pp. 2669-2677
S&M1708 Research Paper of Special Issue https://doi.org/10.18494/SAM.2018.2015 Published: November 30, 2018 Amino Monolayer Modified Nanowire Array for Trinitrotoluene Detection [PDF] Xingqi Liu, Shixing Chen, Hui Wang, Anrao Gao, Yuelin Wang, Tie Li, Hongpeng Zhang, Zhiping Huang, and Zhenxing Cheng (Received May 31, 2018; Accepted August 10, 2018) Keywords: MALDI-MS, polyphenols, visualization
In this paper, we reported a homemade silicon chemical sensor of arranged silicon nanowires for the detection of 2,4,6-trinitrotoluene (TNT) explosive, where the key sensor structure surface has been successfully modified into an amino monolayer with (3-aminopropyl)-dimethylethoxysilane (APDMES) through molecular oligomerization in a self-assembled manner. The sensor can easily and rapidly detect both TNT dissolved in the liquid phase from 5 fM to 50 pM and TNT vapor in air approximately at about 1 ppb. More importantly, the sensors showed a rather lower response sensitivity to several TNT analogs than to TNT.
Corresponding author: Zhenxing Cheng, Tie LiCite this article Xingqi Liu, Shixing Chen, Hui Wang, Anrao Gao, Yuelin Wang, Tie Li, Hongpeng Zhang, Zhiping Huang, and Zhenxing Cheng, Amino Monolayer Modified Nanowire Array for Trinitrotoluene Detection, Sens. Mater., Vol. 30, No. 11, 2018, p. 2669-2677. |