|
LSPR In Gold Nanoparticles
LSPR may refer to: *Surface plasmon resonance or also called localized surface plasmon resonance *Latvian Soviet Socialist Republic (in Latvian: ''Latvijas Sociālistiskā Padomju Republika'') *Lake Superior Performance Rally, a 2013 Rally America season#Race calendar and results, rally race held in Michigan {{Disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Surface Plasmon Resonance
Surface plasmon resonance (SPR) is the resonant oscillation of conduction electrons at the interface between negative and positive permittivity material in a particle stimulated by incident light. SPR is the basis of many standard tools for measuring adsorption of material onto planar metal (typically gold or silver) surfaces or onto the surface of metal nanoparticles. It is the fundamental principle behind many color-based biosensor applications and lab-on-a-chip sensors. It should be stressed that SPR is not a resonance on the planar surface and it is a polariton or surface-wave like phenomenon. Explanation The surface plasmon polariton is a non-radiative electromagnetic surface wave that propagates in a direction parallel to the negative permittivity/dielectric material interface. Since the wave is on the boundary of the conductor and the external medium (air, water or vacuum for example), these oscillations are very sensitive to any change of this boundary, such as the adso ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Localized Surface Plasmon
A localized surface plasmon (LSP) is the result of the confinement of a surface plasmon in a nanoparticle of size comparable to or smaller than the wavelength of light used to excite the plasmon. When a small spherical metallic nanoparticle is irradiated by light, the oscillating electric field causes the conduction electrons to oscillate coherently. When the electron cloud is displaced relative to its original position, a restoring force arises from Coulombic attraction between electrons and nuclei. This force causes the electron cloud to oscillate. The oscillation frequency is determined by the density of electrons, the effective electron mass, and the size and shape of the charge distribution. The LSP has two important effects: electric fields near the particle's surface are greatly enhanced and the particle's optical absorption has a maximum at the plasmon resonant frequency. Surface plasmon resonance can also be tuned based on the shape of the nanoparticle. The plasmon frequen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Latvian Soviet Socialist Republic
The Latvian Soviet Socialist Republic (Latvian SSR), also known as Soviet Latvia or simply Latvia, was a federated republic within the Soviet Union, and formally one of its 16 (later 15) constituent republics. The Latvian Soviet Socialist Republic was in existence for 51 years, from August 5, 1940 to September, 6 1991. The Soviet annexation of Latvia took place in August of 1939 to the agreed terms of the Molotov–Ribbentrop Pact (Nazi-Soviet Nonaggression Pact). In 1939 Latvia was forced to grant military bases on its soil to the Soviet Union, and in 1940 the Soviet Red Army moved into Latvia, which was effectively incorporated into the Soviet Union. The territory changed hands during World War II with Nazi Germany occupying a large portion of Latvian territory from 1941 to 1944. Soviet instability and the dissolution of the Soviet Union provided the impetus for Latvia to regain independence. Creation, 1940 On 24 September 1939, the U ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Superior Performance Rally
A lake is an area filled with water, localized in a basin, surrounded by land, and distinct from any river or other outlet that serves to feed or drain the lake. Lakes lie on land and are not part of the ocean, although, like the much larger oceans, they do form part of the Earth's water cycle. Lakes are distinct from lagoons, which are generally coastal parts of the ocean. Lakes are typically larger and deeper than ponds, which also lie on land, though there are no official or scientific definitions. Lakes can be contrasted with rivers or streams, which usually flow in a channel on land. Most lakes are fed and drained by rivers and streams. Natural lakes are generally found in mountainous areas, rift zones, and areas with ongoing glaciation. Other lakes are found in endorheic basins or along the courses of mature rivers, where a river channel has widened into a basin. Some parts of the world have many lakes formed by the chaotic drainage patterns left over from the last ice ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.jpg "Click for more on -> Surface Plasmon Resonance")
