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Chemiluminescence Abbreviated Light Sticks -- the same reaction provides the energy

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Presentation on theme: "Chemiluminescence Abbreviated Light Sticks -- the same reaction provides the energy"— Presentation transcript:

1

2 Chemiluminescence Abbreviated

3 Light Sticks -- the same reaction provides the energy

4 Engineering the Light Stick:

5 Energy Profile - Light Stick Dye (Ground State) Ea + H 2 O CO 2 Dye* (Excited State) Ea Heat of Reaction Is Exothermic (∆H) < 0 Excited State of Dye* Returns to Ground State And Emits Light Photon

6 Energy Profile - Light Stick Dye (Ground State) Ea + H 2 O CO 2 Dye* (Excited State) Ea Heat of Reaction Is Exothermic (∆H) < 0 Excited State of Dye* Returns to Ground State And Emits Light Photon

7 Light Sticks -- Different dyes are used to get different colors of light Green Blue

8 Green Fluorescent Dye: 9,10-Bis(phenylethynyl)anthracene

9 Blue Fluorescent Dye: 9,10-Diphenylanthracene

10 Firefly Luciferin

11 Firefly Oxyluciferin


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