Graphene oxide based molecularly imprinted polymers with double recognition abilities: The combination of covalent boronic acid and traditional non-covalent monomers

Liu, Shucheng; Pan, Jianming; Zhu, Hengjia; Pan, Guoqing; Qiu, Fengxian; Meng, Minjia; Yao, Juntong; Yuan, Dong

doi:10.1016/j.cej.2016.01.061

Cited by 106 publications

(32 citation statements)

References 57 publications

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“…Although graphene oxide is not electrically conductive, the significant amount of oxygen functional groups, as well as its negative charge, makes it ionically conductive. 30,31 Thus, GO is potentially useful in solid state ion-selective electrodes, in which conduction is ionic rather than electronic. 32 The adjustable functional groups (i.e., hydroxyl, carboxyl and epoxide groups), high surface area, excellent mechanical properties and good compatibility with polymers have made GO as promising material to synthesize nanocomposites.…”

Section: Construction and Evaluation Of A Graphene Oxide Functionalizmentioning

confidence: 99%

Construction and Evaluation of a Graphene Oxide Functionalized Aminopropyltriethoxy Silane Surface Molecularly Imprinted Polymer Potentiometric Sensor for Dipyridamole Detection in Urine and Pharmaceutical Samples

Mirzajani¹,

Arefiyan²

2019

J. Braz. Chem. Soc.

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A dipyridamole (DIP) based surface molecularly imprinted polymer (MIP) was synthesized and applied as a sensing agent in a sensing layer of a new modified potentiometric carbon paste electrode (CPE). The potentiometric modified CPEs (GO@SiO 2-NH 2-MIP/MWCNTs/CPE, where GO is graphene oxide and MWCNTs is multi-walled carbon nanotubes) showed an improved performance in term of Nernstian slope, selectivity and response time compared to the unmodified CPE. The response time of the sensor in the range of 2.5 × 10-8-1.1 × 10-2 M DIP was 20 s. The obtained DIP sensor showed low limit of detection (1 × 10-8 M), and satisfactory long-term stability (higher than 4 months). The practical application of the sensor was demonstrated by the determination of DIP concentration in urine samples and pharmaceutical preparations, with good precision and acceptable recoveries (96.0-103.0%). The prepared sensor showed high selectivity for DIP over a number of common species (aspirin, caffeine, ascorbic acid, glucose, urea, bipyridine,

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Section: Construction and Evaluation Of A Graphene Oxide Functionalizmentioning

confidence: 99%

Construction and Evaluation of a Graphene Oxide Functionalized Aminopropyltriethoxy Silane Surface Molecularly Imprinted Polymer Potentiometric Sensor for Dipyridamole Detection in Urine and Pharmaceutical Samples

Mirzajani¹,

Arefiyan²

2019

J. Braz. Chem. Soc.

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“…Furthermore, the intensity ratio (I D /I G ), which is used to characterize the disordered form of the polymers, has an increasing trend when GO is modified with surface MIPs. This is probably due to the increase of extra molecules, which can result in more disorder of the surface carboxyl and hydroxyl groups . Hence, the GO‐MIPs‐ β ‐CD composite structure is confirmed by the Raman spectra.…”

Section: Resultsmentioning

confidence: 75%

Graphene oxide based molecularly imprinted polymers modified with β‐cyclodextrin for selective extraction of di(2‐ethylhexyl) phthalate in environmental waters

Wang

Cheng

Zhang³

et al. 2019

J of Separation Science

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Graphene oxide based molecularly imprinted polymers modified with β‐cyclodextrin were prepared as solid‐phase extraction column sorbents for specific recognition and sensitive detection of di(2‐ethylhexyl) phthalate in water samples. The morphology and composition of synthesized sorbents were characterized by scanning electron microscopy, thermo‐gravimetric analysis, Raman spectroscopy, and Fourier‐transform infrared spectroscopy. The conditions affecting the performance of extraction procedures such as desorption solvent types and volume, sample pH and volume were investigated. The loading capacity (8.2 μg/mg) of the prepared sorbents increased eight times after modification with β‐cyclodextrin. The developed extraction procedures coupled to high‐performance liquid chromatography exhibited good linearity (0.2–500 μg/L), low limit of detection (0.052 μg/L), and good precision (relative standard deviation˂5.7%) under optimized conditions. The developed solid‐phase extraction technique with prepared sorbents has been successfully applied in extracting trace di(2‐ethylhexyl) phthalate from real natural waters with high efficiency, good selectivity, and desirable recoveries.

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“…Consequently, the equilibrium data of MMIPs and MNIPs for LC were fitted to the Langmuir (1918) and Freundlich (Levan and Vermeulen, 1981) isotherm models are presented in Figure 8. The non-linear forms of Langmuir isotherm model is expressed by the following equations (Liu et al, 2016):

\begin{matrix} eqnarrayright center left \\ Q_{e} = \frac{K_{L} Q_{m} C_{e}}{1 + K_{L} C_{e}} \end{matrix}

Where Q e (mg L −1 ) is the equilibrium adsorption capacity, C e (mg L −1 ) is the equilibrium concentration of adsorbate at equilibrium, and Q m (mg L −1 ) is the maximum adsorption capacity of the adsorbent. K L (L mg −1 ) is the Langmuir adsorption constant.…”

Section: Resultsmentioning

confidence: 99%

Porous and Magnetic Molecularly Imprinted Polymers via Pickering High Internal Phase Emulsions Polymerization for Selective Adsorption of λ-Cyhalothrin

Pan

et al. 2017

Front. Chem.

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A novel macroporous magnetic molecularly imprinted polymer (MMIPs) of was prepared by W/O Pickering (high internal phase emulsions) HIPEs polymerization, and then it was adopted as adsorbent for selective adsorption of λ-cyhalothrin (LC). In static conditions, adsorption capacity of LC increased rapidly in the first 60 min and reached to equilibrium in ~2.0 h. Excellent conformity of the second-order model confirmed the chemical nature of the interaction between the LC and imprinted sites. The fitting adsorption isotherm was a Langmuir type, and the maximum monolayer adsorption capacity at 298 K was 404.4 μmol g−1. Thermodynamic parameters suggested the specific adsorption at 298 K was an exothermic, spontaneous, and entropy decreased process. Competitive recognition studies of the MMIPs were performed with diethyl phthalate (DEP) and the structurally similar compound fenvalerate (FL), and the MMIPs, which displayed high selectivity for LC.

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Graphene oxide based molecularly imprinted polymers with double recognition abilities: The combination of covalent boronic acid and traditional non-covalent monomers

Cited by 106 publications

References 57 publications

Construction and Evaluation of a Graphene Oxide Functionalized Aminopropyltriethoxy Silane Surface Molecularly Imprinted Polymer Potentiometric Sensor for Dipyridamole Detection in Urine and Pharmaceutical Samples

Construction and Evaluation of a Graphene Oxide Functionalized Aminopropyltriethoxy Silane Surface Molecularly Imprinted Polymer Potentiometric Sensor for Dipyridamole Detection in Urine and Pharmaceutical Samples

Graphene oxide based molecularly imprinted polymers modified with β‐cyclodextrin for selective extraction of di(2‐ethylhexyl) phthalate in environmental waters

Porous and Magnetic Molecularly Imprinted Polymers via Pickering High Internal Phase Emulsions Polymerization for Selective Adsorption of λ-Cyhalothrin

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