in this work, zno/sio2 nanoparticles were prepared using sol-gel method, and platinum particles were loaded on zno/sio2 nanoparticles by photoreductive method. samples were characterized by x-ray diffraction (xrd), scanning electron microscopy (sem) and fourier transform infrared spectroscopy (ft-ir). the xrd patterns showed that the zinc oxide samples have a wurtzite structure (hexagonal phase...

We have developed quantum dot probes for detecting trypsin (Try) and trypsin inhibitor (TI) in aqueous solutions through fluorescence resonance energy transfer (FRET). Green-fluorescent CdTe quantum dots (QDs) served as the energy donors and rhodamine isothiocyanate (RITC) conjugated to bovine serum albumin (BSA-RITC) was the acceptor. By simply mixing the two fluorophores, FRET occurred when B...

In the text, a new fluorescent probe based on rhodamine spirolactam ring was designed and synthesized. Rhodamine-like derivatives have not only good response speed luminous performance, but also special switch type structure, which can specifically recognize responsive metal ions. paper, Rh-TEF, 6G derivative of rhodamine, synthesized by condensation reaction, successfully used for solutions sa...

The fabrication of metal oxide nanofibers using (titanium (IV) isopropoxide) and (tin tert-butoxide) weight ratio 1:1 precursor in presence poly (vinyl pyrrolidone) as a binder well-known electrospinning technique is reported. average diameter TiO2, SnO2, composite TiO2-SnO2 were found to be the range 75–110 nm. characterized thermogravimetric analysis (TGA) understand polymer evaporation tempe...

tungsten trioxide nanoparticles with two different sizes (average particle sizes about 50 and 80 nm) were prepared by the spray pyrolysis method. photo degradation of congo red (azo dye) showed that photo catalytic property of the as-prepared wo3 nanoparticles with average size about 80 nm is higher than the sample with average size about 50 nm. photo degradation of rhodamine b (cationic triary...

graphene, a new member of the carbon family, was used as an adsorbent due to its exceptional capability to remove rhodamine b (rb) and malachite green (mg), two organic dyes, from aqueous solutions. adsorption kinetics of rb and mg onto graphene and adsorption capacity of the adsorbent were studied. also the effects of parameters, including ph, contact time, temperature, and adsorbent dosage we...

Rhodamine 123 is a lipophilic cationic compound that is selectively taken up by cancer cell mitochondria. This compound is toxic to epithelial cancer cells in vitro and displays significant anticancer activity in vivo. However, the mechanism of action of rhodamine 123 in intact, actively metabolizing cell preparations is unknown. We have used 31P- and 13C-nuclear magnetic resonance spectroscopy...

We report a substitution of 9-phenylanthracenyl group into rhodamine derivatives that can induce the J-aggregate formation of rhodamine moieties in the aqueous solution upon the addition of a halide ion. From X-ray crystallographic analysis, the dramatic red-shift in the absorption band (i.e. app. 100 nm) originates from the cooperative slipped-stacking of rhodamine and anthracene molecules.

We compared the kinetics and thermodynamics of rhodamine phalloidin binding to actin purified from rabbit skeletal muscle, Acanthamoeba castellanii, and Saccharomyces cerevisiae in 50 mM KCl, 1 mM MgCl2, and pH 7.0 buffer at 22 degrees C. Filaments of S. cerevisiae actin bind rhodamine phalloidin more weakly than Acanthamoeba and rabbit skeletal muscle actin filaments due to a more rapid dissoc...

We consider the effect of the underlying logical structure on the asymptotic behavior of space-time diagrams of elementary Boolean cellular automata by focussing on the important case of Rule 110 and its counterparts under various many-valued logics. In particular we show that for a (continuous) probabilistic logic the corresponding rule, dubbed PCA 110, appears to have space-time diagrams with...