Optical Detection of Mercury(II) in Aqueous Solutions by Using Conjugated Polymers and Label‐Free Oligonucleotides

Liu, X.; Tang, Yi; Wang, L.; Zhang, Ji Ping; Song, Shanjun; Fan, Cuncai; Wang, Shengzhe

doi:10.1002/adma.200790049

Cited by 39 publications

(27 citation statements)

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“…Fan and coworkers (85) employed a water-soluble, cation-conjugated polymer and a T-rich DNA probe to develop a turn-on, label-free fluorescent Hg 2+ biosensor. In the absence of Hg 2+ , the cation-conjugated polymer and the random coil–like DNA probe formed an electrostatic complex with a characteristic red color and a weak fluorescence.…”

Section: Biosensors Based On Metal Ion–stabilized Dna Mismatchesmentioning

confidence: 99%

Metal Ion Sensors Based on DNAzymes and Related DNA Molecules

Zhang

Kong

Lu³

2011

Annual Rev. Anal. Chem.

328

252

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Metal ion sensors are an important yet challenging field in analytical chemistry. Despite much effort, only a limited number of metal ion sensors are available for practical use because sensor design is often a trial-and-error-dependent process. DNAzyme-based sensors, in contrast, can be developed through a systematic selection that is generalizable for a wide range of metal ions. Here, we summarize recent progress in the design of DNAzyme-based fluorescent, colorimetric, and electrochemical sensors for metal ions, such as Pb2+, Cu2+, Hg2+, and UO22+ In addition, we also describe metal ion sensors based on related DNA molecules, including T-T or C-C mismatches and G-quadruplexes.

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Section: Biosensors Based On Metal Ion–stabilized Dna Mismatchesmentioning

confidence: 99%

Metal Ion Sensors Based on DNAzymes and Related DNA Molecules

Zhang

Kong

Lu³

2011

Annual Rev. Anal. Chem.

328

252

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“…Among the variety of available probing platforms for the detection of Hg 2+ [5][6][7][8][9][10], optical probes have drawn special concern due to the advantages they have, such as high selectivity, low detection limit, simplicity in sample preparation and real-time applicability, etc [11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Sulfur-containing, triphenylamine-based red-emitting conjugated polymer/I− assembly as turn-on optical probe for mercury(II) ion

Shi

Xie

2015

Sensors and Actuators B: Chemical

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“…An additional advantage of using polymer as sensor materials emerge from the modular nature of polymers; that is, the structure and sequence of the repeating units within polymers can be widely varied and modified, which allows the polymers to be tailored to suit for diverse targets and potentially achieve high selectivity. Therefore, conjugated polymers can be used as an optical platform in highly selective chemical and biological sensors [94][95][96][97] . Recently, a variety of conjugated polymers containing molecular recognition sites have been reported as sensing materials for metal ions [98,99] .…”

Section: Chemosensors Based On Fluorescent Conjugated Polymersmentioning

confidence: 99%

Chemical sensors based on π-conjugated organic molecules and gold nanoparticles

Yuan

Liu

et al. 2009

Sci. China Ser. B-Chem.

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Scientists have developed techniques for synthesizing and characterizing many new materials including conjugated small molecules, polymers and gold particles protected by conjugated organic chromophores for testing specific sensing properties in the past decade. Still, the design and synthesis or supermolecular systems fabrication of novel materials with controlled sensing properties is a significant and ongoing challenge within nanoscience and nanotechnology. Recently, our group has successfully constructed a series of chemosensors using small organic molecules, conjugated polymers and gold nanoparticles for real-time detection of specific analytes. The chemosensors show high selectivity and sensitivity in the detection of cations and biologic analytes and thus are potentially promising for applications in sensing assay system. In this review, recent sutdies on the design, synthesis and photo-physical properties of novel materials and construct of chemosensors are summarized with an emphasis on the development in our groups in recent years. energy transfer, charge transfer, nanotechnology, organic-inorganic hybrid composites.

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Optical Detection of Mercury(II) in Aqueous Solutions by Using Conjugated Polymers and Label‐Free Oligonucleotides

Cited by 39 publications

References 0 publications

Metal Ion Sensors Based on DNAzymes and Related DNA Molecules

Metal Ion Sensors Based on DNAzymes and Related DNA Molecules

Sulfur-containing, triphenylamine-based red-emitting conjugated polymer/I− assembly as turn-on optical probe for mercury(II) ion

Chemical sensors based on π-conjugated organic molecules and gold nanoparticles

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