Selective and sensitive fluorescent sensors for metal ions based on manipulation of side-chain compositions of poly(p-phenyleneethynylene)s
Document Type
Article
Publication Date
11-1-2004
Abstract
The syntheses and metal-responsive properties of poly-(p- phenyleenethynylene)s with grafted new pseudo-crown-ether groups are reported. These polymers exhibit high sensitivities to alkali ions because of their collective optical properties, which are very sensitive to ion-induced conformational changes. The quenching of polymer fluorescence caused by the conformational changes is proportional to the ion concentration. The selectivity of the sensing materials toward Li+ ions is significantly enhanced by controlling the size of the binding site via manipulation of the polymer side-chain compositions. The polymers are very stable for their six-month solid-state storage at room temperature.
Publication Title
Analytical Chemistry
Recommended Citation
Chen, Z.,
Xue, C.,
Shi, W.,
Luo, F.,
Green, S.,
Chen, J.,
&
Liu, H.
(2004).
Selective and sensitive fluorescent sensors for metal ions based on manipulation of side-chain compositions of poly(p-phenyleneethynylene)s.
Analytical Chemistry,
76(21), 6513-6518.
http://doi.org/10.1021/ac049163m
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/7786
