한빛사논문
- 조회285
연세대학교
Moon-Ju Kim 1, Zhiquan Song 1, Chang Kyu Lee 1, Tae Gyeong Yun 1, Joo-Yoon Noh 1, Mi-Kyung Park 2, Dongeun Yong 3, Min-Jung Kang 4, Jae-Chul Pyun 1
1Department of Materials and Science and Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea.
2School of Food Science and Biotechnology, Kyungpook National University, 80 Daehak-ro, Buk-Gu, Daegu, 41566, Republic of Korea.
3Department of Laboratory Medicine and Research Institute of Bacterial Resistance, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea.
4Molecular Recognition Research Center, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea.
CORRESPONDING AUTHOR : Jae-Chul Pyun
Abstract
Rapid spread of infectious diseases is a global threat and has an adverse impact on human health, livelihood, and economic stability, as manifested in the ongoing coronavirus disease 2019 (COVID-19) pandemic. Even though people wear a face mask as protective equipment, direct disinfection of the pathogens is barely feasible, which thereby urges the development of biocidal agents. Meanwhile, repetitive respiration generates temperature variation wherein the heat is regrettably wasted. Herein, a biocidal ZnO nanorod-modified paper (ZNR-paper) composite that is 1) integrated on a face mask, 2) harvests waste breathing-driven thermal energy, 3) facilitates the pyrocatalytic production of reactive oxygen species (ROS), and ultimately 4) exhibits antibacterial and antiviral performance is proposed. Furthermore, in situ generated compressive/tensile strain of the composite by being attached to a curved mask is investigated for high pyroelectricity. The anisotropic ZNR distortion in the bent composite is verified with changes in ZnO bond lengths and OZnO bond angles in a ZnO4 tetrahedron, resulting in an increased polarization state and possibly contributing to the following pyroelectricity. The enhanced pyroelectric behavior is demonstrated by efficient ROS production and notable bioprotection. This study exploring the pre-strain effect on the pyroelectricity of ZNR-paper might provide new insights into the piezo-/pyroelectric material-based applications.
논문정보
- Research article
- 2023년 01월 (BRIC 등록일 2023-03-09)
- 국내 연구진
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