A molecular imprinting-based multifunctional chemosensor for phthalate esters

Gong, Cheng-Bin; Ou, Xiaoxiao; Liu, Song; Jin, Yong-lei; Huang, Hairong; Tang, Qian; Lam, Michael Hon-Wah; Chow, Cheuk Fai Stephen

doi:10.1016/j.dyepig.2016.10.047

Cited by 17 publications

(4 citation statements)

References 53 publications

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“…12,13 MIPs have potential applications in separation and purication, 14,15 molecular recognition, 16,17 catalysis, 18,19 drug delivery, 20,21 chemical sensing and biosensors. 22,23 Stimuli-responsive MIPs are easily obtained by using stimuli-responsive functional monomers. [24][25][26][27][28][29][30][31] Photoresponsive MIPs that are prepared by using photo-responsive azobenzene derivatives as the functional monomers have been used to determine trace pesticide residue in fruits and vegetables, 32 phthalate esters in plastics, 33 bisphenol A in water, 34,35 uric acid in physiological uids, 36 triamterene in human urine and serum, 37 4-ethylphenol in red wine, 38 and illegal additives (melamine) and antibiotics (griseofulvin) in milk.…”

Section: Introductionmentioning

confidence: 99%

A visible-light-responsive molecularly imprinted polyurethane for specific detection of dibenzothiophene in gasoline

Feng

Liang

et al. 2022

Anal. Methods

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Section: Introductionmentioning

confidence: 99%

A visible-light-responsive molecularly imprinted polyurethane for specific detection of dibenzothiophene in gasoline

Feng

Liang

et al. 2022

Anal. Methods

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“…Meanwhile, those imprinted cavities are endowed with the established ability to recognize the target analyte, i.e., template molecules (Xu et al, 2013). MIPs are widely applied in purification and separation (Li et al, 2015;Gong et al, 2017a;He et al, 2018;Zhang et al, 2018;Gomez-Arribas et al, 2019), chiral recognition (Rutkowska et al, 2018;Zhao et al, 2019;Li et al, 2020), chemo-and bio-sensing (Altintas et al, 2016;Gong et al, 2017b;Ding et al, 2020;Kalecki et al, 2020), and catalysis and degradation (Liu et al, 2015;Zheng et al, 2017;Boitard et al, 2019;Muratsugu et al, 2020) due to its physical stability, thermal stability, low cost, and ease of preparation.…”

Section: Introductionmentioning

confidence: 99%

Photoresponsive Surface Molecularly Imprinted Polymers for the Detection of Profenofos in Tomato and Mangosteen

Chen

Yang

et al. 2020

Front. Chem.

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As a moderately toxic organophosphorus pesticide, profenofos (PFF) is widely used in agricultural practice, resulting in the accumulation of a high amount of PFF in agricultural products and the environment. This will inevitably damage our health. Therefore, it is important to establish a convenient and sensitive method for the detection of PFF. This paper reports a photoresponsive surface-imprinted polymer based on poly(styrene-co-methyl acrylic acid) (PS-co-PMAA@PSMIPs) for the detection of PFF by using carboxyl-capped polystyrene microspheres (PS-co-PMAA), PFF, 4-((4-(methacryloyloxy)phenyl)diazenyl) benzoic acid, and triethanolamine trimethacrylate as the substrate, template, functional monomer, and cross-linker, respectively. PS-co-PMAA@PSMIP shows good photoresponsive properties in DMSO/H 2 O (3:1, v/v). Its photoisomerization rate constant exhibits a good linear relationship with PFF concentration in the range of 0∼15 µmol/L. PS-co-PMAA@PSMIP was applied for the determination of PFF in spiked tomato and mangosteen with good recoveries ranging in 94.4-102.4%.

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“…Even though many application studies have been achieved using phthalate molecules and anhydride derivatives, to the best of our knowledge, anhydride and amide phenyl selenide conjugates have never been investigated in such fluorescence studies; here, we pursue selective, water-soluble, and low-molecular-weight detection of HOCl in vitro and demonstrate a “turn-on” response. Because of the susceptibility of phthalates to decomposition, Probe-OCl was investigated in detail despite its apparent vulnerability. − Further studies in living cells also demonstrated that Probe-OCl has the ability to accumulate within LDs and act with “turn-on” fluorescence signaling prior to Se oxidation and gives rise to fluorescence because of the AIE effects.…”

Section: Introductionmentioning

confidence: 99%

Overriding Phthalate Decomposition When Exploring Mycophenolic Acid Intermediates as Selenium-Based ROS Biological Probes

et al. 2018

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Hypochlorous (OCl–) acid is the most well-known bacterial oxidant to be produced by neutrophils. Excess amounts of OCl– can cause various disorders in living systems. Herein, we have designed, synthesized, and characterized two novel organoselenium-based target molecules (Probe-1 and Probe-OCl) based on a synthetic intermediate of mycophenolic acid for the aqueous detection of OCl–. Probe 1 has been recently reported (Org. Lett. 2018, 20, 3557–3561); both probes show immediate “turn-on” fluorescence (<1 s) upon the addition of OCl–, display an increase in the fluorescence quantum yield (3.7-fold in Probe-1 and 11.6-fold in Probe-OCl), and are completely soluble in aqueous media without the help of any cosolvent. However, a decrease in the “turn-on” intensity with the oxidized version of Probe-1 in cell assays due to the anhydride/phthalate functionality suggests that probe degradation occurs based on hydrolytic action (a probe degradation half-life of ∼1500 s at 15 μM Probe-1 and 150 μM OCl). Thus, the change of “anhydride” to “methylamide” begets Probe-OCl, which possesses more stability without sacrificing its water solubility properties and responses at short times. Further studies suggest that Probe-OCl is highly stable within physiological pH (pH = 7.4). Surprisingly, in live cell experiments involving U-2 OS cells and HeLa cells, Probe-OCl accumulated and aggregated in lipid droplets and gives a “turn-on” fluorescence response. 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assays confirmed that Probe-OCl is not toxic. Cuvette aggregation studies were also performed (tetrahydrofuran/H2O) to demonstrate aggregation-induced fluorescence at longer times. Our current hypothesis is that the “turn-on” fluorescence effect is caused by the aggregation-induced emission mechanism available for Probe-OCl. In this case, in tandem, we reanalyzed the Mes-BOD-SePh derivative to compare and contrast cell localization as imaged by confocal microscopy; fluorescence emission occurs in the absence of, or prior to, Se oxidation.

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A molecular imprinting-based multifunctional chemosensor for phthalate esters

Cited by 17 publications

References 53 publications

A visible-light-responsive molecularly imprinted polyurethane for specific detection of dibenzothiophene in gasoline

A visible-light-responsive molecularly imprinted polyurethane for specific detection of dibenzothiophene in gasoline

Photoresponsive Surface Molecularly Imprinted Polymers for the Detection of Profenofos in Tomato and Mangosteen

Overriding Phthalate Decomposition When Exploring Mycophenolic Acid Intermediates as Selenium-Based ROS Biological Probes

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