Picomolar Detection of Melamine Using Molecularly Imprinted Polymer‐Based Electrochemical Sensors Prepared by UV‐Graft Photopolymerization

2015 ◽  
Vol 27 (2) ◽  
pp. 429-439 ◽  
Author(s):  
Idriss Bakas ◽  
Zakaria Salmi ◽  
Mohamed Jouini ◽  
Florence Geneste ◽  
Isabelle Mazerie ◽  
...  
Keyword(s):  
Molecularly Imprinted Polymer ◽  
Electrochemical Sensors ◽  
Imprinted Polymer ◽  
Molecularly Imprinted

scholarly journals Molecularly imprinted polymer-based electrochemical sensors for biopolymers

2019 ◽  
Vol 14 ◽  
pp. 53-59 ◽  
Author(s):  
Frieder W. Scheller ◽  
Xiaorong Zhang ◽  
Aysu Yarman ◽  
Ulla Wollenberger ◽  
Róbert E. Gyurcsányi
Keyword(s):  
Molecularly Imprinted Polymer ◽  
Electrochemical Sensors ◽  
Imprinted Polymer ◽  
Molecularly Imprinted

scholarly journals Redesigning an Electrochemical MIP Sensor for PFOS: Practicalities and Pitfalls

Sensors ◽  
2019 ◽  
Vol 19 (20) ◽  
pp. 4433 ◽  
Author(s):  
Giulia Moro ◽  
Davide Cristofori ◽  
Fabio Bottari ◽  
Elti Cattaruzza ◽  
Karolien De Wael ◽  
...  
Keyword(s):  
Molecularly Imprinted Polymer ◽  
Electrochemical Sensors ◽  
Differential Pulse ◽  
Complete Characterization ◽  
In Situ Monitoring ◽  
Template Molecule ◽  
Imprinted Polymer ◽  
Heterogeneous Distribution ◽  
Molecularly Imprinted ◽  
Mip Sensor

There is a growing interest in the technological transfer of highly performing electrochemical sensors within portable analytical devices for the in situ monitoring of environmental contaminants, such as perfluorooctanesulfonic acid (PFOS). In the redesign of biomimetic sensors, many parameters should be taken into account from the working conditions to the electrode surface roughness. A complete characterization of the surface modifiers can help to avoid time-consuming optimizations and better interpret the sensor responses. In the present study, a molecularly imprinted polymer electrochemical sensor (MIP) for PFOS optimized on gold disk electrodes was redesigned on commercial gold screen-printed electrodes. However, its performance investigated by differential pulse voltammetry was found to be poor. Before proceeding with further optimization, a morphological study of the bare and modified electrode surfaces was carried out by scanning electron microscopy–energy-dispersive X-ray spectrometry (SEM–EDS), atomic force microscopy (AFM) and profilometry revealing an heterogeneous distribution of the polymer strongly influenced by the electrode roughness. The high content of fluorine of the target-template molecule allowed to map the distribution of the molecularly imprinted polymer before the template removal and to define a characterization protocol. This case study shows the importance of a multi-analytical characterization approach and identify significant parameters to be considered in similar redesigning studies.

Electrochemical sensors based on molecularly imprinted polymer on nanostructured carbon materials: A review

2019 ◽  
Vol 840 ◽  
pp. 343-366 ◽  
Author(s):  
Maísa Azevedo Beluomini ◽  
José Luiz da Silva ◽  
Acelino Cardoso de Sá ◽  
Edervaldo Buffon ◽  
Thulio César Pereira ◽  
...  
Keyword(s):  
Molecularly Imprinted Polymer ◽  
Carbon Materials ◽  
Electrochemical Sensors ◽  
Nanostructured Carbon ◽  
Imprinted Polymer ◽  
Molecularly Imprinted

Electrochemical sensors based on molecularly imprinted polymers on Fe3O4/graphene modified by gold nanoparticles for highly selective and sensitive detection of trace ractopamine in water

The Analyst ◽  
2018 ◽  
Vol 143 (21) ◽  
pp. 5094-5102 ◽  
Author(s):  
Ying Li ◽  
Wenkai Xu ◽  
Xueru Zhao ◽  
Yanfeng Huang ◽  
Junjun Kang ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Electrochemical Sensor ◽  
Molecularly Imprinted Polymer ◽  
Molecularly Imprinted Polymers ◽  
Electrochemical Sensors ◽  
Sensitive Detection ◽  
Imprinted Polymer ◽  
Molecularly Imprinted ◽  
Imprinted Polymers

Gold-modified molecularly imprinted polymer-based electrochemical sensor for selectively monitoring ractopamine in water.

scholarly journals Generic sensor platform based on electro-responsive molecularly imprinted polymer nanoparticles (e-NanoMIPs)

2020 ◽  
Vol 6 (1) ◽  
Author(s):  
A. Garcia-Cruz ◽  
O. S. Ahmad ◽  
K. Alanazi ◽  
E. Piletska ◽  
S. A. Piletsky
Keyword(s):  
Molecularly Imprinted Polymer ◽  
Electrochemical Sensors ◽  
Homoserine Lactone ◽  
Polymer Nanoparticles ◽  
Imprinted Polymer ◽  
Molecularly Imprinted ◽  
Redox Probe ◽  
Sensor Platform ◽  
Voltammetric Methods

Abstract The present research describes the design of robust electrochemical sensors based on electro-responsive molecularly imprinted polymer nanoparticles (e-MIPs). The e-MIPs, tagged with a redox probe, combine both recognition and reporting functions. This system replaces enzyme-mediator pairs used in traditional biosensors. The analyte recognition process relies on the generic actuation phenomenon when the polymer conformation of e-MIPs is changing in response to the presence of the template analyte. The analyte concentration is measured using voltammetric methods. In an exemplification of this technology, electrochemical sensors were developed for the determination of concentrations of trypsin, glucose, paracetamol, C4-homoserine lactone, and THC. The present technology allows for the possibility of producing generic, inexpensive, and robust disposable sensors for clinical, environmental, and forensic applications.

Molecularly imprinted polymer-based electrochemical sensors for environmental analysis

2021 ◽  
Vol 172 ◽  
pp. 112719
Author(s):  
Patrícia Rebelo ◽  
Estefanía Costa-Rama ◽  
Isabel Seguro ◽  
João G. Pacheco ◽  
Henri P.A. Nouws ◽  
...  
Keyword(s):  
Environmental Analysis ◽  
Molecularly Imprinted Polymer ◽  
Electrochemical Sensors ◽  
Imprinted Polymer ◽  
Molecularly Imprinted
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