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Sensors (Basel)

Title:		Response characterization of a fiber optic sensor array with dye-coated planar waveguide for detection of volatile organic compounds
Author(s):		Lee JS; Yoon NR; Kang BH; Lee SW; Gopalan SA; Jeong HM; Lee SH; Kwon DH; Kang SW;
Address:		"School of Electronic Engineering, College of IT Engineering, Kyungpook National University, 1370 Sankyuk-dong, Bukgu, 702-701 Daegu, Korea. js1245@ee.knu.ac.kr. Department of Sensor and Display Engineering, Kyungpook National University, 1370 Sankyuk-dong, Bukgu, 702-701 Daegu, Korea. duer135@naver.com. Center for Functional Devices Fusion Platform, Kyungpook National University, 1370 Sankyuk-dong, Bukgu, 702-701 Daegu, Korea. bhkang@ee.knu.ac.kr. School of Electronic Engineering, College of IT Engineering, Kyungpook National University, 1370 Sankyuk-dong, Bukgu, 702-701 Daegu, Korea. sw3148@ee.knu.ac.kr. School of Electronic Engineering, College of IT Engineering, Kyungpook National University, 1370 Sankyuk-dong, Bukgu, 702-701 Daegu, Korea. gsaianandh@gmail.com. School of Electronic Engineering, College of IT Engineering, Kyungpook National University, 1370 Sankyuk-dong, Bukgu, 702-701 Daegu, Korea. hmjeong@ee.knu.ac.kr. Department of Biomedical, School of Medicine, Dankook University, 119, Dandae-ro, Dongnam-gu, cheonan-si, 330-714 Chungnam, Korea. shalee@dankook.ac.kr. Department of Electronics Engineering, Kyungil University, Hayang-up, Gyeongsang buk-do 712-702, Korea. dhkwon@kiu.ac.kr. School of Electronic Engineering, College of IT Engineering, Kyungpook National University, 1370 Sankyuk-dong, Bukgu, 702-701 Daegu, Korea. swkang@knu.ac.kr"
Journal Title:		Sensors (Basel)
Year:		2014
Volume:		20140701
Issue:		7
Page Number:		11659 - 11671
DOI:		10.3390/s140711659
ISSN/ISBN:		1424-8220 (Electronic) 1424-8220 (Linking)
Abstract:		"We have developed a multi-array side-polished optical-fiber gas sensor for the detection of volatile organic compound (VOC) gases. The side-polished optical-fiber coupled with a polymer planar waveguide (PWG) provides high sensitivity to alterations in refractive index. The PWG was fabricated by coating a solvatochromic dye with poly(vinylpyrrolidone). To confirm the effectiveness of the sensor, five different sensing membranes were fabricated by coating the side-polished optical-fiber using the solvatochromic dyes Reinhardt's dye, Nile red, 4-aminophthalimide, 4-amino-N-methylphthalimide, and 4-(dimethylamino)cinnamaldehyde, which have different polarities that cause changes in the effective refractive index of the sensing membrane owing to evanescent field coupling. The fabricated gas detection system was tested with five types of VOC gases, namely acetic acid, benzene, dimethylamine, ethanol, and toluene at concentrations of 1, 2,...,10 ppb. Second-regression and principal component analyses showed that the response properties of the proposed VOC gas sensor were linearly shifted bathochromically, and each gas showed different response characteristics"
Keywords:		Coloring Agents/*chemistry Equipment Design Equipment Failure Analysis Fiber Optic Technology/*instrumentation Microarray Analysis/*instrumentation Surface Plasmon Resonance/*instrumentation *Transducers Volatile Organic Compounds/*analysis/chemistry;
Notes:		"MedlineLee, Jae-Sung Yoon, Na-Rae Kang, Byoung-Ho Lee, Sang-Won Gopalan, Sai-Anand Jeong, Hyun-Min Lee, Seung-Ha Kwon, Dae-Hyuk Kang, Shin-Won eng Research Support, Non-U.S. Gov't Switzerland 2014/07/06 Sensors (Basel). 2014 Jul 1; 14(7):11659-71. doi: 10.3390/s140711659"