That’s cool-------- Bioluminescence and Chemiluminescence
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Transcript of That’s cool-------- Bioluminescence and Chemiluminescence
That’s cool--------Bioluminescence and Chemiluminescence
Key words Chemiluminescence
Bioluminescence
Antioxidant
ChemiluminescenceIt is the emission of energy with limited
emission of luminescence, as the result of a chemical reaction.
The ingredient of Chemiluminescence is always Luminol .
Luminol (3-Aminophthalhydrazide) is a useful chemical reagent that exhibits chemiluminescence, with a striking blue glow, when mixed with an appropriate oxidizing agent. .It is a white to slightly yellow crystalline solid that is soluble in most polar organic solvents, but insoluble in water. But It is bad for human bodies, especially for eyes and skin. Because it can emit light when it is oxidized, It can be used in criminal investigation to detect blood.
light stick: it uses chemiluminescent
reactions and works without an external
energy source.
The principle how light sticks work:
CPPO+H2O2——2C6H5OH+2CO2
In this process,a intermedium will
appear that has high energy and it will
pass the energy to dye. Then excited
electronic state becomes unstable so that
it will release light.
Bioluminescence means that organisms or its extractive can emit light, such as firefly(a flying insect with a tail that shines in the dark).
AntioxidantAntioxidant: A kind of substance that reacts
so readily with oxygen, such as VITAMIN C or E. Antioxidant can prevent human body from the harmful effect of oxygen and even the senium. We can often get Antioxidant from green tea, apple and broccoli.
Makes cut fruit turn brown—
The color is due to brown pigments that are
formed by the oxidation of colorless compounds
normally present in the cell of the fruit. Oxygen
in the air is oxidizing agent that reacts with the
colorless compounds to produce the brown
pigments. The oxygen is reduced when it accepts
electrons from the pigments, so the pigments
function as reducing agents. This combination of
oxidation and reduction goes hand in hand in a
redox reaction because another must gain
electrons that are lost by one element.
Questionswhat kinds of vitamin are considered as
antioxidantas VITAMIN C or Ewrite structural formula for resultants of
reaction inside light sticks.
What is the ingredient of ChemiluminescenceLuminol
Thank you!