Photoresponsive hollow molecularly imprinted polymer for the determination of trace bisphenol A in water

Gong, Cheng-Bin; Yang, Yuzhu; Yang, Yuliang; Zheng, Anxun; Liu, Song; Tang, Qian

doi:10.1016/j.jcis.2016.07.039

Cited by 36 publications

(17 citation statements)

References 51 publications

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“…BPA‐contaminated samples including drinking water, food, serum, and urine were examined by using methods such as gas chromatography (GC), high‐performance liquid chromatography (HPLC), immunoassays, and electrochemical techniques with limits of detection (LODs) ranging from 10 −15 to 10 −9 molL −1 . A recent study reported an MIP application involving silica mesopheres in conjunction with spectroscopic detection, which offered a cheap and reliable means to determine BPA contamination with an LOD of 0.5 ppm (2.2 μ m ) . Another notable study reported the use of aptasensor‐based Au nanoparticles with an LOD of 7.2 f M .…”

Section: Figurementioning

confidence: 55%

Small‐Molecule Dengue Virus Co‐imprinting and Its Application as an Electrochemical Sensor

et al. 2017

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Polymers can be synthesized to recognize small molecules. This is achieved by introducing the target molecule during monomer self‐assembly, where they can be incorporated during cross‐linking polymerization. Following additional pre‐processing, the material obtained can then be applied as a sensing layer for these molecules in many applications. The sensitivity of the polymers depends on the “active sites” imprinted on the surface. Increasing the number of active sites on the polymers surface can be achieved by using nanoparticles as a platform to support and concentrate the molecules for imprinting. In this work, we report the first use of dengue virus as a supporting nanoparticle to make for a more effective polymer composite sensor for the detection of bisphenol A (BPA), which is an environmental contaminant. The dengue virus has a nanoparticle size of around 100 nm and its surface provides regions where lipids and hydrophobic compounds can bind, making it an ideal support. The mixing of BPA with dengue prior to monomer self‐assembly led to imprinted polymer surfaces with much higher density BPA binding sites and a limit of detection of 0.1 pm. We demonstrate that a BPA–dengue co‐imprinting polymer composite sensor shows a very high sensitivity for BPA, but with lower production costs and technical requirements than other comparable methods.

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Section: Figurementioning

confidence: 55%

Small‐Molecule Dengue Virus Co‐imprinting and Its Application as an Electrochemical Sensor

et al. 2017

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“…Recently, it has also been realized that a couple of synthetic compounds developed for the flame retardants, plasticizer, surfactant, pesticides, and personal care products can also be included in the array of EDCs . Bisphenol‐A (BPA), identified as one of the EDCs, is extensively used as a plasticizer in the manufacturing of plastic articles, plastic coating in food storage can, drinking bottles, polycarbonate baby feeding bottles and dental sealants . The industrial demand for BPA in recent years has forced to increase its worldwide production to 2×10 6 metric tons per year .…”

Section: Introductionmentioning

confidence: 99%

“…[2] Bisphenol-A (BPA), identified as one of the EDCs, is extensively used as a plasticizer in the manufacturing of plastic articles, plastic coating in food storage can, drinking bottles, polycarbonate baby feeding bottles and dental sealants. [3] The industrial demand for BPA in recent years has forced to increase its worldwide production to 2 × 10 6 metric tons per year. [4] Apart from the slow leaching of BPA directly from plastics bottles and food containers, BPA enters into the environment through untreated industrial sewage effluent and the natural disintegration of polycarbonate plastics used in the landfills.…”

Section: Introductionmentioning

confidence: 99%

Selective Navigation of Bisphenol‐A from Water to a Polarity Tuned Porous Molecularly Imprinted Polymer

2018

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A novel water compatible thermally stable molecularly imprinted polymer (MIP) was synthesized with bi‐functional monomers such as methacrylic acid (MAA) and 4‐vinyl pyridine (4VP) in the presence of mixed porogens such as THF and toluene for selectively higher adsorption of potential genotoxic compound Bisphenol‐A (BPA) compared to other structurally comparable phenolic compounds from aqueous solution at pH 7.0. The specific adsorption capacity (56.58 mg/g) and selectivity for BPA compared to non imprinted polymer (NIP) (44.10 mg/g) were achieved at 298 K under optimized conditions. The mesoporous imprints in the macroporous polymeric structure, higher pore volume, higher surface area, synergistic effect of H‐bonding, van der Waals force and π‐π interaction in bi‐functional cavities of MIP improved the recognition selectivity of BPA compared to NIP. The comparison of experimental adsorption isotherm with sixteen adsorption isotherm models conferred that the adsorption of BPA on MIP happened to energetically heterogeneous sites of the imprinted polymer through a spontaneous exothermic process. The kinetics of adsorption of BPA by MIP was best modeled via non‐linear pseudo‐second order kinetics. That novel MIP was found to be reusable for several cycles. This is the first report of the synthesis of thermally stable and mesoporous MAA‐4VP bi‐functional bulk MIPs having excellent selectivity, rapid binding kinetics and appropriate adsorption capacity for adsorption of BPA in water.

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“…Gong et al. developed photoresponsive hollow MIPs for the determination of bisphenol A by using 4‐[(4‐methacryloyloxy)phenylazo]benzenesulfonic acid as the functional monomer . Gong et al.…”

Section: Introductionmentioning

confidence: 99%

“…Among these monomers, azobenzene and its derivatives are particularly interesting because of their good stability and fast, reversible photoisomerization [19]. Gong et al developed photoresponsive hollow MIPs for the determination of bisphenol A by using 4-[(4-methacryloyloxy)phenylazo]benzenesulfonic acid as the functional monomer [20]. Gong et al designed a photoresponsive functional azobenzene group for preparing PSMIPs on SiO 2 for the uptake and release of 2,4-dichlorophenoxyacetic acid [21].…”

mentioning

confidence: 99%

Photoirradiation surface molecularly imprinted polymers for the separation of 6‐O‐α‐d‐maltosyl‐β‐cyclodextrin

Fan

Wang

Meng

et al. 2017

J of Separation Science

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Photoirradiation surface molecularly imprinted polymers for the separation of 6-O-α-d-maltosyl-β-cyclodextrin were synthesized using functionalized silica as a matrix, 4-(phenyldiazenyl)phenol as a light-sensitive monomer, and 6-O-α-d-maltosyl-β-cyclodextrin as a template. Fourier transform infrared spectroscopy results indicated that 4-(phenyldiazenyl)phenol was grafted onto the surface of functionalized silica. The obtained imprinted polymers exhibited specific recognition toward 6-O-α-d-maltosyl-β-cyclodextrin. Equilibrium binding experiments showed that the photoirradiation surface molecularly imprinted polymers obtained the maximum adsorption amount of 6-O-α-d-maltosyl-β-cyclodextrin at 20.5 mg/g. In binding kinetic experiments, the adsorption reached saturation within 2 h with binding capacity of 72.8%. The experimental results showed that the adsorption capacity and selectivity of imprinted polymers were effective for the separation of 6-O-α-d-maltosyl-β-cyclodextrin, indicating that imprinted polymers could be used to isolate 6-O-α-d-maltosyl-β-cyclodextrin from a conversion mixture containing β-cyclodextrin and maltose. The results showed that the imprinted polymers prepared by this method were very promising for the selective separation of 6-O-α-d-maltosyl-β-cyclodextrin.

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Photoresponsive hollow molecularly imprinted polymer for the determination of trace bisphenol A in water

Cited by 36 publications

References 51 publications

Small‐Molecule Dengue Virus Co‐imprinting and Its Application as an Electrochemical Sensor

Small‐Molecule Dengue Virus Co‐imprinting and Its Application as an Electrochemical Sensor

Selective Navigation of Bisphenol‐A from Water to a Polarity Tuned Porous Molecularly Imprinted Polymer

Photoirradiation surface molecularly imprinted polymers for the separation of 6‐O‐α‐d‐maltosyl‐β‐cyclodextrin

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