AN ARDUINO UNO BASED BIOSENSOR FOR WATER POLLUTION MONITORING USING IMMOBILISED ALGAE CHLORELLA VULGARIS

摘要

This paper presents a simple biosensor for observing the dissolved oxygen (DO) production inwater. The measuring process is implemented using the biochips G connected with a biosensor moduleand electronic circuit to detect the changes of dissolved oxygen in real time measurement. Initial testwas completed to observe the biochip response to the different oxygenated water solution. A light anddark experiment with ON/OFF phase of 20 minutes illumination period was realized to stimulate thegreen algae Chlorella vulgaris photosynthesis process to DO rate. The results show Biochip G usingalgae Chlorella vulgaris response to environmental changing conditions in the form of relationshipbetween output voltage and DO rate the solution.