beta-GALACTOSIDASE DETECTION USING A LONG PERIOD GRATING FIBER SENSOR
UNIVERSITY POLITEHNICA OF BUCHAREST SCIENTIFIC BULLETIN-SERIES A-APPLIED MATHEMATICS AND PHYSICS(2021)
Abstract
Here we report a long period grating fiber sensor used to detect beta-Galactosidase in water, an enzyme produced by E. coli that can be used to reveal the presence of the bacteria and their concenfration. The advantage of this approach is that beta-Galactosidase is produced by a vivid bacterium and its concenfration is proportional to bacteria concentration. The purpose of this study is to determine the sensitivity of such sensor. The measurement of beta-Galactosidase concenfration bases on the long period grating fiber high sensitivity at refractive index modifications of the ambient. Tests proved a good concordance between calculations and measurements.
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Key words
beta-Galactosidase, Long Period Grating Fiber Sensor, refractive index detection
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