 type magnets were investigated using the step method that is our original method of measurements and analyses of minor loops with step by step increased maximum applied fields. With the decrease i…
Time-resolved in situ x-ray diffraction measurements were used to study the room-temperature recrystallization kinetics of electroplated copper thin films with thicknesses between 400 and 1000 nm. The thinnest films exhibited limited recrystallization and subsequent growth of grains, while recrystallized grains in the…
Self-assembled single-phased stacked-pyramid zinc sulfide architectures were fabricated using a facile two-step thermal evaporation method. This novel architecture consists of a single phase hexagonal wurtzite structured stacked-pyramids architected on wire-like trunks. Direct evidence is presented to determine their…
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