| Title: | Water-Selective Nanostructured Dehumidifiers for Molecular Sensing Spaces |
| Author(s): | Liu J; Nagashima K; Hosomi T; Lei W; Zhang G; Takahashi T; Zhao X; Hanai Y; Nakao A; Nakatani M; Tanaka W; Saito H; Kanai M; Shimada T; Yasui T; Baba Y; Yanagida T; |
| Address: | "Department of Applied Chemistry, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan. PRESTO, Japan Science and Technology Agency, 4-1-8, Honcho, Kawaguchi-shi 332-0012, Saitama, Japan. Panasonic Corporation, Industrial Solutions Company, Sensing Solutions Development Center, Kadoma 1006, Kadoma 571-8506, Osaka, Japan. Institute for Materials Chemistry and Engineering, Kyushu University, 6-1 Kasuga-Koen, Kasuga, Fukuoka 816-8580, Japan. Department of Biomolecular Engineering, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan" |
| DOI: | 10.1021/acssensors.1c02378 |
| ISSN/ISBN: | 2379-3694 (Electronic) 2379-3694 (Linking) |
| Abstract: | "Humidity and moisture effects, frequently called water poisoning, in surroundings are inevitable for various molecular sensing devices, strongly affecting their sensing characteristics. Here, we demonstrate a water-selective nanostructured dehumidifier composed of ZnO/TiO(2)/CaCl(2) core-shell heterostructured nanowires for molecular sensing spaces. The fabricated nanostructured dehumidifier is highly water-selective without detrimental adsorptions of various volatile organic compound molecules and can be repeatedly operated. The thermally controllable and reversible dehydration process of CaCl(2).nH(2)O thin nanolayers on hydrophilic ZnO/TiO(2) nanowire surfaces plays a vital role in such water-selective and repeatable dehumidifying operations. Furthermore, the limitation of detection for sensing acetone and nonanal molecules in the presence of moisture (relative humidity approximately 90%) was improved more than 20 times using nanocomposite sensors by operating the developed nanostructured dehumidifier. Thus, the proposed water-selective nanostructured dehumidifier offers a rational strategy and platform to overcome water poisoning issues for various molecular and gas sensors" |
| Keywords: | Calcium Chloride Humidity *Nanowires Water *Zinc Oxide CaCl2.nH2O moisture effect molecular and gas sensors nanostructured dehumidifier nanowires; |
| Notes: | "MedlineLiu, Jiangyang Nagashima, Kazuki Hosomi, Takuro Lei, Wenjin Zhang, Guozhu Takahashi, Tsunaki Zhao, Xixi Hanai, Yosuke Nakao, Atsuo Nakatani, Masaya Tanaka, Wataru Saito, Hikaru Kanai, Masaki Shimada, Taisuke Yasui, Takao Baba, Yoshinobu Yanagida, Takeshi eng Research Support, Non-U.S. Gov't 2022/01/25 ACS Sens. 2022 Feb 25; 7(2):534-544. doi: 10.1021/acssensors.1c02378. Epub 2022 Jan 24" |
