Synthesis of a novel water-soluble conjugated polyelectrolyte based on polycyclopentadithiophene backbone and its application for heparin detection

Zhu, Xiangwei; Guo, Wenjuan; Li, Huizhi; Zhang, Guangyou; Pei, Meishan; Wang, Luyan; Feng, Jiwen

doi:10.1080/15685551.2014.907616

Cited by 3 publications

(1 citation statement)

References 26 publications

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“…Fluorescent conjugated polymers (CPs) are one of the optical probe organic materials [ 19–23 ], which show excellent sensitivity in ion recognition due to their optical signal amplification properties [ 24 , 25 ]. In 2020, Maimaitiyiminget al designed and synthesized a pyrimidine group containing conjugated polymer, in which it showed excellent optical properties for specific recognition of Hg 2+ and I − [ 26 ].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of carbazole-based dendritic conjugated polymer: a dual channel optical probe for the detection of I⁻ and Hg²⁺

Zhang

et al. 2022

Designed Monomers and Polymers

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A new type of carbazole-based blue-emitting dendritic conjugated polymer, poly[(9,9-dioctyl)-2,7-fluorene-co-4,4’,4”-triphenylamine-co-9-(4-(9H-carbazol-9-yl)butyl)-3,6-carbazole](P), was successfully synthesized by Suzuki coupling reaction. Chemical structures of monomers and polymer were verified by FI-IR and 1 HNMR characterizations. We found that polymer showed a special selectivity and high sensitivity for I − . With the addition of I − , the fluorescent polymer solution was obviously quenched. The polymer showed a special detection effect on I − . However, the fluorescent polymer was obviously restored when Hg 2+ was added to the P/I − system due to the large complexation between I − and Hg 2+ . The anti-interference experiments of probe P/I − showed that other background cations have a slight influence on detecting Hg 2+ , and the calculated detection limit of Hg 2+ reached 9.7 × 10 −8 M, which could be a potential application for a two-channel cyclic detection of I − and Hg 2+ . Additionally, it was found that the theoretical values were in agreement with the experimental data.

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Section: Introductionmentioning

confidence: 99%

Synthesis of carbazole-based dendritic conjugated polymer: a dual channel optical probe for the detection of I⁻ and Hg²⁺

Zhang

et al. 2022

Designed Monomers and Polymers

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Cationic Conjugated Polyelectrolytes with Aggregation‐Induced Ratiometric Fluorescence

Mei

Zhao

et al. 2022

Macromol. Rapid Commun.

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The molecular diversity of aggregation-induced emission remains a challenge due to the limitation of conventional synthesis methods. Here, a series of novel neutral and cationic conjugated polymers composed of various ratios of tetraarylethylene (TAE) containing a bridged oxygen (O) and fluorene (F) units is designed and synthesized via the geminal cross-coupling (GCC) of 1,1-dibromoolefins. The incorporation of TAE segments into the conjugated backbone of polyfluorene produces pronounced aggregation-induced ratiometric fluorescence, i.e., aggregation-induced emission (AIE) at 520-600 nm and grows synergistically with aggregations-caused quenching (ACQ) at 400-450 nm. The content of fluorene unit in the polymer backbones determines the intensity of the initial fluorescence in the blue light region. The huge distinction (about 150 nm) in dual emission wavelengths caused by the environment change makes these conjugated polyelectrolytes particularly suitable for ratiometric fluorescence sensing. Based on electrostatic interaction mechanism, the gradual addition of heparin into the cationic conjugated polymers aqueous solutions can induce dual-color fluorescence changes with a detection limit of 9 × 10 −9 m. This work exhibits the great facility of using GCC reaction to synthesis the conjugated TAE polymers with superior AIE properties and special functions.

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Fluorescent thiophene-based materials and their outlook for emissive applications

2015

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Although thiophene-based materials are among the most widely studied conjugated materials for a number of technological applications, most discussions of emissive conjugated materials have focused on other systems, primarily due to the lower emission quantum yields of thiophene-based systems. Over the last decade, however, this has begun to change with the development of new highly emissive thiophene-based materials. In this review, we provide an overview of fluorescent thiophene-based materials and their applications, highlighting in particular the various methods employed to achieve highly emissive materials, as well as a variety of reported applications including fluorescent biomarkers and organic light emitting diodes.

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Synthesis of a novel water-soluble conjugated polyelectrolyte based on polycyclopentadithiophene backbone and its application for heparin detection

Cited by 3 publications

References 26 publications

Synthesis of carbazole-based dendritic conjugated polymer: a dual channel optical probe for the detection of I⁻ and Hg²⁺

Synthesis of carbazole-based dendritic conjugated polymer: a dual channel optical probe for the detection of I⁻ and Hg²⁺

Cationic Conjugated Polyelectrolytes with Aggregation‐Induced Ratiometric Fluorescence

Fluorescent thiophene-based materials and their outlook for emissive applications

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Synthesis of a novel water-soluble conjugated polyelectrolyte based on polycyclopentadithiophene backbone and its application for heparin detection

Cited by 3 publications

References 26 publications

Synthesis of carbazole-based dendritic conjugated polymer: a dual channel optical probe for the detection of I− and Hg2+

Synthesis of carbazole-based dendritic conjugated polymer: a dual channel optical probe for the detection of I− and Hg2+

Cationic Conjugated Polyelectrolytes with Aggregation‐Induced Ratiometric Fluorescence

Fluorescent thiophene-based materials and their outlook for emissive applications

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Product

Resources

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Synthesis of carbazole-based dendritic conjugated polymer: a dual channel optical probe for the detection of I⁻ and Hg²⁺

Synthesis of carbazole-based dendritic conjugated polymer: a dual channel optical probe for the detection of I⁻ and Hg²⁺