ANYL 265 |
| Liquid crystals are unique molecular materials because they can be oriented and positioned on a surface based on their molecular structure and surface chemistry. This presentation describes the synthesis of quantum dots coated with ligands which form a liquid crystalline phase on the surface of luminescent CdSe/ZnS quantum dots. This synthesis procedure results in quantum dots which are highly stable in biological solutions. Labeling the ligands with fluorescent acceptors results in fluorescence resonance energy transfer (FRET) between the quantum dots and the molecular acceptors. FRET measurements are then used to study the dynamic behavior of liquid crystals on the surface of the quantum dots in response to pH and ionic strength changes in biological samples. |
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General Posters
7:00 PM-9:00 PM, Sunday, August 19, 2007 BCEC -- Exhibit Hall - B2, Poster
Sci-Mix
Division of Analytical Chemistry |