Electrosynthesis, characterization and optical sensing application of amino acid functionalized polyfluorene

Zhang, Hui; Zhang, Ge; Xu, Jingkun; Wen, Yangping; Ding, Waverly W.; Zhang, Jie; Ming, Shouli; Zhen, Shijie

doi:10.1007/s10118-016-1742-3

Cited by 15 publications

(10 citation statements)

References 52 publications

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“…The LOD of AHNSA-PPy was 1.4 nM for detecting Cr 6+ . In addition, our group reported two CP sensors PFOLS and P9FG, and they could be used as sensing materials to construct Cr 2 O 7 2– fluorescent sensors successfully. The LODs of PFOLS and P9FG were 72 and 0.06 pM, respectively.…”

Section: Introductionmentioning

confidence: 99%

Amino Acid Groups Enable Electrosynthesized Polyfluorenes to Specifically Recognize Cr₂O₇^2–

Zhang

Zou

et al. 2022

ACS Appl. Polym. Mater.

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The unique “molecular wire effect” property of conjugated polymers (CPs) enables them to own signal amplification. Therefore, they are good candidates for constructing fluorescent sensors with high sensitivity. In this work, two water-soluble polyfluorene derivatives P(Fmoc-Arg-OH) and P(Fmoc-Glu-OH) were synthesized using electrochemical polymerization in boron trifluoride diethyl etherate–trifluoroacetic systems. Absorption and emission spectra showed that the two polymers were blue emitters. In order to specifically target dichromate ions (Cr2O7 2–), we introduced amino acid groups in the side chain of the two polymers. A series of selective and competitive experiments in a pH = 7.00 PBS solution showed that both polymers had high selectivity toward Cr2O7 2–. Thanks to their signal amplification effect, the limits of detection of P(Fmoc-Arg-OH) and P(Fmoc-Glu-OH) could reach 16.67 pM and 3.33 μM, respectively. All results showed that CPs are a good platform for designing fluorescent sensors with high selectivity and sensitivity.

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Section: Introductionmentioning

confidence: 99%

Amino Acid Groups Enable Electrosynthesized Polyfluorenes to Specifically Recognize Cr₂O₇^2–

Zhang

Zou

et al. 2022

ACS Appl. Polym. Mater.

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“…However, there are few reports on CL probes for selectively detecting ClO − . [16][17][18] Owing to their excellent optical signal amplification and light capture characteristics, conjugated polymers (CPs) are widely used in DNA sensing, 19 cell imaging, 20,21 in vivo imaging, 19 and photoacoustic imaging. 22 CPs consist of two major compartments: conjugated backbones and multifunctional side chains.…”

Section: Introductionmentioning

confidence: 99%

A bright chemiluminescence conjugated polymer–mesoporous silica nanoprobe for imaging of colonic tumors in vivo

Zhu

Han

et al. 2022

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“…The methylene bridge (C9 position) in fluorene structure provides an easy modification or functionalization. For instance, an amino acid side chain functionalized polyfluorene derivative poly[N-(9-fluorenylmethoxycarbonyl)-glycine] (P9FG) was synthesized and used in sensing applications [15]. Fluorene derivatives have also been prepared with poly(ethylene glycol) (PEG) via attaching to the carboxylic acid containing 9-position of fluorene in order to enhance the sensing properties of the biosensor.…”

Section: Introductionmentioning

confidence: 99%

A new ethanol biosensor based on polyfluorene-g-poly(ethylene glycol) and multiwalled carbon nanotubes

Bekmezci

Söylemez

Yılmaz

et al. 2020

European Polymer Journal

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Functionalization of the conjugated polymers has gained considerable interest in the biomedical engineering and biosensing applications as distinct properties can be imparted to the corresponding pristine analogues. In the present work, we report a novel sensing platform for the quantification of ethanol through a macromolecular design involving polyfluorene-g-poly(ethylene glycol) (PF-g-PEG) and multiwalled carbon nanotubes (MWCNTs). First, poly(ethylene glycol) with fluorene functionality (PEG-FL) was synthesized with a one-step procedure and characterized. The nanotube modified electrodes were then used as working electrodes for the electropolymerization of PEG-FL macromonomer to form PF-g-PEG films on the electrode surface. Finally, alcohol oxidase enzyme was immobilized on the modified surfaces. Similar devices without MWCNTs or PF-g-PEG were prepared and compared. Sensor properties for selective ethanol detection were investigated and it was found that PF-g-PEG modified MWCNTs exhibited the highest sensing ability. The potential practical application of the fabricated biosensor is demonstrated in alcoholic drinks for the analysis of ethanol contents.

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Electrosynthesis, characterization and optical sensing application of amino acid functionalized polyfluorene

Cited by 15 publications

References 52 publications

Amino Acid Groups Enable Electrosynthesized Polyfluorenes to Specifically Recognize Cr₂O₇^2–

Amino Acid Groups Enable Electrosynthesized Polyfluorenes to Specifically Recognize Cr₂O₇^2–

A bright chemiluminescence conjugated polymer–mesoporous silica nanoprobe for imaging of colonic tumors in vivo

A new ethanol biosensor based on polyfluorene-g-poly(ethylene glycol) and multiwalled carbon nanotubes

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Electrosynthesis, characterization and optical sensing application of amino acid functionalized polyfluorene

Cited by 15 publications

References 52 publications

Amino Acid Groups Enable Electrosynthesized Polyfluorenes to Specifically Recognize Cr2O72–

Amino Acid Groups Enable Electrosynthesized Polyfluorenes to Specifically Recognize Cr2O72–

A bright chemiluminescence conjugated polymer–mesoporous silica nanoprobe for imaging of colonic tumors in vivo

A new ethanol biosensor based on polyfluorene-g-poly(ethylene glycol) and multiwalled carbon nanotubes

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Amino Acid Groups Enable Electrosynthesized Polyfluorenes to Specifically Recognize Cr₂O₇^2–

Amino Acid Groups Enable Electrosynthesized Polyfluorenes to Specifically Recognize Cr₂O₇^2–