Fabrication and evaluation of hollow surface molecularly imprinted polymer for rapid and selective adsorption of dibenzothiophene

Hua, Songjie; Zhao, Liang; Cao, Liyuan; Wang, Xiaoqin; Gao, Jinsen; Chen, Xu

doi:10.1016/j.cej.2018.03.128

Cited by 61 publications

(24 citation statements)

References 46 publications

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“…To study the kinetics of propranolol binding with MIP and NIP, pseudo‐first‐order and pseudo‐second‐order kinetic models (Equations and ) were used to fit the experimental data:

italiclg ((), Q_{e} - Q_{t}) = italiclg Q_{e} - \frac{k_{1}}{2.303} t,

\frac{t}{Q_{t}} = \frac{1}{k_{2} Q_{e}^{2}} + \frac{t}{Q_{e}},

where Q e (mg g −1 ) and Q t (mg g −1 ) are the amount of adsorption at equilibrium and the amount of adsorption at time t (min), respectively. k 1 (min −1 ) and k 2 (g mg −1 min −1 ) are the pseudo‐first‐order and pseudo‐second‐order rate constants of adsorption, respectively.…”

Section: Resultsmentioning

confidence: 99%

“…Langmuir and Freundlich isothermal models were used to fit the data of equilibrium binding of ( R , S )‐propranolol on MIP and NIP particles. The Langmuir and Freundlich isothermal equations are as follows:

\frac{C_{e}}{Q_{e}} = \frac{C_{e}}{Q_{m}} + \frac{1}{K_{L} Q_{m}},

l normalg Q_{e} = \frac{1}{n} {lgC}_{e} + {lgK}_{F},

where C e (μM) and Q e (mg g −1 ) are the equilibrium concentration and the amount of bound ( R , S )‐propranolol, respectively, Q m (mg g −1 ) is the maximum adsorption capacity, and K d is the Langmuir constant. K F and n are the Freundlich adsorption equilibrium constants.…”

Section: Resultsmentioning

confidence: 99%

“…To study the kinetics of propranolol binding with MIP and NIP, pseudo-first-order and pseudo-secondorder kinetic models (Equations (3) and (4)) were used to fit the experimental data: 26,27 lg Q e − Q t ð Þ= lgQ e − k 1 2:303 t, ð3Þ…”

Section: Binding Kineticsmentioning

confidence: 99%

“…Langmuir and Freundlich isothermal models were used to fit the data of equilibrium binding of (R,S)propranolol on MIP and NIP particles. The Langmuir and Freundlich isothermal equations are as follows 26,27 :…”

Section: Adsorption Isothermmentioning

confidence: 99%

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Synthesis of molecularly imprinted polymers using a functionalized initiator for chiral‐selective recognition of propranolol

Liu

Holdsworth

2020

Chirality

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We present a new concept of synthesis for preparation of molecularly imprinted polymers using a functionalized initiator to replace the traditional functional monomer. Using propranolol as a model template, a carboxyl‐functionalized radical initiator was demonstrated to lead to high‐selectivity polymer particles prepared in a standard precipitation polymerization system. When a single enantiomer of propranolol was used as template, the imprinted polymer particles exhibited clear chiral selectivity in an equilibrium binding experiment. Unlike the previous molecular imprinting systems where the active free radicals can be distant from the template‐functional monomer complex, the method reported in this work makes sure that the actual radical polymerization takes place in the vicinity of the template‐associated functional groups. The success of using functional initiator to synthesize molecularly imprinted polymers brings in new possibilities to improve the functional performance of molecularly imprinted synthetic receptors.

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“…To study the kinetics of propranolol binding with MIP and NIP, pseudo‐first‐order and pseudo‐second‐order kinetic models (Equations and ) were used to fit the experimental data:

italiclg ((), Q_{e} - Q_{t}) = italiclg Q_{e} - \frac{k_{1}}{2.303} t,

\frac{t}{Q_{t}} = \frac{1}{k_{2} Q_{e}^{2}} + \frac{t}{Q_{e}},

Section: Resultsmentioning

confidence: 99%

\frac{C_{e}}{Q_{e}} = \frac{C_{e}}{Q_{m}} + \frac{1}{K_{L} Q_{m}},

l normalg Q_{e} = \frac{1}{n} {lgC}_{e} + {lgK}_{F},

Section: Resultsmentioning

confidence: 99%

Section: Binding Kineticsmentioning

confidence: 99%

Section: Adsorption Isothermmentioning

confidence: 99%

See 2 more Smart Citations

Synthesis of molecularly imprinted polymers using a functionalized initiator for chiral‐selective recognition of propranolol

Liu

Holdsworth

2020

Chirality

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show abstract

“…158 Fe3O4 microspheres coated with a silanized carbon shell (Fe3O4/C) also served as core sorbent to produce MIP particles, the hollow surface of the MIP being then generated by dissolving the Fe3O4/C microspheres that served as sacrificial material. 159 A similar approach consisted in the use of silica nanospheres, the hydrolysis of the SiO2 cores giving rise to a hollow shell structured MIP of 480 nm diameter with a shell thickness of 40 nm. 41 A zeolite imidazolate framework-8 (ZIF-8) was used as a stabilizer and sacrificial material in a Pickering emulsion polymerization procedure, the further dissolution of ZIF-8 leading to hollow spherical polymer microspheres too.…”

Section: Preparation Of the Mip Particlesmentioning

confidence: 99%

Sample Preparation Using Molecularly Imprinted Polymers

2019

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Preparation and Properties of Hollow Magnetic Liquid Crystal Molecularly Imprinted Polymers as Silybin Sustained‐release Carriers

Tan

Chen

et al. 2021

ChemistrySelect

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In this work, a new drug carrier, the hollow magnetic silybin liquid crystal molecular imprinted polymer (HMS@LC-MIP) was prepared through the reverse atom radical transfer polymerization(RATRP) method. In order to decrease the degree of cross-linker, the liquid crystal ingredient methylphenyl dicyclohexyl ethylene, a kind of physical cross-linker, being able to replace the chemical cross-linker partly, was introduced into the synthetic system. The characterizations of HMS@LC-MIPs were investigated by FT-IR, VSM, TEM and so on. A series of adsorption experiments showed the maximum adsorption capacity and the adsorption equilibrium time of HMS@LC-MIP were 18.53 mg g À 1 and 180 min, respectively, and the relative selectivity factor β = 2.06 implied HMS@LC-MIP had the high selectivity to the template. The in-vitro release experiments exhibited HMS@LC-MIP possessed the good responsiveness to pH values and the desirable slow release performance with 48 h of sustaining time. In short, the HMS@LC-MIP should be of a potential as drug sustained-release agent in the future.

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Fabrication and evaluation of hollow surface molecularly imprinted polymer for rapid and selective adsorption of dibenzothiophene

Cited by 61 publications

References 46 publications

Synthesis of molecularly imprinted polymers using a functionalized initiator for chiral‐selective recognition of propranolol

Synthesis of molecularly imprinted polymers using a functionalized initiator for chiral‐selective recognition of propranolol

Sample Preparation Using Molecularly Imprinted Polymers

Preparation and Properties of Hollow Magnetic Liquid Crystal Molecularly Imprinted Polymers as Silybin Sustained‐release Carriers

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