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Image: CdSeqdots

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Description: Cadmium selenium Quantum Dots (QDs) are metal nanoparticles that fluoresce in a variety of colors determined by their size. QDs are solid state structures made of semiconductors or metals that confine a countable, small number of electrons into a small space. The confinement of electrons is achieved by the placement of some insulating material(s) around a central, well conducted region. Coupling QDs with antibodies can be used to make spectrally multiplexed immunoassays that test for a number of microbial contaminants using a single test.
Title: CdSeqdots
Credit: http://mix.msfc.nasa.gov/abstracts.php?p=3906
Author: NASA
Usage Terms: Public domain
License: Public domain
Attribution Required?: No

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