| Title: | Colorimetric Multigas Sensor Arrays and an Artificial Olfactory Platform for Volatile Organic Compounds |
| Author(s): | Im H; Choi J; Lee H; Al Balushi ZY; Park DH; Kim S; |
| Address: | "Department of Materials Science and Engineering, University of California, Berkeley, California 94720, United States. School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon-Si, Gyeonggi-do 16419, Republic of Korea. Department of Chemical Engineering, Inha University, Incheon 22212, Republic of Korea. Program in Biomedical Science and Engineering, Inha University, Incheon 22212, Republic of Korea" |
| DOI: | 10.1021/acssensors.3c00350 |
| ISSN/ISBN: | 2379-3694 (Electronic) 2379-3694 (Linking) |
| Abstract: | "Herein, we develop colorimetric multigas sensor arrays assembling chemo-reactive fluorescent patch arrays and 10 x 10 indium gallium zinc oxide phototransistor arrays and apply them to an artificial olfactory platform to recognize five different volatile organic compounds (VOCs). Porous nanofibers, coupled with two organic emitters and emitting fluorescence, rapidly respond to gas-phased VOCs and offer unique fluorescent patterns associated with particular gas conditions, including gas kinds, concentrations, and exposure times by forming patch arrays with different fluorophore component ratios. These VOC-induced fluorescent patterns could be quantified and amplified by indium gallium zinc oxide (IGZO) phototransistor arrays functioning as a signal-generating component, resulting in gas-fingerprint patterns regarding electrical signals. Thus, the pattern library associated with VOCs and their concentration enables us to determine each airborne analyte as the artificial olfactory platform. Therefore, this system could achieve rapid, early quantitative recognition of hazardous gases and be applied as a preventative, portable, and wearable multigas identifier in various fields" |
| Keywords: | *Volatile Organic Compounds Colorimetry Indium *Zinc Oxide Fluorescent Dyes *Gallium Gases artificial olfaction colorimetric analysis colorimetric olfaction multigas sensors photo amplifier; |
| Notes: | "MedlineIm, Healin Choi, Jinho Lee, Hyeyun Al Balushi, Zakaria Y Park, Dong-Hyuk Kim, Sunkook eng Research Support, Non-U.S. Gov't 2023/08/29 ACS Sens. 2023 Sep 22; 8(9):3370-3379. doi: 10.1021/acssensors.3c00350. Epub 2023 Aug 29" |
