Magnetically controlled electrochemical sensing membrane based on multifunctional molecularly imprinted polymers for detection of insulin

2016 ◽  
Vol 218 ◽  
pp. 91-100 ◽  
Author(s):  
Wanying Zhu ◽  
Lei Xu ◽  
Chunhong Zhu ◽  
Bingzhi Li ◽  
Hong Xiao ◽  
...  
Keyword(s):  
Molecularly Imprinted Polymers ◽  
Electrochemical Sensing ◽  
Molecularly Imprinted ◽  
Imprinted Polymers ◽  
Sensing Membrane

scholarly journals Molecularly Imprinted Polymers Combined with Electrochemical Sensors for Food Contaminants Analysis

Molecules ◽  
2021 ◽  
Vol 26 (15) ◽  
pp. 4607
Author(s):  
Dounia Elfadil ◽  
Abderrahman Lamaoui ◽  
Flavio Della Pelle ◽  
Aziz Amine ◽  
Dario Compagnone
Keyword(s):  
Food Safety ◽  
Molecularly Imprinted Polymers ◽  
Electrochemical Sensors ◽  
Low Cost ◽  
Electrochemical Analysis ◽  
Ease Of Use ◽  
Electrochemical Sensing ◽  
Food Contaminants ◽  
Molecularly Imprinted ◽  
Imprinted Polymers

Detection of relevant contaminants using screening approaches is a key issue to ensure food safety and respect for the regulatory limits established. Electrochemical sensors present several advantages such as rapidity; ease of use; possibility of on-site analysis and low cost. The lack of selectivity for electrochemical sensors working in complex samples as food may be overcome by coupling them with molecularly imprinted polymers (MIPs). MIPs are synthetic materials that mimic biological receptors and are produced by the polymerization of functional monomers in presence of a target analyte. This paper critically reviews and discusses the recent progress in MIP-based electrochemical sensors for food safety. A brief introduction on MIPs and electrochemical sensors is given; followed by a discussion of the recent achievements for various MIPs-based electrochemical sensors for food contaminants analysis. Both electropolymerization and chemical synthesis of MIP-based electrochemical sensing are discussed as well as the relevant applications of MIPs used in sample preparation and then coupled to electrochemical analysis. Future perspectives and challenges have been eventually given.

Facile construction of reduced graphene oxide–carbon dot complex embedded molecularly imprinted polymers for dual-amplification and selective electrochemical sensing of rutoside

2017 ◽  
Vol 41 (18) ◽  
pp. 9977-9983 ◽  
Author(s):  
Huijun Guo ◽  
Rijun Gui ◽  
Hui Jin ◽  
Zonghua Wang
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Molecularly Imprinted Polymers ◽  
Electrochemical Sensing ◽  
Molecularly Imprinted ◽  
Carbon Dot ◽  
Imprinted Polymers ◽  
Reduced Graphene ◽  
Dual Amplification

This article reported reduced graphene oxide–carbon dot embedded molecularly imprinted polymers for sensitive and selective electrochemical sensing of rutoside.

Electrochemical Sensors Based on Molecularly Imprinted Polymers for Pharmaceuticals Analysis

2019 ◽  
Vol 15 (3) ◽  
pp. 219-239 ◽  
Author(s):  
Abd-Egawad Radi ◽  
Tarek Wahdan ◽  
Amir El-Basiony
Keyword(s):  
Molecular Imprinting ◽  
Molecularly Imprinted Polymers ◽  
Biological Samples ◽  
Electrochemical Sensors ◽  
Simple Procedure ◽  
Electrochemical Sensing ◽  
Portable Devices ◽  
Molecularly Imprinted ◽  
Imprinted Polymers ◽  
The Future

<P>Background: The electrochemical sensing of drugs in pharmaceutical formulations and biological matrices using molecular-imprinting polymer (MIP) as a recognition element combined with different electrochemical signal transduction has been widely developed. The MIP electrochemical sensors based on nanomaterials such as graphene, carbon nanotubes, nanoparticles, as well as other electrode modifiers incorporated into the MIPs to enhance the performance of the sensor, have been discussed. The recent advances in enantioselective sensing using MIP-based electrochemical sensors have been described. </P><P> Methods: The molecular imprinting has more than six decades of history. MIPs were introduced in electrochemistry only in the 1990s by Mosbach and coworkers. This review covers recent literature published a few years ago. The future outlook for sensing, miniaturization and development of portable devices for multi-analyte detection of the target analytes was also given. </P><P> Results: The growing pharmaceutical interest in molecularly imprinted polymers is probably a direct consequence of its major advantages over other analytical techniques, namely, increased selectivity and sensitivity of the method. Due to the complexity of biological samples and the trace levels of drugs in biological samples, molecularly imprinted polymers have been used to improve the response signal, increase the sensitivity, and decrease the detection limit of the sensors. The emergence of nanomaterials opened a new horizon in designing integrated electrochemical systems. The success of obtaining a high-performance electrochemical sensor based on MIPs lies in the kind of material that builds up the detection platform. </P><P> Conclusion: The novel approaches to produce MIP materials, combined with electrochemical transduction to develop sensors for screening different pharmaceutically active compounds have been overviewed. MIPs may appear indispensable for sensing in harsh conditions, or sensing that requires longterm stability unachievable by biological receptors. The electrochemical sensors provide several benefits including low costs, shortening analysis time, simple design; portability; miniaturization, easy-touse, can be tailored using a simple procedure for particular applications. The performance of sensor can be improved by incorporating some conductive nanomaterials as AuNPs, CNTs, graphene, nanowires and magnetic nanoparticles in the polymeric matrix of MIP-based sensors. The application of new electrochemical sensing scaffolds based on novel multifunctional-MIPs is expected to be widely developed and used in the future.</P>

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