FIGURE 3.3. Top: Various colors of fluorescent proteins now available.


Top: Various colors of fluorescent proteins now available. These proteins can be expressed in almost any cell and have provided in vivo spectroscopic markers for following the production, degradation, localization, and movement of many different proteins.

SOURCE: Reprinted by permission of Federation of the European Biochemical Societies from Tsien, R.Y. 2005. Building and breeding molecules to spy on cells and tumors. FEBS Letters 579:927-932.

Bottom: The broad color spectrum of quantum dots that is now available. These nanoscale particles can be functionalized and attached to a variety of different chemical species for tagging purposes. The great advantages of quantum dots are that they can all be excited at the same wavelength and are very resistant to photobleaching.

SOURCE: Courtesy of Shuming Nie, Emory University.

From: 3, Imaging Techniques: State of the Art and Future Potential

Cover of Visualizing Chemistry
Visualizing Chemistry: The Progress and Promise of Advanced Chemical Imaging.
National Research Council (US) Committee on Revealing Chemistry through Advanced Chemical Imaging.
Washington (DC): National Academies Press (US); 2006.
Copyright © 2006, National Academy of Sciences.

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