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Formation and properties of self-assembly-driven fluorescent nanoparticle sensors.

Type of publication Peer-reviewed
Publikationsform Original article (peer-reviewed)
Publication date 2013
Author Cui Kun, Lu Xuemin, Guan Junfang, Lu Qinghua, Fei Zhaofu, Dyson Paul J,
Project Functionalised ionic liquids for catalysis and other applications
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Original article (peer-reviewed)

Journal Chemistry (Weinheim an der Bergstrasse, Germany)
Volume (Issue) 19(26)
Page(s) 8550 - 7
Title of proceedings Chemistry (Weinheim an der Bergstrasse, Germany)
DOI 10.1002/chem.201204349

Abstract

Fluorescent nanoparticles (FNPs) are obtained in water by self-assembly from a polymeric ionic liquid, fluorescent carboxylate moiety, and a surfactant through two main supramolecular interactions, that is, ionic bonds and hydrophobic/hydrophilic interactions. The hydrophobicity of the surfactant is tunable and a highly hydrophobic surfactant increases the fluorescence intensity and stability of the FNPs. The fluorescence of the FNPs is sensitive to a quenching effect by various ions with high selectivity, and consequently, they may be used as sensors. The self-assembly approach used to generate the FNPs is considerably simpler than other methods based on more challenging synthetic methods and the flexibility of the approach should allow a wide and diverse range of FNPs to be prepared with specific sensor applications.
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