고승환 (서울대학교)

한빛사논문

조회243

서울대학교

CV File 235 kb

Biomaterials, Sep 27 2024, 314 S0142-9612(24)00400-9 | https://doi.org/10.1016/j.biomaterials.2024.122866 Smart filtering facepiece respirator with self-adaptive fit and wireless humidity monitoring

Kangkyu Kwon ^a,b,1, Yoon Jae Lee ^a,b,1, Yeongju Jung ^c, Ira Soltis ^b,d, Yewon Na ^b,d, Lissette Romero ^b,e, Myung Chul Kim ^b,d, Nathan Rodeheaver ^b,d, Hodam Kim ^b,d, Chaewon Lee ^a,b, Seung-Hwan Ko^c,f, Jinwoo Lee ^g, Woon-Hong Yeo ^b,d,h,i

^aSchool of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA

^bWearable Intelligent Systems and Healthcare Center (WISH Center), Institute for Matter and Systems, Georgia Institute of Technology, Atlanta, GA, 30332, USA

^cApplied Nano and Thermal Science Lab, Department of Mechanical Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, South Korea

^dGeorge W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA

^eSchool of Industrial Design, Georgia Institute of Technology, Atlanta, GA, 30332, USA

^fInstitute of Advanced Machinery and Design (SNU-IAMD), Seoul National University, Gwanak-ro, Gwanak-gu, Seoul, 08826, South Korea

^gDepartment of Mechanical, Robotics, and Energy Engineering, Dongguk University, 30 Pildong-ro 1-gil, Jung-gu, Seoul, 04620, South Korea

^hWallace H. Coulter Department of Biomedical Engineering, Georgia Tech and Emory University School of Medicine, Atlanta, GA, 30332, USA

ⁱParker H. Petit Institute for Bioengineering and Biosciences, Georgia Institute of Technology, Atlanta, GA, 30332, USA

¹K. Kwon and Y. J. Lee equally contributed to this work.

Corresponding authors: Seung-Hwan Ko, Jinwoo Lee, Woon-Hong Yeo

Abstract

The widespread emergence of airborne diseases has transformed our lifestyle, and respirators have become an essential part of daily life. Nevertheless, finding respirators that fit well can be challenging due to the variety of human facial sizes and shapes, potentially compromising protection. In addition, the current respirators do not inform the user of the air quality in case of continuous long-term use. Here, we introduce a smart filtering facepiece respirator incorporating a humidity sensor and pressure sensory feedback for self-fit adjusting and maintaining an adequate fit. The humidity detection sensor uses laser-induced graphene, and the pressure sensor array based on the dielectric elastomeric sponge monitors the respirator contact on the user's face, providing real-time closed-loop feedback and the wearer's fitting status. Those membrane sensors show outstanding performance, such as a low humidity hysteresis of 0.131 % and a precise pressure detection limit of 0.23 ± 0.02 kPa. As a result of the self-fit adjusting mode, the overall fit factor is increased by 10 % on average compared to the commercial respirator. This significant improvement in fit factor, coupled with the innovative design, has the potential to develop next-generation facepiece respirators as essential personal protective equipment.

논문정보

형식Research article
게재일2024년 09월 (BRIC 등록일 2024-09-30)
연구진국내(교신)+국외 연구진
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