A Nano-Thin Film-Based Prototype QCM Sensor Array for Monitoring Human Breath and Respiratory Patterns

作者：Selyanchyn Roman; Wakamatsu Shunichi; Hayashi Kenshi; Lee Seung Woo^*

来源：Sensors (Switzerland), 2015, 15(8): 18834-18850.

DOI：10.3390/s150818834

• quartz crystal microbalance sensor
• nano-thin film
• respiratory measurement
• lung function test

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 flowwas 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.

• 出版日期2015-8