منابع مشابه
Cationic Gold Cationic Gold for Light and Electron Microscopy
BBlnternational Cationic Gold allows highly sensitive and discrete microscopical studies of anionic sites in and on cells and tissues. A simple one step incubation of sections with the diluted gold conjugate at the correct pH reveals subcellular sites having net negative charge. The charge distribution may be examined with clear definition at a range of magnifications in the electron microscope...
متن کاملTunable depolarized light scattering from gold and gold/silver nanorods.
We combine the fabrication of Au and Au/Ag core/shell nanorods (NRs), as well as experimental measurements of vis-NIR extinction, unpolarized, and cross-polarized light scattering spectra, with T-matrix and separation-of-variables simulations, to gain insight into the relation between the morphology/composition of nanoparticles and their isotropic and anisotropic optical responses. Using severa...
متن کاملLight splitting in nanoporous gold and silver.
Nanoporous gold and silver exhibit strong, omnidirectional broad-band absorption in the far-field. Even though they consist entirely of gold or silver atoms, these materials appear black and dull, in great contrast with the familiar luster of continuous gold and silver. The nature of these anomalous optical characteristics is revealed here by combining nanoscale electron energy loss spectroscop...
متن کاملAngle dependent light scattering by gold nanospheres
Gold nanocrystals exhibit unique optical properties in enhanced light absorption and scattering owing to their extremely large scattering/absorption crosssections and large electric field enhancements generated by localized surface plasmon resonance. In this work, the optical properties of gold nanospheres with diameters of 60 nm and 200 nm with remarkable uniformity in size were studied both ...
متن کاملLight-induced flocculation of gold nanoparticles.
Gold particles have been formed in water-in-oil microemulsions doped with a photodestructible surfactant. UV light-induced nanoparticle flocculation has been achieved after photolysis of the photosurfactant, leading to a reduction in the steric stabilization provided by the surfactant layer.
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ژورنال
عنوان ژورنال: Nature Nanotechnology
سال: 2009
ISSN: 1748-3387,1748-3395
DOI: 10.1038/nnano.2009.159