DocumentCode
2136624
Title
Reduction of interference between pH and optical output signals in a multimodal bio-image sensor
Author
Nakazawa, Hirokazu ; Ishida, Makoto ; Sawada, Kazuaki
Author_Institution
Dept. of Electr. & Electron. Inf. Eng., Toyohashi Univ. of Technol., Toyohashi, Japan
fYear
2010
fDate
1-4 Nov. 2010
Firstpage
2299
Lastpage
2302
Abstract
We have developed a low interference multimodal sensor for pH (power of Hydrogen) and optical imaging. The signal interference between pH and optical outputs is shown to be caused during pH sensing by the photogenerated electrons. We suppressed this interference by adding another charge accumulation region to the conventional multimodal sensor structure for measuring only the amount of photogenerated electrons and thereby discriminating between pH and optical signals.
Keywords
biological techniques; chemical sensors; hydrogen; image sensors; interference (signal); optical sensors; charge accumulation region; low interference multimodal sensor; multimodal bio-image sensor; optical imaging; optical output signals; optical outputs; pH sensing; photogenerated electrons; power of hydrogen; signal interference;
fLanguage
English
Publisher
ieee
Conference_Titel
Sensors, 2010 IEEE
Conference_Location
Kona, HI
ISSN
1930-0395
Print_ISBN
978-1-4244-8170-5
Electronic_ISBN
1930-0395
Type
conf
DOI
10.1109/ICSENS.2010.5690741
Filename
5690741
Link To Document