Tuning Dichroic Plasmon Resonance Modes of Gold Nanoparticles in Optical Thin Films
A simple method is presented to tune the gold Surface Plasmon Resonance (SPR) modes by growing anisotropic nanoparticles into transparent SiO2 thin films prepared by GLADPVD. In this type of composite film, the anisotropy of the gold nanoparticles, proved by different...
Characterization of a Paramagnetic, Mononuclear Pt (II)-Alkyl Complex Intermediate in Carbon-Halogen Bond Coupling Reaction
Addition of Br2 or I2 to 14-electron, cationic Pt(II)-alkyl complexes led to the formation of the corresponding carbon-halogen Pt(II) coupling products. Low temperature experiments with Br2 allowed us to isolate and characterize crystallographically a very unusual...
Evidence of Upconversion Luminescence Contribution to the Improved Photoactivity of Erbium doped TiO2 System
Er(3+)-TiO(2) synthesized by surfactant free hydrothermal method exhibit good photoactivities under sun-like excitation for the degradation of phenol. The presence of Er(3+) does not affect significantly to the structural and morphological features of the TiO(2). The...
The CopRS Two-Component System Is Responsible for Resistance to Copper in the Cyanobacterium Synechocystis sp. PCC 6803
Photosynthetic organisms need copper for cytochrome oxidase and for plastocyanin in the fundamental processes of respiration and photosynthesis. However, excess of free copper is detrimental inside the cells and therefore organisms have developed homeostatic...