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ATP is a molecule found only in and around living cells, and as such it gives a direct measure of biological concentration and health. ATP is quantified by measuring the light produced through its reaction with the naturally-occurring firefly enzyme luciferase using a luminometer.
Firefly luciferase is the light-emitting enzyme responsible for the bioluminescence of fireflies and click beetles. The enzyme catalyses the oxidation of firefly luciferin, requiring oxygen and ATP. Because of the requirement of ATP, firefly luciferases have been used extensively in biotechnology.
The Microtox Model 500 is a laboratory-based photometer that measures acute toxicity.This analyser is a temperature-controlled, self-calibrating biosensor measuring system that uses the bioluminescence of Allivibrio fischeri to determine the toxicity of contaminated water, or elutriates of contaminated soils and sediments.
Fireflies are characterized by a phenomenon called bioluminescence, meaning they produce ... Get this 'luxury hotel'-like queen set while it's at an all-time low price of just $16. See all deals ...
Imaging of engineered E. coli Nissle 1917 in the mouse gut. Bioluminescence imaging (BLI) is a technology developed over the past decades (1990's and onward). [1] [2] [3] [when?] that allows for the noninvasive study of ongoing biological processes [4] [1] [5] [6] [7] Recently, bioluminescence tomography (BLT) has become possible and several systems have become commercially available.
Luciferase is a generic term for the class of oxidative enzymes that produce bioluminescence, and is usually distinguished from a photoprotein.The name was first used by Raphaël Dubois who invented the words luciferin and luciferase, for the substrate and enzyme, respectively. [1]
Photobiology is the scientific study of the beneficial and harmful interactions of light (technically, non-ionizing radiation) in living organisms. [1] The field includes the study of photophysics, photochemistry, photosynthesis, photomorphogenesis, visual processing, circadian rhythms, photomovement, bioluminescence, and ultraviolet radiation effects.
Much of the early work on the chemistry of the firefly luminescence was done in the lab of William D. McElroy at Johns Hopkins University.The luciferin was first isolated and purified in 1949 from a large amount of specimens, though it would be several years until a procedure was developed to crystallize the compound in high yield.