Detection of trace explosives is of great concern for homeland security,battlefield protection,and industrial and environmental safety control.Fluorescence quenching based sensing has proven to be one of the most promising approaches for trace explosives detection.This review is focused on examples reported by Porf.Ling Zang's group and Prof.William Trogler's group related to fluorescence quenching sensors based on one-dimensional small molecular nanomaterials,fluorescent coordination polymers (or metal-organic frameworks) and polysiloles.It is also introduced the use of organic semiconductors,such as phthalocyanine thin films and perylene diimide nanowires,to construct electronic sensors for trace explosive sensing.
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