Impact of indoor ventilation efficiency on acetone inhalation exposure concentration and tissue dose in respiratory tract

Liu, Cong; Yoo, Sung‐Jun; Ito, Kazuhide

doi:10.1007/s12273-022-0954-4

Cited by 11 publications

(2 citation statements)

References 32 publications

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“…The presence of elevated levels of acetone in breath provides valuable insights into glucose metabolism dysregulation, which renders its analysis particularly pertinent in the context of diabetes monitoring and diagnosis. It is a biomarker of importance in facilitating early identification of the disease and enabling effective patient management strategies. − Furthermore, acetone is frequently applied as a solvent in diverse industrial sectors, thereby posing an increased risk of occupational exposure. − Herein, the analytical parameters for the quantification of both vapors were acquired using the UV-3D-printed Al-coated iHWG sensing device.…”

Section: Resultsmentioning

confidence: 99%

Fabrication of Low-Cost Miniaturized Gas Cells via SLA 3D-Printing for UV-Based Gas Sensors

Barreto,

Gelamo,

Mizaikoff

et al. 2024

ACS Omega

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The use of 3D-printing technology for producing optical devices (i.e., mirrors and waveguides) remains challenging, especially in the UV spectral regime. Gas sensors based on absorbance measurements in the UV region are suitable for determining numerous volatile species in a variety of samples and analytical scenarios. The performance of absorbance-based gas sensors is dependent on the ability of the gas cell to propagate radiation across the absorption path length and facilitate interaction between photons and analytes. In this technical note, we present a 3D-printed substrate-integrated hollow waveguide (iHWG) to be used as a miniaturized and ultralightweight gas cell used in UV gas-sensing schemes. The substrates were fabricated via UV stereolithography and polished, and the light-guiding channel was coated with aluminum for UV reflectivity. This procedure resulted in a surface roughness of 11.2 nm for the reflective coating, yielding a radiation attenuation of 2.25 W/cm2. The 3D-printed iHWG was coupled to a UV light source and a portable USB-connected spectrometer. The sensing device was applied for the quantification of isoprene and acetone, serving as a proof-of-concept study. Detection limits of 0.22 and 0.03% in air were obtained for acetone and isoprene, respectively, with a nearly instantaneous sensor response. The development of portable, low-cost, and ultralightweight UV optical sensors enables their use in a wide range of scenarios ranging from environmental monitoring to clinical/medical applications.

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Section: Resultsmentioning

confidence: 99%

Fabrication of Low-Cost Miniaturized Gas Cells via SLA 3D-Printing for UV-Based Gas Sensors

Barreto,

Gelamo,

Mizaikoff

et al. 2024

ACS Omega

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“…Environmental quality has become a major public health concern which exists in both indoor and outdoor contexts. For the indoor environment quality, as people spend more than 90% of their time indoors (Sundell 2004), indoor environmental quality (IEQ) is crucial for occupants' health (Li et al 2023), comfort (Wu et al 2021), and productivity (Deng et al 2022). For the outdoor environment quality, urban air pollution, atmospheric transport and dispersal events, and extreme weather have detrimental impacts on public health and safety (Hutchinson et al 2017).…”

Section: Introductionmentioning

confidence: 99%

AlphaMobileSensing: A virtual testbed for mobile environmental monitoring

Zhou

Zhong

et al. 2023

Build. Simul.

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Environmental monitoring plays a critical role in creating and maintaining a comfortable, productive, and healthy environment. Built upon the advancements of robotics and data processing, mobile sensing demonstrates its potential to address problems regarding cost, deployment, and resolution that stationary monitoring encounters, which therefore has attracted increasing research attentions recently. To facilitate mobile sensing, two key algorithms are needed: the field reconstruction algorithm and the route planning algorithm. The field reconstruction algorithm is to reconstruct the entire environment field from spatially-and temporally-discrete measurements collected by the mobile sensors. The route planning algorithm is to instruct the mobile sensors where the mobile sensor needs to move to for the next measurements. The performance of mobile sensors highly depends on these two algorithms. However, developing and testing those algorithms in the real world is expensive, challenging, and time-consuming. To address these issues, we proposed and implemented an open-source virtual testbed, AlphaMobileSensing, that can be used to develop, test, and benchmark mobile sensing algorithms. AlphaMobileSensing aims to help users more easily develop and test the field reconstruction and route planning algorithms for mobile sensing solutions, without worrying about hardware fault, test accidents (such as collision during the test), etc. The separation of concerns can significantly reduce the cost of developing software solutions for mobile sensing. For versatility and flexibility, AlphaMobileSensing was wrapped up using the standardized interface of OpenAI Gym, and it also provides an interface for loading physical fields that were generated by numerical simulations as virtual test sites to perform mobile sensing and retrieving monitoring data. We demonstrated applications of the virtual testbed by implementing and testing algorithms for physical field reconstruction in both static and dynamic indoor thermal environments. AlphaMobileSensing provides a novel and flexible platform to develop, test, and benchmark mobile sensing algorithms more easily, conveniently, and efficiently.AlphaMobileSensing is open sourced at https://github.com/kishuqizhou/AlphaMobileSensing.

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Research on the influence of outdoor trees on natural ventilation performance of an academic building

et al. 2023

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Impact of indoor ventilation efficiency on acetone inhalation exposure concentration and tissue dose in respiratory tract

Cited by 11 publications

References 32 publications

Fabrication of Low-Cost Miniaturized Gas Cells via SLA 3D-Printing for UV-Based Gas Sensors

Fabrication of Low-Cost Miniaturized Gas Cells via SLA 3D-Printing for UV-Based Gas Sensors

AlphaMobileSensing: A virtual testbed for mobile environmental monitoring

Research on the influence of outdoor trees on natural ventilation performance of an academic building

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