A Dual Sensing Platform for Human Exhaled Breath Enabled by Fe‐MIL‐101‐NH2 Metal–Organic Frameworks and its Derived Co/Ni/Fe Trimetallic Oxides

• DOI: 10.1002/smll.202203715
• Publication Date: 2022-09-05T01:35:40Z
• Authors: Shuang Cao; Yifeng Xu; Zhongzheng Yu; Peng Zhang; Xiaoyi Xu; Ning Sui; Tingting Zhou; Tong Zhang
• Keywords: Quartz Crystal Microbalance

Abstract Limited by the insufficient active sites and interference from breath humidity, designing reliable gas sensing materials with high activity moisture resistance remains a challenge to analyze human exhaled for translational application of medical diagnostics. Herein, dual cooperative diagnosis is achieved utilizing metal‐organic frameworks (MOFs) its derivative. The Fe‐MIL‐101‐NH 2 serves as quartz crystal microbalance humidity layer, which exhibits selectivity rapid response time (16 s/15 s) water vapor. Then, Co 2+ Ni cations are further co‐doped into host obtain derived Co/Ni/Fe trimetallic oxides (CoNiFe‐MOS‐ n ). chemiresistive CoNiFe‐MOS‐ sensor displays sensitivity (560) good acetone, together lower original compared Fe O 3 NiFe 4 . Moreover, proof‐of‐concept application, synergistic integration carried out. applied sorbent materials, realize compensation sensors detection acetone (biomarker diabetes). findings provide an insight effective utilization MOFs achieve trace in analysis.