Practical ppb-Level Room Temperature Chemiresistive Nitric Oxide Sensing Assembly Based on Ultrathin Thick Porphyrin MOF Nanosheets.

• Tác giả: Yanwei Chang, Zhuo Chen, Yancong Feng, Patrick J French, Zijing Fu, Yixun Gao, Hao Li, Tao Ren, Ahmad Mohammad Umar Siddiqui, Fengnan Wang, Yao Wang, Huiming Xie, Guofu Zhou
• Ngôn ngữ: eng
• Ký hiệu phân loại: 771.4 Darkroom and laboratory practice
• Thông tin xuất bản: Germany : Small (Weinheim an der Bergstrasse, Germany) , 2025
• Bộ sưu tập: NCBI
• ID: 658641
• Chủ đề: 1. Practical; 2. Ppb; 3. Level

Tóm tắt

Nitric oxide is an endogenous biological signaling molecule, and the corresponding fractional exhaled NO serves as an important indicator in clinical diagnostics and therapeutic applications. However, achieving accurate and rapid monitoring of ppb-level fractional exhaled nitric oxide (FeNO) at room temperature remains a significant challenge. Herein, ultrathin porphyrin metal-organic framework (MOF) sheets are selected to assemble with supramolecularly functionalized graphene sheets through hydrogen bonding and electrostatic interaction with 6 nm thickness. The resulting porphyrin MOF/graphene sheet-on-sheet nanohybrid is designed as a chemiresistive NO sensor which exhibits superior gas sensing performance at room temperature including an ultralow practical limit of detection (R