A Nano-Thin Film-Based Prototype QCM Sensor Array for Monitoring Human Breath and Respiratory Patterns.
Quartz crystal microbalance (QCM) sensor array was developed for multi-purpose human respiration assessment. The sensor system was designed to provide feedback for human respiration. Thorough optimization of measurement conditions: air flow, temperature in the QCM chamber, frequency measurement rate, and electrode position regarding to the gas flow-was performed. As shown, acquisition of respiratory parameters (rate and respiratory pattern) could be achieved even with a single electrode used in the system. The prototype system contains eight available QCM channels that can be potentially used for selective responses to certain breath chemicals. At present, the prototype machine is ready for the assessment of respiratory functions in larger populations in order to gain statistical validation. To the best of our knowledge, the developed prototype is the only respiratory assessment system based on surface modified QCM sensors.
Graduate School of Environmental Engineering, The University of Kitakyushu, 1-1 Hibikino, Wakamatsu, Kitakyushu 808-0135, Japan. romanselyanchyn@gmail.com.|WPI International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, 744, Motooka, Fukuoka 819-0395, Japan. romanselyanchyn@gmail.com.
Roman
R
Selyanchyn
Chitose Technical Center, Nihon Dempa Kogyo Co. Ltd., 1-3-1, Minami-Chitose, Hokkaido 066-0009, Japan. wakamatu@ndk.com.
Shunichi
S
Wakamatsu
Graduate School of Information Science and Electrical Engineering, Kyushu University, 744 Motooka, Fukuoka 819-0395, Japan. hayashi@ed.kyushu-u.ac.jp.
Kenshi
K
Hayashi
Graduate School of Environmental Engineering, The University of Kitakyushu, 1-1 Hibikino, Wakamatsu, Kitakyushu 808-0135, Japan. leesw@kitakyu-u.ac.jp.
Seung-Woo
SW
Lee
D004566:Electrodes; D006801:Humans; D008991:Monitoring, Physiologic / Q000295:instrumentation*; D036103:Nanotechnology / Q000295:instrumentation*; D058525:Quartz Crystal Microbalance Techniques / Q000295:instrumentation*; D012119:Respiration; D012815:Signal Processing, Computer-Assisted; D013499:Surface Properties; D013696:Temperature
lung function test; nano-thin film; quartz crystal microbalance sensor; respiratory measurement