Title :
A system for measuring the photosynthetic activity of water plants based on carbon dioxide absorption
Author :
Nakaoka, Shinichiro ; Yamada, Akimasa
Author_Institution :
Dept. of Mech. Syst. Eng., Hiroshima Inst. of Technol., Hiroshima, Japan
Abstract :
This paper reports a method for measuring the photosynthetic activity of water plants. Plants in photosynthesis absorb carbon dioxide (CO2) and release carbohydrates and oxygen. As CO2 is readily soluble in water and decreases pH, the pH of water reflects the degree of photosynthesis of water plants. To quantify the small changes of pH, we applied an automated pH measurement system consisting of an ion-sensitive field effect transistor (ISFET) sensor we developed earlier. The pH measured in a test tank containing the water plant Cabomba caroliniana rose by 0.840 pH after 4 hours of light irradiation. This CO2 absorption of the plant during photosynthesis could be determined based on this pH measurement.
Keywords :
biochemistry; biological techniques; biomolecular effects of radiation; botany; carbon compounds; cellular effects of radiation; ion sensitive field effect transistors; pH; photosynthesis; CO2; Cabomba caroliniana; ISFET sensor; carbohydrates; carbon dioxide absorption; ion-sensitive field effect transistor sensor; light irradiation; oxygen; pH measurement system; photosynthetic activity; water plants;
Conference_Titel :
Micro-NanoMechatronics and Human Science (MHS), 2012 International Symposium on
Conference_Location :
Nagoya
Print_ISBN :
978-1-4673-4811-9
DOI :
10.1109/MHS.2012.6492395
