Fluorescent sensors for nitroaromatic compounds based on monolayer assembly of polycyclic aromatics.
Fluorescent sensors for nitroaromatic compounds based on monolayer assembly of polycyclic aromatics.
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DOI：
10.1021/la062773s
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发表时间：
2007-01
期刊：
影响因子：
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通讯作者：
Shujuan Zhang;Fengting Lü;Lining Gao;Liping Ding;Yu Fang
中科院分区：
文献类型：
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作者：
Shujuan Zhang;Fengting Lü;Lining Gao;Liping Ding;Yu Fang
一类荧光膜，其中芘组装，以单层的方式，通过各种不同长度和亚结构的柔性间隔在玻璃载玻片表面被用于检测气相中的硝基芳香族化合物（NAC）。这种设计策略为薄膜荧光传感材料提供了几个优点。这些优点已经通过薄膜对气相中痕量NAC的存在的敏感响应实验证明。膜在暴露于NAC蒸气时的荧光猝灭取决于若干因素，包括检测到的NAC的蒸发速率、连接感测元件和基板表面的间隔物的长度以及基板表面上的感测元件的密度。进一步的实验表明，传感过程是可逆的，没有常见的干扰。敏感的响应，传感过程的可逆性，以及从通常遇到的专门设计的膜的干扰NAC的自由资格这些材料作为有前途的NAC荧光传感材料。
A class of fluorescent films in which pyrene was assembled, in a monolayer manner, on glass slide surfaces via various flexible spacers of different lengths and substructures was used for the detection of nitroaromatic compounds (NACs) in vapor phase. This design strategy offers several advantages for thin film fluorescent sensory materials. These advantages have been demonstrated experimentally by the sensitive response of the films to the presence of trace amounts of NACs in vapor phase. The fluorescence quenching of the films upon exposure to NACs vapors depends on several factors, including the evaporate rate of the NAC detected, the length of the spacers connecting the sensing element and the substrate surface, and the density of the sensing element on the substrate surface. Further experimentation showed that the sensing process is reversible and free of commonly encountered interference. The sensitive response, reversibility of the sensing process, and freedom from commonly encountered interference of the specially designed films to NACs qualify these materials as promising NACs fluorescent sensory materials.