Nanomaterial-based molecularly imprinted polymers for pesticides detection: Recent trends and future prospects

Mahmoudpour, Mansour; Torbati, Mohammadali; Mousavi, Mir‐Michael; Guárdia, Miguel de la; Dolatabadi, Jafar Ezzati Nazhad

doi:10.1016/j.trac.2020.115943

Cited by 122 publications

(36 citation statements)

References 99 publications

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“…Особое внимание при подготовке обзора уделено новым научным идеям, реализованным в междисциплинарных исследованиях. В данной статье не рассматривались иммуноферментные методы анализа [10], аналитические системы на основе аптамеров [11] и молекулярно импринтированных полимеров [12].…”

Section: Enzymes and Their Forms Used In Detection Of Organophosphorus Compoundsunclassified

Enzymes and Their Forms Used in Detection of Organophosphorus Compounds

2021

Journal of NBC Protection Corps

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Еnzymes are able to effectively interact with various organophosphorus compounds (OPC), entering into (bio)chemical reactions with them. Changes in the initial activity of enzymes as a result of their inhibition by OPC, the formation of OPC degradation products under the action of hydrolytic enzymes, etc. can be determined using different physical and chemical methods and used in bioanalytic systems to determine the concentrations of OPC. The purpose of the review is to analyze the main scientific results achieved over the past 10 years in the development of analytical systems based on enzymes intended for the determination of OPC. It is shown in the article, that the requirements for the sensitivity of biosensors are based on the norms of the content of the analyzed substances detected in/at the objects of mandatory control. The cholinesterases compose a basis for the development of the largest number of ultra-sensitive biosensors, although other enzymes can be successfully used as a biosensitive element. The most technologically advanced solution that is close to the practical implementation seems to be bioanalytical systems using immobilized enzymes. Improving the detection limits of the OPC can be achieved by using nanoobjects together with modern methods of signal transducers, for example, with nanomechanical detectors and signal converters. This combination of technical solutions ensures the sensitivity of the OPC analysis up to pg/l. At present, «reagentless» systems have received significant development, which have become the basis for the production of a large number of commercially available strips for the express determination of OPC. Modern demands stimulate the rapid development of portable and, especially, wearable biosensors that can be attached to various surfaces, including a clothing. The progress in the development of affine amino acid sequences, in the future, will allow the creation of enzyme biosensors on any surface.

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Section: Enzymes and Their Forms Used In Detection Of Organophosphorus Compoundsunclassified

Enzymes and Their Forms Used in Detection of Organophosphorus Compounds

2021

Journal of NBC Protection Corps

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“…2020 [13] Applications of chitosan in molecularly and ion imprinted polymers A brief overview of recent applications of chitosan-based MIPs and MIP composites.…”

Section: Recent Advances On Iipmentioning

confidence: 99%

Towards Clean and Safe Water: A Review on the Emerging Role of Imprinted Polymer-Based Electrochemical Sensors

Zheng¹,

Khaoulani²,

Ktari³

et al. 2021

Preprint

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This mini-review critically summarizes the knowledge of imprinted polymer-based electrochemical sensors, for the detection of pesticides, metal ions and waterborne pathogenic bacteria, focusing on the period the last 5 years (citation of 78 papers published in 2017-2021, ie 63% of total citations). MIP-based electrochemical sensors exhibit low limit of detection, high selectivity, high sensitivity and low cost. Herein, we focused on the timely topics of water pollution by organics, inorganics and micro-organisms represented by pesticides, metal ions and bacteria, respectively. We put the emphasis on the design of imprinted polymers and their composites and coatings by radical polymerization, oxidative polymerization of conjugated monomers or sol-gel chemistry. Whilst most imprinted polymers are used in conjunction with differential pulse or square wave voltammetry for sensing organics and metal ions, electrochemical impedance spectroscopy (EIS) appears as the chief technique for detecting bacteria. This successful combination of EIS and imprinting technology should be harnessed in the coming years in the case of bacteria. Interestingly, bacteria are not always probed by bacteria-imprinted polymers; we report here their detection by monitoring specific (macro)molecules that reflect bacterial activity, for example quorum sensing signaling molecules or flagella proteins. If much has been developed in the past decade with glassy carbon or gold electrodes, it is clear that carbon paste electrodes of imprinted polymers are more and more investigated due to their versatility. Shortlisted case studies were critically reviewed and discussed; clearly a plethora of tricky strategies of designing selective electrochemical sensors are offered to “Imprinters”. We anticipate this review will be of interest to experts and new comers in the field who are paying time and effort combining electrochemical sensors with MIP technology.

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“…MIP-based optical sensors have been one of the most preferred technologies by researchers, which has greatly broadened the field of sensors for MIPs due to the simplicity of preparation, low achievable detection limits, and good visualization of expected effects. Nowadays, with the rapid development of nanomaterial types, materials such as quantum dots (Bhogal et al, 2020), magnetic nanoparticles (Chepyala, 2020), nanosilver/gold (Mahmoudpour et al, 2020), metal-organic frameworks (Svitkova and Palchetti, 2020), and graphene oxide (Pandey et al, 2020) exhibit their unique optical properties of narrow emission and resistance to fluorescence bursting, which have great potential for fluorescent sensors, probes and labels. For instance: Cao et al (2020) established a sensitive fluorescence sensor for the detection of octopamine (OA).…”

Section: Mip-based Optical Sensorsmentioning

confidence: 99%

Recent Advances and Future Trends in the Detection of Contaminants by Molecularly Imprinted Polymers in Food Samples

Gao

Chen

et al. 2020

Front. Chem.

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Drug residues, organic dyes, heavy metals, and other chemical pollutants not only cause environmental pollution, but also have a serious impact on food safety. Timely and systematic summary of the latest scientific advances is of great importance for the development of new detection technologies. In particular, molecularly imprinted polymers (MIPs) can mimic antibodies, enzymes and other biological molecules to recognize, enrich, and separate contaminants, with specific recognition, selective adsorption, high affinity, and strong resistance characteristics. Therefore, MIPs have been widely used in chemical analysis, sensing, and material adsorption. In this review, we first describe the basic principles and production processes of molecularly imprinted polymers. Secondly, an overview of recent applications of molecularly imprinted polymers in sample pre-treatment, sensors, chromatographic separation, and mimetic enzymes is highlighted. Finally, a brief assessment of current technical issues and future trends in molecularly imprinted polymers is also presented.

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Nanomaterial-based molecularly imprinted polymers for pesticides detection: Recent trends and future prospects

Cited by 122 publications

References 99 publications

Enzymes and Their Forms Used in Detection of Organophosphorus Compounds

Enzymes and Their Forms Used in Detection of Organophosphorus Compounds

Towards Clean and Safe Water: A Review on the Emerging Role of Imprinted Polymer-Based Electrochemical Sensors

Recent Advances and Future Trends in the Detection of Contaminants by Molecularly Imprinted Polymers in Food Samples

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