The synthesis of amphiphilic pillar[5]arene functionalized reduced graphene oxide and its application as novel fluorescence sensing platform for the determination of acetaminophen

Zhao, Genfu; Yang, Long; Wu, Shilian; Zhao, Hui; Tang, E.; Li, Can-Peng

doi:10.1016/j.bios.2017.01.053

Cited by 59 publications

(22 citation statements)

References 24 publications

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“…While the fluorescence intensity of AO decreases with PCP6 via host-guest recognition interactions (Figure S10), the fluorescence intensity of AO quenching is mainly caused by PCP6-rGO based on the outstanding fluorescent quenching performance of rGO. The fluorescence quenching of the dye is caused by the fluorescence resonance energy transfer (FRET) between dye and graphene [32,33]. The host–guest recognition between PCP6 and AO was studied by UV-vis and shown in Figure S11.…”

Section: Resultsmentioning

confidence: 99%

“…The PCP6-rGO composite was synthesized by heating and stirring the GO suspension under strong alkaline conditions in the presence of sodium citrate and PCP6 [32,33]. GO (20 mg) was dispersed in a solution of PCP6 (20 mg) and sodium citrate (100 mg) in DW (50 mL) by sonication, and the mixture pH was adjusted to 12 by NaOH solution (1 M) and stirred at 90 °C for 5 h. The black dispersion of PCP6-rGO was separated by centrifuging with 13,000 rpm for 1 h and washed with DW three times to obtain PCP6-rGO composite.…”

Section: Methodsmentioning

confidence: 99%

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A Fluorescence Sensing Determination of 2,4,6-Trinitrophenol Based on Cationic Water-Soluble Pillar[6]arene Graphene Nanocomposite

Tan

Zhang

Zeng

et al. 2018

Sensors

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We describe a selective and sensitive fluorescence platform for the detection of trinitrophenol (TNP) based on competitive host–guest recognition between pyridine-functionalized pillar[6]arene (PCP6) and a probe (acridine orange, AO) that used PCP6-functionalized reduced graphene (PCP6-rGO) as the receptor. TNP is an electron-deficient and negative molecule, which is captured by PCP6 via electrostatic interactions and π–π interactions. Therefore, a selective and sensitive fluorescence probe for TNP detection is developed. It has a low detection limit of 0.0035 μM (S/N = 3) and a wider linear response of 0.01–5.0 and 5.0–125.0 for TNP. The sensing platform is also used to test TNP in two water and soil samples with satisfying results. This suggests that this approach has potential applications for the determination of TNP.

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

A Fluorescence Sensing Determination of 2,4,6-Trinitrophenol Based on Cationic Water-Soluble Pillar[6]arene Graphene Nanocomposite

Tan

Zhang

Zeng

et al. 2018

Sensors

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show abstract

“…The PCP6-rGO composite was synthesized by heating and stirring the GO suspension under strong alkaline conditions in the presence of sodium citrate and PCP6. [55][56][57] The GO (20 mg) was dispersed in a solution of PCP6 (20 mg) and sodium citrate…”

Section: Synthesis Of the Pcp6-rgo Hybrid Materialsmentioning

confidence: 99%

“…The AO Preprints (www.preprints.org) | NOT PEER-REVIEWED | Posted: 28 November 2018 Preprints (www.preprints.org) | NOT PEER-REVIEWED | Posted: 28 November 2018 doi:10.20944/preprints201811.0605.v1is also incubated with PCP6-rGO to form an AO@PCP6-rGO complex that is attached to the rGO. This is accompanied by indicator fluorescence 'turn off' due toFRET [50,55,57]. Some control experiments are performed to confirm that the observed fluorescent intensity recovery is caused by the displacement of AO by TNP from the cavity of PCP6 host molecule.…”

mentioning

confidence: 93%

“…S10), the fluorescence intensity of AO quenching is 211 mainly due to PCP6-rGO based on the outstanding fluorescent quenching 212 Preprints (www.preprints.org) | NOT PEER-REVIEWED | Posted: 28 November 2018 Preprints (www.preprints.org) | NOT PEER-REVIEWED | Posted: 28 November 2018 doi:10.20944/preprints201811.0605.v1 Peer-reviewed version available at Sensors 2018, 19, 91; doi:10.3390/s19010091performance of rGO. The fluorescence quenching of the dye is caused by the 213 fluorescence resonance energy transfer (FRET) between dye and graphene [50,55,57]. 214…”

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confidence: 99%

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A Facile and High Selectivity Novel Fluorescence Sensing Determination of 2, 4, 6-Trinitrophenol Based on Cationic Water-Soluble Pillar[6]arene Graphene Nanocomposite

Tan¹,

Zhang²,

Zeng³

et al. 2018

Preprint

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We describe a selective and sensitive fluorescence platform for the detection of trinitrophenol (TNP) based on competitive host–guest recognition between pyridine-functionalized pillar[6]arene (PCP6) and probe (acridine orange, AO) that used PCP6-functionalized reduced graphene (PCP6-rGO) as the receptor. TNP is an electron-deficient and negative molecule which is captured by PCP6 via electrostatic interactions and π-π interactions. Therefore, a selective and sensitive fluorescence sensor for TNP detection is developed. It has a low detection limit of 0.0035 μM (S/N=3) and a wider linear response of 0.01−5.0 and 5.0−125.0 for TNP. The sensing platform is also used to test TNP in two water and soil samples with satisfying results. This suggests that this approach has potential applications for the determination of TNP.

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Nanomolar Level Acetaminophen Sensor Based on Novel Polypyrrole Hydrogel Derived N‐doped Porous Carbon

et al. 2019

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This study develops a novel approach to morphology‐controlled N‐doped porous carbons (NPC) derived from supramolecular crosslinked polypyrrole hydrogel (PPy‐gel) with tetra‐functional tetrakis(4‐carboxyphenyl)porphyrin as dopant and cross‐linker. Both optimized PPy‐gel and NPC realize acetaminophen determination at nanomolar level, displaying record‐low respective detection limits of 3.0 and 1.0 nM (S/N=3). The optimized NPC demonstrates necklace‐like structure with more edge pyridinic N, revealing better electronic conductivity and higher electrochemically active surface area, and consequently higher sensitivity and selectivity. Even in the presence of three interferences (ascorbic acid, dopamine and uric acid), NPC based electrochemical sensor also shows the ultra‐low detection limit (1.2 nM). The promising application potential of the sensor is proved by the high consistence between measurements in pharmaceutical sample and established acetaminophen standard curve. Moreover, the determination results of acetaminophen in human urine sample obtained by this sensor were in a good agreement with the reference values assayed by HPLC.

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The synthesis of amphiphilic pillar[5]arene functionalized reduced graphene oxide and its application as novel fluorescence sensing platform for the determination of acetaminophen

Cited by 59 publications

References 24 publications

A Fluorescence Sensing Determination of 2,4,6-Trinitrophenol Based on Cationic Water-Soluble Pillar[6]arene Graphene Nanocomposite

A Fluorescence Sensing Determination of 2,4,6-Trinitrophenol Based on Cationic Water-Soluble Pillar[6]arene Graphene Nanocomposite

A Facile and High Selectivity Novel Fluorescence Sensing Determination of 2, 4, 6-Trinitrophenol Based on Cationic Water-Soluble Pillar[6]arene Graphene Nanocomposite

Nanomolar Level Acetaminophen Sensor Based on Novel Polypyrrole Hydrogel Derived N‐doped Porous Carbon

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