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http://dx.doi.org/10.3807/JOSK.2015.19.6.700

An Array-Type RGB Sensor for Precision Measurement of pH  

Kim, Ji-Sun (Department of Biomedical Engineering, BK21 Plus Research Institute of Biomedical Engineering, College of Biomedical and Health Science, Konkuk University)
Oh, Han-Byeol (Department of Biomedical Engineering, BK21 Plus Research Institute of Biomedical Engineering, College of Biomedical and Health Science, Konkuk University)
Kim, A-Hee (Department of Biomedical Engineering, BK21 Plus Research Institute of Biomedical Engineering, College of Biomedical and Health Science, Konkuk University)
Kim, Jun-Sik (Department of Biomedical Engineering, BK21 Plus Research Institute of Biomedical Engineering, College of Biomedical and Health Science, Konkuk University)
Lee, Eun-Suk (Department of Biomedical Engineering, BK21 Plus Research Institute of Biomedical Engineering, College of Biomedical and Health Science, Konkuk University)
Goh, Bong-Jun (Department of Biomedical Engineering, BK21 Plus Research Institute of Biomedical Engineering, College of Biomedical and Health Science, Konkuk University)
Choi, Ju-Hyeon (Department of Biomedical Engineering, BK21 Plus Research Institute of Biomedical Engineering, College of Biomedical and Health Science, Konkuk University)
Shin, Ye-Ji (Department of Biomedical Engineering, BK21 Plus Research Institute of Biomedical Engineering, College of Biomedical and Health Science, Konkuk University)
Baek, Jin-Young (Department of Biomedical Engineering, BK21 Plus Research Institute of Biomedical Engineering, College of Biomedical and Health Science, Konkuk University)
Lee, Ki Sung (Yon-Sei Family Clinic)
Jun, Jae-Hoon (Department of Biomedical Engineering, BK21 Plus Research Institute of Biomedical Engineering, College of Biomedical and Health Science, Konkuk University)
Publication Information
Journal of the Optical Society of Korea / v.19, no.6, 2015 , pp. 700-704 More about this Journal
Abstract
As pH is a widely used index in chemical, medical, and environmental applications, research on pH sensors has been active in recent years. This study obtained RGB values by measuring the reflected light from a liquid sample to detect fine changes in pH, and performed mathematical modeling to investigate the relationship between the detected optical signal and pH value. Also, the trends in pH changes were easily identified by analyzing RGB values and displaying them in the color coordinate for easy visualization of data. This method implemented a user-friendly system that can measure and analyze in real time. This system can be used in many fields such as genetic engineering, environmental engineering, and clinical engineering, because it not only can measure pH but also replaces a colorimeter or turbidimeter.
Keywords
Chromaticity diagram; Color measurement; Optical pH sensor; pH detection system;
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1 S. Pöller and W. Schuhmann, “A miniaturized voltammetric pH sensor based on optimized redox polymers,” Electrochim. Acta. 140, 101-107 (2014).   DOI
2 B. Schyrr, S. Pasche, E. Scolan, R. Ischer, D. Ferrario, J. A. Porchet, and G. Voirin, “Development of a polymer optical fiber pH sensor for on-body monitoring application,” Sens. Actuators B 194, 238-248 (2014).   DOI
3 S. Bhadra, D. J. Thomson, and G. E. Bridges, “Monitoring acidic and basic volatile concentration using a pH-electrode based wireless passive sensor,” Sens. Actuators B 209, 803-810 (2015).   DOI
4 T. H. Nguyen, T. Venugopala, S. Chen, T. Sun, K. T. V. Grattan, S. E. Taylor, P. A. M. Basheer, and A. E. Long, “Fluorescence based fibre optic pH sensor for the pH 10-13 range suitable for corrosion monitoring in concrete structures,” Sens. Actuators B 191, 498-507 (2014).   DOI
5 Q. Li, X. H. Su, L. Y. Wang, W. Sun, Y. B. Lei, and Z. Y. Wen, “An OFF-ON-OFF type of pH fluorescent sensor: Benzo[c,d]indole-based dimethine cyanine dye-synthesis, spectral properties and density functional theory studies,” J. Lumin. 154, 124-130 (2014).   DOI
6 T. Shiraishi, T. saito, H. Kagechika, and T. Hirano, “Developmentof a novel fluorescent sensor to detect a specific rangle of pH,” Tetrahedron Lett. 55, 6784-6786 (2014).   DOI
7 M. Hosseini, R. Heydari, and M. Alimoradi, “A novel pH optical sensor using methyl orange based on triacetylcellulose membranes as support,” Spectrochim. Acta Part A 128, 864-867 (2014).   DOI
8 J. P. Devadhasan and S. Kim, “An ultrasensitive method of real time pH monitoring with complementary metal oxide semiconductor image sensor,” Anal. Chim. Acta 858, 55-59 (2015).   DOI
9 Y. Feng, Y. Liu, C. Su, X. Ji, and Z. He, “New fluorescent pH sensor based on label-free silicon nanodots,” Sens. Actuators B 203, 795-801 (2014).   DOI
10 W. C. Wong, C. C. Chan, P. Hu, J. R. Chan, Y. T. Low, X. Dong, and K. C. Leong, “Miniature pH optical fiber sensor based on waist-enlarged bitaper and mode excitation,” Sens. Actuators B 191, 579-585 (2014).   DOI
11 A. Anderson, J. Phair, J. Benson, B. Meenan, and J. Davis, “Investigating the use of endogenous quinoid moieties on carbon fibre as means of developing micro pH sensors,” Mater. Sci. Eng. C 43, 533-537 (2014).   DOI
12 J. Y. Kim, “Comparison on chromaticity of the media facade based on CIE coordinates analysis-based on the cases of domestic and Hong Kong’s characteristic,” KDK 21, 235-244 (2012).
13 M. Lu and R. G. Compton, “Voltammetric pH sensor based on an edge plane pyrolytic graphite electrode,” Analyst. 139, 2397-2403 (2014).   DOI
14 Q. Yang, H. Wang, X. Lan, B. Cheng, S. Chen, H. Shi, H. Xiao, and Y. Ma, “Reflection-mode micro-spherical fiber-optic probes for in vitro real-time and single-cell level pH sensing,” Sens. Actuators B 207, 571-580 (2015).   DOI
15 M. Glanc-Gostkiewicz, M. Sophocleous, J. K. Atkinson, and E. Garcia-Breijo, “Performance on miniaturised thick-film solid state pH sensors,” Sens. Actuators A 202, 2-7 (2013).   DOI