Preparation of magnetic molecularly imprinted polymer for rapid determination of bisphenol A in environmental water and milk samples

2009 ◽  
Vol 395 (4) ◽  
pp. 1125-1133 ◽  
Author(s):  
Yongsheng Ji ◽  
Juanjuan Yin ◽  
Zhigang Xu ◽  
Chuande Zhao ◽  
Huayu Huang ◽  
...  
Keyword(s):  
Bisphenol A ◽  
Molecularly Imprinted Polymer ◽  
Rapid Determination ◽  
Environmental Water ◽  
Imprinted Polymer ◽  
Molecularly Imprinted ◽  
Magnetic Molecularly Imprinted Polymer ◽  
Milk Samples

Molecularly Imprinted Polymer-Based Electrochemical Sensor for the Determination of Endocrine Disruptor Bisphenol-A in Bovine Milk

2021 ◽  
pp. 130287
Author(s):  
Palanisamy Karthika ◽  
Saravanakumar Shanmuganathan ◽  
Subramanian Viswanathan ◽  
Cristina Delerue-Matos
Keyword(s):  
Bisphenol A ◽  
Electrochemical Sensor ◽  
Molecularly Imprinted Polymer ◽  
Endocrine Disruptor ◽  
Bovine Milk ◽  
Imprinted Polymer ◽  
Molecularly Imprinted

scholarly journals Removal of bisphenol A from aqueous media using a highly selective adsorbent of hybridization cyclodextrin with magnetic molecularly imprinted polymer

2021 ◽  
Vol 8 (3) ◽  
Author(s):  
S. Mamman ◽  
F. B. M. Suah ◽  
M. Raaov ◽  
F. S. Mehamod ◽  
S. Asman ◽  
...  
Keyword(s):  
Bisphenol A ◽  
Molecularly Imprinted Polymer ◽  
Binding Capacity ◽  
Bulk Polymerization ◽  
Resonance Spectroscopy ◽  
Template Molecule ◽  
Order Kinetic ◽  
Imprinted Polymer ◽  
Molecularly Imprinted ◽  
Magnetic Molecularly Imprinted Polymer

In this study, a unique magnetic molecularly imprinted polymer (MMIP) adsorbent towards bisphenol A (BPA) as a template molecule was developed by bulk polymerization using β-cyclodextrin (β-CD) as a co-monomer with methacrylic acid (MAA) to form MMIP MAA–βCD as a new adsorbent. β-CD was hybridized with MAA to obtain water-compactible imprinting sites for the effective removal of BPA from aqueous samples. Benzoyl peroxide and trimethylolpropane trimethacrylate were used as the initiator and cross-linker, respectively. The adsorbents were characterized by Fourier transform infrared spectroscopy, scanning electronic microscopy, transmission electron microscopy, vibrating sample magnetometer, Brunauer–Emmett–Teller and X-ray diffraction. 1 H nuclear magnetic resonance spectroscopy was used to characterize the MAA–βCD and BPA–MAA–βCD complex. Several parameters influencing the adsorption efficiency of BPA such as adsorbent dosage, pH of sample solution, contact time, initial concentrations and temperature as well as selectivity and reusability study have been evaluated. MMIP MAA–βCD showed significantly higher removal efficiency and selective binding capacity towards BPA compared to MMIP MAA owing to its unique morphology with the presence of β-CD. The kinetics data can be well described by the pseudo second-order kinetic and Freundlich isotherm and Halsey models best fitted the isotherm data. The thermodynamic studies indicated that the adsorption reaction was a spontaneous and exothermic process. Therefore, MMIP based on the hybrid monomer of MAA–βCD shows good potential of a new monomer in molecularly imprinted polymer preparation and can be used as an effective adsorbent for the removal of BPA from aqueous solutions.

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