A Novel Wireless Wearable Volatile Organic Compound (VOC) Monitoring Device with Disposable Sensors

Deng, Yue; Chen, Cheng; Xian, Xiaojun; Tsow, Francis; Verma, Gaurav; McConnell, Rob; Fruin, Scott; Tao, Nongjian; Forzani, Erica

doi:10.3390/s16122060

Cited by 19 publications

(12 citation statements)

References 28 publications

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“…It allows easy and stable communication between NGSMs and a smartphone in which the mobile app is supported. In this review, 23 articles [ 19 , 27 , 32 , 35 , 37 , 38 , 39 , 50 , 51 , 56 , 60 , 67 , 69 , 77 , 79 , 80 , 81 , 82 , 83 , 84 , 85 , 86 ] out of 67 reports information about the use of any mobile app supporting NGMSs; most of those (13 apps) were developed on the Android platform [ 6 , 35 , 37 , 38 , 40 , 50 , 53 , 60 , 81 , 84 , 86 , 87 , 88 ], only one was developed on the iOS platform [ 81 ], and the remaining were not specified. As reported by Kanjo et al [ 89 ], using a mobile phone to collect data can bring many advantages, especially related to the fact that (i) a large percentage of the population carries around mobile phones; (ii) many kinds of data can be processed, stored, and transferred easily by mobile phones; (iii) the collection of data should be more power-efficient because the acquired information are sent directly to the mobile phone.…”

Section: Resultsmentioning

confidence: 99%

Features and Practicability of the Next-Generation Sensors and Monitors for Exposure Assessment to Airborne Pollutants: A Systematic Review

Fanti

Borghi

Spinazzè

et al. 2021

Sensors

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In the last years, the issue of exposure assessment of airborne pollutants has been on the rise, both in the environmental and occupational fields. Increasingly severe national and international air quality standards, indoor air guidance values, and exposure limit values have been developed to protect the health of the general population and workers; this issue required a significant and continuous improvement in monitoring technologies to allow the execution of proper exposure assessment studies. One of the most interesting aspects in this field is the development of the “next-generation” of airborne pollutants monitors and sensors (NGMS). The principal aim of this review is to analyze and characterize the state of the art and of NGMS and their practical applications in exposure assessment studies. A systematic review of the literature was performed analyzing outcomes from three different databases (Scopus, PubMed, Isi Web of Knowledge); a total of 67 scientific papers were analyzed. The reviewing process was conducting systematically with the aim to extrapolate information about the specifications, technologies, and applicability of NGMSs in both environmental and occupational exposure assessment. The principal results of this review show that the use of NGMSs is becoming increasingly common in the scientific community for both environmental and occupational exposure assessment. The available studies outlined that NGMSs cannot be used as reference instrumentation in air monitoring for regulatory purposes, but at the same time, they can be easily adapted to more specific applications, improving exposure assessment studies in terms of spatiotemporal resolution, wearability, and adaptability to different types of projects and applications. Nevertheless, improvements needed to further enhance NGMSs performances and allow their wider use in the field of exposure assessment are also discussed.

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Section: Resultsmentioning

confidence: 99%

Features and Practicability of the Next-Generation Sensors and Monitors for Exposure Assessment to Airborne Pollutants: A Systematic Review

Fanti

Borghi

Spinazzè

et al. 2021

Sensors

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“…When combined with other wearable environmental sensors [58][59][60][61] and physiological sensors such as a wheezing detection patch or a spirometer, this wearable IoT sensor platform can provide objective exposure data correlated with asthma symptoms and physiological responses. It can also be used in a citizen-science environmental monitoring system to map air pollution at much higher spatial and temporal resolutions than currently available.…”

Section: Discussionmentioning

confidence: 99%

A wearable IoT aldehyde sensor for pediatric asthma research and management

Dong

Downen

et al. 2019

Sensors and Actuators B: Chemical

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Mechanistic studies of pediatric asthma require objective measures of environmental exposure metrics correlated with physiological responses. Here we report a cloud-based wearable IoT sensor system which can measure an asthma patient's exposure to aldehydes, a known class of airway irritants, in real-life settings. The wrist-watch shaped sensor can measure formaldehyde levels in air from 30ppb to 10ppm using fuel cell technology, and continuously operate over 7 days without recharging. The sensor wirelessly uploads data to an Android smartphone via Bluetooth Low Energy (BLE). The smartphone also functions as a gateway to a cloud-based informatics system which handles sensor data storage, management and analytics. Potential applications of this IoT sensor system include epidemiological studies of asthma development and exacerbations, personalized asthma management and environmental monitoring.

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“…A mobile low-cost VOCs sensing device for free-living conditions has been reported before by our group [ 28 , 29 , 30 , 31 ]. The sensing device works with a frequency-based sensing mechanism, which utilizes a mass sensitive piezoelectric resonator with a selective polymer (molecularly imprinted polymer) modified quartz tuning fork.…”

Section: Methodsmentioning

confidence: 99%

“…The mobile VOCs sensing device connects wirelessly to an Android smart phone via Bluetooth ® . The validation tests of the VOC monitor were reported in our previous publications [ 28 , 29 , 30 , 31 ]. A total of 18 participants out of the 36 participants were randomly selected to have their VOCs exposure measured throughout the day.…”

Section: Methodsmentioning

confidence: 99%

Tracking Personal Health-Environment Interaction with Novel Mobile Sensing Devices

Deng

Liu

Tsow

et al. 2018

Sensors

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The development of connected health devices has allowed for a more accurate assessment of a person’s state under free-living conditions. In this work, we use two mobile sensing devices and investigate the correlation between individual’s resting metabolic rate (RMR) and volatile organic compounds (VOCs) exposure levels. A total of 17 healthy, young, and sedentary office workers were recruited, measured for RMR with a mobile indirect calorimetry (IC) device, and compared with their corresponding predicted RMR values from the Academy of Nutrition and Dietetics’ recommended epidemiological equation, the Mifflin–St Jeor equation (MSJE). Individual differences in the RMR values from the IC device and the epidemiological equation were found, and the subjects’ RMRs were classified as normal, high, or low based on a cut-off of ±200 kcal/day difference with respect to the predicted value. To study the cause of the difference, VOCs exposure levels of each participant’s daytime working environment and nighttime resting environment were assessed using a second mobile sensing device for VOCs exposure detection. The results showed that all sedentary office workers had a low VOCs exposure level (<2 ppmC), and there was no obvious correlation between VOCs exposure and the RMR difference. However, an additional participant who was a worker in an auto repair shop, showed high VOCs exposure with respect to the sedentary office worker population and a significant difference between measured and predicted RMR, with a low RMR of 500 kcal/day difference. The mobile sensing devices have been demonstrated to be suitable for the assessment of direct information of human health–environment interactions at free-living conditions.

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A Novel Wireless Wearable Volatile Organic Compound (VOC) Monitoring Device with Disposable Sensors

Cited by 19 publications

References 28 publications

Features and Practicability of the Next-Generation Sensors and Monitors for Exposure Assessment to Airborne Pollutants: A Systematic Review

Features and Practicability of the Next-Generation Sensors and Monitors for Exposure Assessment to Airborne Pollutants: A Systematic Review

A wearable IoT aldehyde sensor for pediatric asthma research and management

Tracking Personal Health-Environment Interaction with Novel Mobile Sensing Devices

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