2,4,6‐Trinitrotoluene (TNT) Chemical Sensing Based on Aligned Single‐Walled Carbon Nanotubes and ZnO Nanowires

Abstract

Nanotube/nanowire chemical sensors have attracted significant attention for the detection of explosives and nerve agents. We report TNT sensors based on aligned carbon nanotubes transferred onto fabric as prototype wearable sensors, with an excellent sensitivity down to 8 ppb at room temperature. In addition, we also fabricated TNT sensors based on ZnO nanowires with a detection limit of 40 ppb at room temperature. Those sensors have great potential for electronic nose systems.

Electrospun Fluorescent Nanofibers for Explosive Detection

“…This necessitates a need to develop a novel and modernistic method to fabricate a solid template-based sensor on a large scale for technological applications. A very few methods effectively demonstrated the sensing permanence of TNT in real time application [16,[26][27][28][29][30][31][32][33][34][35][36]. For example Daming Gao reported a resonance energy transfer-amplifying fluorescence quenching at the surface of silica nanoparticles for the ultrasensitive detection of TNT in solution and vapor environments [17].…”

Hyper-branch sensing polymer batch self-assembled on resonant micro-cantilevers with a coupling-reaction route

“…Nowadays, chemical gas sensors have attracted intensive attention and show promising applications in broad fields such as environment monitoring, hazard gas detection and bio-medical early-stage diagnosis [1][2][3][4][5][6][7][8][9]. Among various types of gas sensors, resonant micro-cantilevers are advantageous in ultra-high sensitivity, miniaturized size and facile integration with signalacquisition circuit [10][11][12][13][14][15][16][17][18][19].…”

Short channel carbon nanotube thin film transistors with high on/off ratio fabricated by two-step fringing field dielectrophoresis

“…The feasibility of these applications has been proved by researchers in recent years [4][5][6][7]. Though many methods have been reported for CNT thin film preparation [8][9][10][11][12], the most commonly used is solution deposition [8,9].…”