Molecularly Imprinted Polymer on Magnetic Graphene Oxide for Fast and Selective Extraction of 17β-Estradiol

2014 ◽  
Vol 62 (30) ◽  
pp. 7436-7443 ◽  
Author(s):  
Fangjian Ning ◽  
Hailong Peng ◽  
Jinhua Li ◽  
Lingxin Chen ◽  
Hua Xiong
2014 ◽  
Vol 2 (37) ◽  
pp. 15345-15356 ◽  
Author(s):  
Sheng-Dong Pan ◽  
Hao-Yu Shen ◽  
Li-Xin Zhou ◽  
Xiao-Hong Chen ◽  
Yong-Gang Zhao ◽  
...  

A novel, magnetic GO-modified with molecularly imprinted polymer (MGO@MIP) was controllably synthesized and shown to exhibit excellent adsorption performance towards PCP.


RSC Advances ◽  
2015 ◽  
Vol 5 (84) ◽  
pp. 68397-68403 ◽  
Author(s):  
Huimin Duan ◽  
Leilei Li ◽  
Xiaojiao Wang ◽  
Yanhui Wang ◽  
Jianbo Li ◽  
...  

In this report, a sensitive and selective chemiluminescence biosensor for bovine serum albumin coupled with surface molecularly imprinted nanocomplex using β-cyclodextrin/chitosan–magnetic graphene oxide as backbone material was investigated.


RSC Advances ◽  
2016 ◽  
Vol 6 (15) ◽  
pp. 12391-12397 ◽  
Author(s):  
Yanhui Wang ◽  
Huimin Duan ◽  
Leilei Li ◽  
Xiaojiao Wang ◽  
Jianbo Li ◽  
...  

In this paper, a new chemiluminescence sensor possessing high selectivity and sensitivity was established for determination of lysozyme using magnetic graphene oxide–multi-walled carbon nanotube surface molecularly imprinted polymer.


RSC Advances ◽  
2017 ◽  
Vol 7 (54) ◽  
pp. 34077-34085 ◽  
Author(s):  
Xinwei Chen ◽  
Nengsheng Ye

Graphene oxide–functionalized molecularly imprinted polymer particles have been prepared for specific selective extraction and determination of cefadroxil in environmental water samples.


2021 ◽  
Vol 11 (4) ◽  
pp. 1577
Author(s):  
Marco Mora-Granados ◽  
David González-Gómez ◽  
Jin Su Jeong ◽  
Alejandrina Gallego-Picó

Studies for monitoring the bioavailability of dietary flavonoid compounds generate great interest. Among them, low-molecular-weight phenolic acids, secondary metabolites present in colonic catabolism and urinary excretion, have been proposed as biomarkers of polyphenol intake. Using 4-hydroxyphenylacetic acid as a template, a molecularly imprinted polymer (MIP) was synthesized for selective extraction of these hydroxylated metabolites from human urine samples and posterior analysis in an HPLC-DAD-MS system. Polymers were characterized by Scanning electron microscopy (SEM), Attenuated total reflection-Fourier transform infrared spectroscopy (ATR-FTIR), Brunauer-Emmett-Teller (BET) method, and binding experiments. MIP presents specific recognition ability for template and analogues molecules. This capacity of recognition and the pH dependence of the binding strength was also studied. The method was validated over a concentration range of 0.25–40 mg/L, r2 > 0.995. In the optimized conditions, the recovery value was 94% with RSD 1.2%. The Limit of Detection (LOD) and Limit of Quantification (LOQ) were 1.22 and 3.69 mg/L, respectively. In our knowledge, it is the first time that this methodology is applied to analyze urinary catabolites of the polyphenol compound and to provide a specific method and simple analysis alternative. The selective extraction of these metabolites improves the application and results obtained by other less sensitive analysis methods than the validation method. It also facilitates the development of new screening methods.


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