scholarly journals Electropolymerised Polypyrroles as Active Layers for Molecularly Imprinted Sensors: Fabrication and Applications

Materials ◽  
2021 ◽  
Vol 14 (6) ◽  
pp. 1369
Author(s):  
Karolina Glosz ◽  
Agnieszka Stolarczyk ◽  
Tomasz Jarosz
Keyword(s):  
Conjugated Polymers ◽  
Molecular Imprinting ◽  
High Selectivity ◽  
Bioactive Substances ◽  
Molecularly Imprinted ◽  
Active Layers ◽  
Recent Developments ◽  
Molecularly Imprinted Sensors

Conjugated polymers are widely used in the development of sensors, but even though they are sensitive and robust, they typically show limited selectivity, being cross-sensitive to many substances. In turn, molecular imprinting is a method involving modification of the microstructure of the surface to incorporate cavities, whose shape matches that of the “template”—the analyte to be detected, resulting in high selectivity. The primary goal of this review is to report on and briefly explain the most relevant recent developments related to sensors utilising molecularly imprinted polypyrrole layers and their applications, particularly regarding the detection of bioactive substances. The key approaches to depositing such layers and the most relevant types of analytes are highlighted, and the various trends in the development of this type of sensors are explored.

Molecularly Imprinted Materials: Towards the Next Generation

2002 ◽  
Vol 723 ◽  
Author(s):  
Lei Ye ◽  
Klaus Mosbach ◽  
David A. Spivak ◽  
Martha Sibrian-Vazquez
Keyword(s):  
Molecular Imprinting ◽  
Next Generation ◽  
Polymer Beads ◽  
Molecularly Imprinted ◽  
Molecular Imprinting Technology ◽  
Recent Developments ◽  
Short Presentation

AbstractThis brief overview summarizes some recent developments from our Center for Molecular Imprinting related to the topic of this symposium. After a short presentation of the principle of molecular imprinting and recognition, the use of different materials including hybrids for the formation of the host will be discussed, followed by examples given of different formats used such as small polymer beads. In closing, potential directions for the next generation of molecular imprinting technology will be discussed.

Molecularly imprinted polymers’ application in pesticide residue detection

The Analyst ◽  
2018 ◽  
Vol 143 (17) ◽  
pp. 3971-3989 ◽  
Author(s):  
Saqib Farooq ◽  
Jiyun Nie ◽  
Yang Cheng ◽  
Zhen Yan ◽  
Jing Li ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Pesticide Residue ◽  
Molecular Imprinting ◽  
Molecularly Imprinted Polymers ◽  
High Selectivity ◽  
High Sensitivity ◽  
Molecularly Imprinted ◽  
Imprinted Polymers ◽  
Residue Detection ◽  
Molecular Imprinting Technology

Molecularly imprinted polymers (MIPs) are produced using molecular imprinting technology (MIT) and have specific analyte-binding abilities and unique properties, including chemical and thermal stability, reusability, high selectivity, and high sensitivity.

Mycotoxin Analysis Using Imprinted Materials Technology: Recent Developments

2016 ◽  
Vol 99 (4) ◽  
pp. 861-864 ◽  
Author(s):  
Michael Appell ◽  
Anja Mueller
Keyword(s):  
Molecular Imprinting ◽  
Molecularly Imprinted Polymers ◽  
Fusaric Acid ◽  
Cost Effective ◽  
Toxic Exposure ◽  
Imprinted Polymer ◽  
Molecularly Imprinted ◽  
Molecular Imprinting Technology ◽  
Recent Developments ◽  
Mycotoxin Analysis

Abstract Molecular imprinting technology is an attractive, cost-effective, and robust alternative to address the limitations of highly selective natural receptors, such as antibodies and aptamers. The field of molecular imprinting has seen a recent surge in growth, and several commercially available products are of great interest for sample cleanup to improve mycotoxin analysis. Current research trends are in specific applications of imprinting technology for small-molecule sensing and chromatographic cleanup procedures in new commodities. The choice of components and imprinting template are critical factors for mycotoxin recovery or detection optimization. Template mimics offer a means to reduce toxic exposure during polymer synthesis and address issues of leaching template from the imprinted polymer. Recent reports of molecularly imprinted polymers for aflatoxins, ochratoxins, fumonisins, fusaric acid, citrinin, patulin, zearalenone, deoxynivalenol, and T-2 toxin are reviewed.

Molecularly imprinted nanozymes with faster catalytic activity and better specificity

Nanoscale ◽  
2019 ◽  
Vol 11 (11) ◽  
pp. 4854-4863 ◽  
Author(s):  
Zijie Zhang ◽  
Yuqing Li ◽  
Xiaohan Zhang ◽  
Juewen Liu
Keyword(s):  
Activation Energy ◽  
Catalytic Activity ◽  
Molecular Imprinting ◽  
Selective Adsorption ◽  
Molecularly Imprinted ◽  
Product Release

Molecular imprinting accelerates nanozyme catalysis and improves specificity attributable to selective adsorption of imprinted substrate, decreasing activation energy and facilitating product release.

Precisely controlled molecular imprinting of glutathione-s-transferase by orientated template immobilization using specific interaction with an anchored ligand on a gold substrate

2014 ◽  
Vol 5 (16) ◽  
pp. 4764-4771 ◽  
Author(s):  
Yuri Kamon ◽  
Ryo Matsuura ◽  
Yukiya Kitayama ◽  
Tooru Ooya ◽  
Toshifumi Takeuchi
Keyword(s):  
Thin Films ◽  
Molecular Imprinting ◽  
Molecularly Imprinted Polymer ◽  
Specific Interaction ◽  
Specific Interactions ◽  
Synthetic Route ◽  
Gold Substrate ◽  
Imprinted Polymer ◽  
Glutathione S Transferase ◽  
Molecularly Imprinted

We demonstrate a novel synthetic route for molecularly imprinted polymer (MIP) thin films using a bottom-up approach utilizing protein–ligand specific interactions.

scholarly journals Recent developments in the selective dispersion of single-walled carbon nanotubes using conjugated polymers

2017 ◽  
Vol 8 (11) ◽  
pp. 7292-7305 ◽  
Author(s):  
Darryl Fong ◽  
Alex Adronov
Keyword(s):  
Carbon Nanotubes ◽  
Conjugated Polymers ◽  
Single Walled Carbon Nanotubes ◽  
Single Walled Carbon ◽  
Recent Developments ◽  
Walled Carbon Nanotubes

Selective dispersion of single-walled carbon nanotubes can be accomplished using conjugated polymers by varying a number of parameters.

scholarly journals Monitoring of Irinotecan in Human Plasma: Sensitive Fluorescent Nanogels by Molecular Imprinting

2019 ◽  
Author(s):  
Martina Tommasini ◽  
Elena Pellizzoni ◽  
Valentina Iacuzzi ◽  
Elena Marangon ◽  
Paola Posocco ◽  
...  
Keyword(s):  
Amino Acids ◽  
Fluorescence Quenching ◽  
Human Plasma ◽  
Molecular Imprinting ◽  
Plasma Sample ◽  
Direct Detection ◽  
Fluorescent Nanoparticles ◽  
High Dilution ◽  
Molecularly Imprinted

A series of fluorescent molecularly imprinted nanogels to detect irinotecan (CPT11) were prepared and characterized. A set of amino acids and napthalimide polymerisable derivatives allowed to obtain polymers as soluble fluorescent nanoparticles by high dilution imprinted synthesis. The direct detection of irinotecan in human plasma was obtained by fluorescence quenching of the naphtalimide-based imprinted materials. The plasma sample treated with acetonitrile allowed the detection of irinotecan in the 10nM – 30μM range. The LOD was 9.4 nM, with within-run variability 10% and day to day variability 13%.<br>

π-Conjugated polymers with thermocleavable substituents for use as active layers in organic photovoltaics

2011 ◽  
Vol 2 (1) ◽  
pp. 175-180 ◽  
Author(s):  
Jaclyn L. Brusso ◽  
Mathilde R. Lilliedal ◽  
Steven Holdcroft
Keyword(s):  
Conjugated Polymers ◽  
Organic Photovoltaics ◽  
Active Layers

Application of Response Surface Methodology to Synthesize Appropriate Molecularly Imprinted Polymer for Diazinon

2014 ◽  
Vol 605 ◽  
pp. 67-70 ◽  
Author(s):  
Mohsen Rahiminezhad ◽  
Seyed Jamaleddin Shahtaheri ◽  
Mohammad Reza Ganjali ◽  
Abbas Rahimi Rahimi Forushani
Keyword(s):  
Molecular Imprinting ◽  
Molecularly Imprinted Polymer ◽  
Binding Sites ◽  
Capillary Electrochromatography ◽  
Template Molecule ◽  
Imprinted Polymer ◽  
Molecularly Imprinted ◽  
Functional Monomers ◽  
Molecular Imprinting Technology ◽  
Cross Linker

Molecular imprinting technology has become an interesting research area to the preparation of specific sorbent material for environmental and occupational sample preparation techniques (1). In the molecular imprinting technology, specific binding sites have been formed in polymeric matrix, which often have an affinity and selectivity similar to antibody-antigen systems (2). In molecular imprinted technology, functional monomers are arranged in a complementary configuration around a template molecule, then, cross-linker and solvent are also added and the mixture is treated to give a porous material containing nono-sized binding sites. After extraction of the template molecule by washing, vacant imprinted sites will be left in polymer, which are available for rebinding of the template or its structural analogue (3). The stability, convention of preparation and low cost of these materials make them particularly attractive (4). These synthetic materials have been used for capillary electrochromatography (5), chromatography columns (6), sensors (7), and catalyze system (8). Depending on the molecular imprinting approach, different experimental variables such as the type and amounts of functional monomers, porogenic solvent, initiator, monomer to cross-linker ratio, temperature, and etc may alter the properties of the final polymeric materials. In this work, chemometric approach based on Central Composite Design (CCD) was used to design the experiments as well as to find the optimum conditions for preparing appropriate diazinon molecularly imprinted polymer.

Fluorescence signaling molecularly imprinted polymers for antibiotics prepared via site-directed post-imprinting introduction of plural fluorescent reporters within the recognition cavity

2016 ◽  
Vol 4 (44) ◽  
pp. 7138-7145 ◽  
Author(s):  
Hirobumi Sunayama ◽  
Takeo Ohta ◽  
Atsushi Kuwahara ◽  
Toshifumi Takeuchi
Keyword(s):  
Molecular Imprinting ◽  
Molecularly Imprinted Polymers ◽  
Fluorescent Dyes ◽  
Specific Binding ◽  
Fluorescence Signal ◽  
Molecularly Imprinted ◽  
Imprinted Polymers ◽  
Fluorescent Reporters ◽  
Binding Event ◽  
Fluorescence Signaling

An antibiotic-imprinted cavity with two different fluorescent dyes was prepared by molecular imprinting and subsequent post-imprinting modifications (PIMs), for the readout of a specific binding event as a fluorescence signal.

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