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This paper describes a system for the detection of nitroaromatic explosives consisting of a portable detector based on a specific fluorescent material. The developed sensor was able to perform an ultra trace detection of explosives, such as trinitrotoluene (TNT) or its derivate 2,4-dinitrotoluene (DNT), in ambient air or on objects tainted with explosives. In the presence of nitroaromatic vapors,...
Today, most of the DNA chips are used with fluorescent markers. Associated with fluorescence confocal scanners, this technology achieves remarkable performances in terms of sensitivity and accuracy. The main technical issues related to these scanners have already been reviewed. However, these scanners are costly, especially when high density chips are used. In this case, a mechanical precision of...
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