Dihydroxybenzaldehyde-based Schiff base ligands (L1–L3) and their ruthenium(II) complexes were synthesized and characterized by elemental analysis, 1H-, 13Cand 31P-NMR, UV–Vis, IR and mass spectroscopy. The DNA binding of the ruthenium(II) complexes was investigated by UV–Vis absorption spectroscopy. The experiments revealed that all the compounds could bind to DNA through electrostatic interac...

For the first time an azo functionality was covalently introduced into a MOF by post-synthetic modification. The reaction of Cr-MIL-101-NH(2) with p-phenylazobenzoylchloride (1) and 4-(phenylazo)phenylisocyanate (2) as the reactants led to the compounds Cr-MIL-101_amide and Cr-MIL-101_urea, with the azo groups protruding into the mesoporous cages. XRPD and N(2) sorption measurements confirm the...

Contamination of groundwater, surface water and soil by explosives has occurred at military sites throughout the world as a result of manufacture of explosive compounds, assembly of munitions, and deployment of explosives containing devices. Due to the adverse effects of explosives on humans and other natural receptors, a low cost means of decontaminating these areas of contamination is needed....

the key to many studies into the efficacy and impact of ingested and topical drugs affecting pigmentation. Spectral reflectance measurements offer an objective way to measure skin throughout dermatological studies, providing quantitative data on color and absorbance of skin. Ocean Optics modular products offer the flexibility to design a measurement system for a wide variety of dermal studies, ...

Rapid spontaneous alloying between Pd nanocubes and spherical or triangular Ag nanoparticles was studied in an aqueous solution at ambient temperature using transmission electron microscopy (TEM), TEM-energy-dispersed X-ray spectroscopy (EDS), XRD, and UV-Vis spectroscopy of product particles. The results show that alloying occurs between Ag particles and Pd cubes and finishes within a few seco...

Nano-sized ZnO particles of specific morphology were synthesized using the plant leaf extracts of Aloe vera. The structures, morphology, optical properties, surface area and thermal behavior of these fabricated ZnO nanoparticles were characterized by X-ray Diffraction (XRD), Scanning Electron Microscopy (SEM), Ultravioletvisible spectroscopy (UV-vis), Photoluminescence (PL)/flourescence spectro...

Highly porous organic–inorganic hybrids have been prepared from 3-(2,4-dinitrophenylamino)propyltriethoxysilane (DNPTES) and tetraethylorthosilicate (TEOS) by sol-gel method. The hybrids were characterized by FT-IR spectroscopy, UV–vis spectroscopy and elemental analysis, and their pore characteristics were studied by nitrogen sorption porosimetry. The applicability of the hybrids as adsorbent ...

We use sum-frequency generation spectroscopy (SFG) in the infrared 2800–3000 cm−1 spectral range and UV–vis spectroscopy (transmission) in the 450–650 nm spectral range in order to characterize vibrational and electronic properties of various interfaces composed of organic monolayers adsorbed on gold nanoparticles (AuNPs) with 19 nm average diameter. SFG signal is observed for AuNPs films depos...

Thiourea single crystals have been grown from aqueous solution by slow cooling technique. The stability of the saturated solutions of different pH values has been assessed by measuring the metastable zone width (MSZW) by a nucleation method. MSZW has been enhanced by the influence of pH of thiourea solution. The growth rate of the thiourea crystal along the c-direction [001] was found faster fo...