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The detection of improvised nonmilitary peroxide based explosives using a titania nanotube array sensor

机译:使用二氧化钛纳米管阵列传感器检测简易的非军事过氧化物炸药

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There is a critical need to develop an efficient, reliable and highly selective sensor for the detection of improvised nonmilitary explosives. This paper describes the utilization of functionalized titania nanotube arrays for sensing improvised organic peroxide explosives such as triacetone triperoxide (TATP). TATP forms complexes with titania nanotube arrays (prepared by anodization and sensitized with zinc ions) and thus affects the electron state of the nanosensing device, which is signaled as a change in current of the overall nanotube material. The response is rapid and a signal of five to eight orders of magnitude is observed. These nanotube array sensors can be used as hand-held miniaturized devices as well as large scale portable units for military and homeland security applications.
机译:迫切需要开发一种高效,可靠和高度选择性的传感器,以检测简易非军事爆炸物。本文介绍了功能化的二氧化钛纳米管阵列在感测简易的有机过氧化物炸药(如三丙酮三过氧化物)中的应用。 TATP与二氧化钛纳米管阵列形成复合物(通过阳极氧化制备并用锌离子敏化),因此会影响纳米传感装置的电子状态,这表示为整个纳米管材料电流的变化。响应很快,观察到的信号为五到八个数量级。这些纳米管阵列传感器可以用作手持微型设备,以及用于军事和国土安全应用的大规模便携式装置。

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