CHED 273 |
| Chemical sensors have numerous advantages over methods that currently dominate investigations in chemical, biotechnological, pharmaceutical, environmental, and food industries. Specifically, they require little to no sample preparation, are low in cost and easily used, and allow continuous and rapid real-time monitoring. Luminescence-based sensors have additional advantages including high sensitivity and selectivity, ease of miniaturization and remote sensing, and non-consumptive analyte measurement. Hindering the performance of intensity-based sensors, however, are signal changes that result from fluctuations in the light source. The potential of quantum dots to provide an internal reference that allows correction for this source of error is discussed, and specific results are presented for polymer-supported, luminescence-based oxygen sensors with a ruthenium complex as the sensing molecule and cadmium selenide quantum dots as the internal reference. |
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Undergraduate Research Poster Session: Analytical Chemistry
11:00 AM-1:00 PM, Monday, April 7, 2008 Morial Convention Center -- Hall A, Poster
Division of Chemical Education |