Biosensors for the Detection of Bacterial and Viral Clinical Pathogens

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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Biosensors for the Detection of Bacterial and Viral Clinical Pathogens and COVID-19 Diagnosis

10.20944/preprints202011.0156.v1 ◽

2020 ◽

Author(s):

Luis Castillo-Henríquez ◽

Mariana Brenes-Acuña ◽

Arianna Castro-Rojas ◽

Rolando Cordero-Salmerón ◽

Mary Lopretti ◽

...

Keyword(s):

Quantum Dots ◽

New Technologies ◽

Point Of Care ◽

Graphene Quantum Dots ◽

Electrospun Nanofibers ◽

Comprehensive Review ◽

Measurement Devices ◽

Clinical Pathogens ◽

And Performance ◽

The One

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 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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S,N co-doped graphene quantum dots-induced ascorbic acid fluorescent sensor: Design, characterization and performance

Food Chemistry ◽

10.1016/j.foodchem.2019.05.169 ◽

2019 ◽

Vol 295 ◽

pp. 530-536 ◽

Cited By ~ 25

Author(s):

Hossein Safardoust-Hojaghan ◽

Omid Amiri ◽

Mohammad Hassanpour ◽

Mokhtar Panahi-Kalamuei ◽

Hossein Moayedi ◽

...

Keyword(s):

Quantum Dots ◽

Ascorbic Acid ◽

Fluorescent Sensor ◽

Graphene Quantum Dots ◽

Sensor Design ◽

Doped Graphene ◽

And Performance ◽

Co Doped

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Applications of Integrated IoT-Fog-Cloud Systems to Smart Cities: A Survey

Electronics ◽

10.3390/electronics10232918 ◽

2021 ◽

Vol 10 (23) ◽

pp. 2918

Author(s):

Nader Mohamed ◽

Jameela Al-Jaroodi ◽

Sanja Lazarova-Molnar ◽

Imad Jawhar

Keyword(s):

Smart City ◽

New Technologies ◽

Smart Cities ◽

Fog Computing ◽

Optimization Methods ◽

Cloud Services ◽

Security Measures ◽

Operations And Maintenance ◽

And Performance ◽

The One

Several cities have recently moved towards becoming smart cities for better services and quality of life for residents and visitors, with: optimized resource utilization; increased environmental protection; enhanced infrastructure operations and maintenance; and strong safety and security measures. Smart cities depend on deploying current and new technologies and different optimization methods to enhance services and performance in their different sectors. Some of the technologies assisting smart city applications are the Internet of Things (IoT), fog computing, and cloud computing. Integrating these three to serve one system (we will refer to it as integrated IoT-fog-cloud system (iIFC)) creates an advanced platform to develop and operate various types of smart city applications. This platform will allow applications to use the best features from the IoT devices, fog nodes, and cloud services to deliver best capabilities and performance. Utilizing this powerful platform will provide many opportunities for enhancing and optimizing applications in energy, transportation, healthcare, and other areas. In this paper we survey various applications of iIFCs for smart cities. We identify different common issues associated with utilizing iIFCs for smart city applications. These issues arise due to the characteristics of iIFCs on the one side and the requirements of different smart city applications on the other. In addition, we outline the main requirements to effectively utilize iIFCs for smart city applications. These requirements are related to optimization, networking, and security.

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Do amino acid functionalization stratagems on carbonaceous quantum dots imply multiple applications? A comprehensive review

RSC Advances ◽

10.1039/d1ra05571b ◽

2021 ◽

Vol 11 (55) ◽

pp. 35028-35045

Author(s):

Pavithra V. Ravi ◽

Vinodhini Subramaniyam ◽

Ajay Pattabiraman ◽

Moorthi Pichumani

Keyword(s):

Quantum Dots ◽

Amino Acid ◽

Graphene Quantum Dots ◽

Functionalized Graphene ◽

Schematic Representation ◽

Comprehensive Review

A schematic representation of amino acid-functionalized graphene quantum dots.

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One-pot synthesis of sulfur-doped graphene quantum dots as a novel fluorescent probe for highly selective and sensitive detection of lead(ii)

RSC Advances ◽

10.1039/c6ra10836a ◽

2016 ◽

Vol 6 (74) ◽

pp. 69977-69983 ◽

Cited By ~ 45

Author(s):

Shiyue Bian ◽

Chao Shen ◽

Hong Hua ◽

Lin Zhou ◽

Hailin Zhu ◽

...

Keyword(s):

Crystal Structure ◽

Quantum Dots ◽

Surface Chemistry ◽

Graphene Quantum Dots ◽

Sensitive Detection ◽

Monolayer Graphene ◽

One Pot ◽

Doped Graphene ◽

One Step ◽

The One

A facile strategy was developed for the one-step synthesis of S-GQDs with a monolayer-graphene crystal structure. The change of surface chemistry by S-doping resulted in selective and sensitive detection of Pb2+.

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