Please use this identifier to cite or link to this item: https://doi.org/10.1002/marc.200800727
Title: Amplified fluorescence turn-on assay for mercury(II) detection and quantification based on conjugated polymer and silica nanoparticles
Authors: Wang, Y.
Liu, B. 
Keywords: Conjugated polymers
Fluorescence
Mercury (II)
Nanoparticles
Sensors
Silicas
Issue Date: 1-Apr-2009
Citation: Wang, Y., Liu, B. (2009-04-01). Amplified fluorescence turn-on assay for mercury(II) detection and quantification based on conjugated polymer and silica nanoparticles. Macromolecular Rapid Communications 30 (7) : 498-503. ScholarBank@NUS Repository. https://doi.org/10.1002/marc.200800727
Abstract: An amplified fluorescence turn-on assay for mercury(II) detection and quantification was developed. This method makes use of specific thymine/mercury(II)/thymine coordination to capture F1-iabeled DMA onto MP surface. Addition of a cationic conjugated polymer leads to an amplified F1 signal in solution. A sigmoidal Hg2+ working curve is obtained at fixed [NP] with a detection limit of 0.1 × 10-6 m. However, by reducing [Hg2+] and [NP] simultaneously, while maintaining [Hg 2+]:[DNA duplex] = 3:1, a linear calibration curve is observed with a detection limit of 5 × 10-9 m. The CCP-assisted mercury(II) assay shows potential applications in environmental mercury detection and for industrial process control. © 2009 WILEY-VCH Verlag GmbH & Co. KGaA.
Source Title: Macromolecular Rapid Communications
URI: http://scholarbank.nus.edu.sg/handle/10635/88522
ISSN: 10221336
DOI: 10.1002/marc.200800727
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