Advances in nanomaterial-based electrochemical biosensors for the detection of microbial toxins, pathogenic bacteria in food matrices

Gupta, Riya; Raza, Nadeem; Bhardwaj, Sanjeev K.; Vikrant, Kumar; Kim, Ki‐Hyun; Bhardwaj, Neha

doi:10.1016/j.jhazmat.2020.123379

Cited by 165 publications

(56 citation statements)

References 171 publications

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“…EIS-based sensors have been reported for numerous applications such as the detection of toxins, polluting agents, water contamination, bacteria, cancer, and other disease biomarkers [ 77 , 78 ]. Moreover, several biosensors with non-electroactive biological recognition elements have been designed using EIS as the transducing method.…”

Section: Detection Methodsmentioning

confidence: 99%

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

Zheng

Khaoulani

Ktari³

et al. 2021

Sensors

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This 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 last five years. MIP-based electrochemical sensors exhibit low limits of detection (LOD), high selectivity, high sensitivity and low cost. 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 or their corresponding proteins. Interestingly, bacteria could also be probed via their 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 that this review will be of interest to experts and newcomers in the field who are paying time and effort combining electrochemical sensors with MIP technology.

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Section: Detection Methodsmentioning

confidence: 99%

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

Zheng

Khaoulani

Ktari³

et al. 2021

Sensors

View full text Add to dashboard Cite

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“…Biosensors can be applied for many other clinical diagnostic purposes, such as cholesterol, markers related to cardiovascular diseases, biomarkers of cancer or tumors, allergic responses, disease-causing bacteria, viruses, and fungi infections [38][39][40][41]. Aside from that, biosensors can be employed for bacteria and virus detection in food and water, which are potential sources of diseases [42,43]. Zhao et al fabricated a low-cost, portable microfluidic chemiresistive biosensor based on monolayer graphene, AuNPs, and streptavidin-antibody system for the rapid in-situ detection of E. coli.…”

Section: Biosensorsmentioning

confidence: 99%

Biosensors for the Detection of Bacterial and Viral Clinical Pathogens

Henríquez

Brenes-Acuña

Castro-Rojas

et al. 2020

Sensors

113

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Biosensors are measurement devices that can sense several biomolecules, and are widely used for the detection of relevant clinical pathogens such as bacteria and viruses, showing outstanding results. Because of the latent existing risk of facing another pandemic like the one we are living through due to COVID-19, researchers are constantly looking forward to developing new technologies for diagnosis and treatment of infections caused by different bacteria and viruses. Regarding that, nanotechnology has improved biosensors’ design and performance through the development of materials and nanoparticles that enhance their affinity, selectivity, and efficacy in detecting these pathogens, such as employing nanoparticles, graphene quantum dots, and electrospun nanofibers. Therefore, this work aims to present a comprehensive review that exposes how biosensors work in terms of bacterial and viral detection, and the nanotechnological features that are contributing to achieving a faster yet still efficient COVID-19 diagnosis at the point-of-care.

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“…During recent years, the evolution of nanomaterials-based analytical methods has made remarkable advances for various important applications such as fundamental biological analysis [ 1 , 2 ], medical and clinical diagnostics [ 3 , 4 , 5 ], pharmaceutical analysis [ 6 , 7 , 8 ], monitoring of health [ 9 , 10 , 11 ], food safety [ 12 , 13 , 14 ], and environmental monitoring [ 15 , 16 , 17 ]. Monitoring the different hazardous pollutants in surrounding environmental elements (air, land, and water) is one of the most important aspects of public health and environmental care.…”

Section: Introductionmentioning

confidence: 99%

Gold–Carbon Nanocomposites for Environmental Contaminant Sensing

et al. 2021

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The environmental crisis, due to the rapid growth of the world population and globalisation, is a serious concern of this century. Nanoscience and nanotechnology play an important role in addressing a wide range of environmental issues with innovative and successful solutions. Identification and control of emerging chemical contaminants have received substantial interest in recent years. As a result, there is a need for reliable and rapid analytical tools capable of performing sample analysis with high sensitivity, broad selectivity, desired stability, and minimal sample handling for the detection, degradation, and removal of hazardous contaminants. In this review, various gold–carbon nanocomposites-based sensors/biosensors that have been developed thus far are explored. The electrochemical platforms, synthesis, diverse applications, and effective monitoring of environmental pollutants are investigated comparatively.

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Advances in nanomaterial-based electrochemical biosensors for the detection of microbial toxins, pathogenic bacteria in food matrices

Cited by 165 publications

References 171 publications

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

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

Biosensors for the Detection of Bacterial and Viral Clinical Pathogens

Gold–Carbon Nanocomposites for Environmental Contaminant Sensing

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