1.   Another fluorescent chemical applied to the brain surface attached itself to the beta-amyloid deposits.

2.   Attaching a fluorescent chemical to a target protein poses challenges, said Fred Cohen, a professor of pharmacology at the University of California at San Francisco.

3.   One technique involves dosing the cell with fluorescent chemicals that bind to proteins of interest.

4.   Police planned to search the area into the night, as well as use a fluorescent chemical to detect any traces of evidence that may linger behind.

5.   Professor Roger Tsien at the University of California at San Diego said scientists have become increasingly sophisticated in their use of these fluorescent chemicals.

6.   The gene to be tested is broken into fragments, tagged with a fluorescent chemical and injected as a solution into the cartridge that holds the chip.