Search results for "Optical transparency"

showing 2 items of 2 documents

Manipulation of optical solitons in Bose-Einstein condensates

2004

We propose a method to control the optical transparency of a Bose-Einstein condensate with working energy levels of the Lambda-type. The reported effects are essentially nonlinear and are considered in the framework of an exactly solvable model describing the interaction of light with a Lambda-type medium. We show how the complicated nonlinear interplay between fast and slow solitons in the $\Lambda$-type medium points to a possibility to create optical gates as well as to a possibility to store optical information.

PhysicsCondensed Matter::Quantum GasesQuantum PhysicsPhysics and Astronomy (miscellaneous)FOS: Physical sciencesOptical transparencyAtomic and Molecular Physics and Opticslaw.inventionNonlinear systemlawQuantum mechanicsQuantum Physics (quant-ph)Bose–Einstein condensateEnergy (signal processing)
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Zebrafish Embryos Allow Prediction of Nanoparticle Circulation Times in Mice and Facilitate Quantification of Nanoparticle–Cell Interactions

2020

The zebrafish embryo is a vertebrate well suited for visualizing nanoparticles at high resolution in live animals. Its optical transparency and genetic versatility allow noninvasive, real-time observations of vascular flow of nanoparticles and their interactions with cells throughout the body. As a consequence, this system enables the acquisition of quantitative data that are difficult to obtain in rodents. Until now, a few studies using the zebrafish model have only described semiquantitative results on key nanoparticle parameters. Here, a MACRO dedicated to automated quantitative methods is described for analyzing important parameters of nanoparticle behavior, such as circulation time and…

NANOCARRIERSEmbryo Nonmammalianmiceanimal structurescirculation timeCellNanoparticleLIPOSOMES02 engineering and technology010402 general chemistry01 natural sciencesSEQUENCEBiomaterialsMiceDELIVERYmedicineMedicine and Health SciencesAnimalsGeneral Materials ScienceZebrafishZebrafishbiologyChemistryMacrophagesEndothelial CellsOptical transparencyPLGAGeneral ChemistryTARGETING MACROPHAGES021001 nanoscience & nanotechnologybiology.organism_classificationzebrafishCANCER0104 chemical sciencesCell biologymacrophagesChemistrymedicine.anatomical_structureCell cultureembryonic structuresZebrafish embryoNanoparticlesCirculation timenanoparticlesNanocarriers0210 nano-technologyANTIBIOTICSBiotechnology
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