Published January 1, 2010
| Version v1
Journal article
Open
A superamplification effect in the detection of explosives by a fluorescent hyperbranched poly(silylenephenylene) with aggregation-enhanced emission characteristics
Description
Sensors based on fluorescent conjugated polymers (FCPs) have attracted much attention, due to their amplified response and superior sensitivity to analytes, in comparison to their low molar mass congeners.1 Among many potential applications of FCPs, the detection of explosives is of great current interest because of its anti-terrorism implications.2 Much effort has been devoted to the development of linear FCPs with an amplification effect for sensitive detection of explosives. It has been shown that a FCP with a fast rate of exciton migration over a long sequence of its repeat units along the one-dimensional (1D) chain affords a high sensitivity (Fig. 1A).1 The sensing performance of the FCP, however, is often deteriorated by the aggregation of its linear chains. This notorious aggregation-caused quenching (ACQ) effect interferes with the detection of the analytes that induce the polymer chains to aggregate in solutions.
Files
article.pdf
Files
(266.1 kB)
| Name | Size | Download all |
|---|---|---|
|
md5:28476200d5a6423183ce2876c90d7084
|
266.1 kB | Preview Download |