An artificial olfactory sensor based on flexible metal-organic frameworks for sensing VOCs

被引：48

作者：

Chen, Huayun ^{[1
,2
]}

You, Zhiheng ^{[1
,2
]}

Wang, Xiao ^{[1
,2
]}

Qiu, Qimin ^{[1
,2
]}

Ying, Yibin ^{[1
,2
]}

Wang, Yixian ^{[1
,2
]}

机构：

[1] Zhejiang Univ, Sch Biosyst Engn & Food Sci, Hangzhou 310058, Peoples R China

[2] Key Lab Intelligent Equipment & Robot Agr Zhejiang, Zhejiang 310058, Peoples R China

来源：

CHEMICAL ENGINEERING JOURNAL | 2022年 / 446卷

基金：

中国国家自然科学基金;

关键词：

Colorimetric sensor array; Flexible metal-organic frameworks; Low-reactive VOCs; Plant VOCs; ADSORPTION; ROBUST; ARRAY; MOF;

D O I：

10.1016/j.cej.2022.137098

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

An artificial olfactory sensor using seven flexible metal-organic frameworks (MOFs) was designed to detect volatile organic compounds (VOCs) with high selectivity. Owing to its unique colorimetric mechanism, the flexible-MOF-based colorimetric sensor array enables the detection of less-reactive VOCs to which conventional dyes are insensitive. In addition, the flexible MOFs show excellent reversibility toward various VOCs, reusability for repeated cycles toward a single VOC, and storage stability under different humidity and time conditions. Furthermore, the flexible MOF sensor array demonstrates the potential to identify late blight in the tomato crop via the differentiation of the composition of VOCs released by Phytophthora infestans (P. infestans)-infected leaves and those of a healthy control.

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页数：8

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