Nanocatalysts for Biosensing Application

A special issue of Biosensors (ISSN 2079-6374). This special issue belongs to the section "Optical and Photonic Biosensors".

Deadline for manuscript submissions: closed (31 January 2024) | Viewed by 5193

Special Issue Editors


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Guest Editor
Centro de Investigación en Materiales Avanzados S. C., Complejo Industrial Chihuahua, Chihuahua 31136, Chihuahua, Mexico
Interests: catalysis and electrocatalysis; synthesis nanostructured materials for applications in hydrocarbon hydrodesulfurization; synthesis of nanomaterials for energy conversion and storage; development of metal-air batteries; mesoporous materials applications as supports, absorbents and molecular sieves; aerogels of pure silicon oxides and in composites for applications such as thermal and acoustic insulation; activated carbon as supports for catalysts, absorbers in filters for gases, air and water

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Guest Editor
Centro de Investigación y Desarrollo Tecnológico en Electroquímica S.C, Pedro Escobedo, Mexico
Interests: synthesis of nanomaterials for energy conversion and storage; electrochemical recovery of industrial waste for energy conversion; development of metal–air batteries development of micro- and nanodevices for energy conversion and storage

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Guest Editor
Facultad de Ingeniería, División de Investigación y Posgrado, Universidad Autónoma de Querétaro, Querétaro C.P. 76010, Mexico
Interests: synthesis of nanomaterials for energy conversion and storage; development of metal–air batteries; development of micro- and nanodevices for energy conversion and storage; biosensors

Special Issue Information

Dear Colleagues,

At this time, the separation of great technological advances from nanotechnology is unthinkable, especially due to the development of nanomaterials with modular properties that can adapt to multiple global solutions related to energy, food safety, health, detection and remediation of contaminants, diagnosis, etc., all being areas of great impact. In recent years, the trend to develop rapid response techniques that allow for portable and flexible sensors has increased due to many of the base devices being commonly used in different areas, such as computers, cell phones, tablets, watches, clothing, etc. Others have been used in monitoring and detection interfaces for both biometric parameters and contaminating or toxic elements. The current COVID-19 pandemic, apart from its negative consequences on humanity, has also been a turning point for this fast race to develop monitoring and sensing systems. The backbone supporting such development is channeled through electrochemical detection devices based on nanocatalysts, which can be of enzymatic or nonenzymatic principle and yet provide an alternative that has opened an interesting area of research and development with high possibilities of real scaling applications globally. This Special Issue focuses on spearhead research allowing for the development of future devices where nanocatalysts expand the applicability of biosensors to touch health, food safety, toxicology, etc. The topics of interest are:

  • Inorganic nanocatalysts for disease detection;
  • Hybrid nanocatalysts in biosensors;
  • Nanocatalysts for the detection of emerging drugs;
  • Emerging pollutants;
  • Neurotransmitter sensors;
  • Nanomaterials for sensing cell damage DNA or ROS.

Dr. Lorena Álvarez-Contreras
Dr. Noé Arjona
Dr. Minerva Guerra Balcázar
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Biosensors is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • nanocatalyst
  • biosensor
  • electrochemical detection
  • wearable nanobiosensors
  • microfluidic
  • diagnostics
  • point on care systems
  • biomarkers
  • advanced nanomaterials for biosensors

Published Papers (2 papers)

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Research

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12 pages, 3263 KiB  
Article
Comparative Colorimetric Sensor Based on Bi-Phase γ-/α-Fe2O3 and γ-/α-Fe2O3/ZnO Nanoparticles for Lactate Detection
by Ricardo A. Escalona-Villalpando, Karen Viveros-Palma, Fabiola I. Espinosa-Lagunes, José A. Rodríguez-Morales, Luis G. Arriaga, Florika C. Macazo, Shelley D. Minteer and Janet Ledesma-García
Biosensors 2022, 12(11), 1025; https://doi.org/10.3390/bios12111025 - 16 Nov 2022
Cited by 3 | Viewed by 1892
Abstract
This work reports on Fe2O3 and ZnO materials for lactate quantification. In the synthesis, the bi-phase γ-/α-Fe2O3 and γ-/α-Fe2O3/ZnO nanoparticles (NPs) were obtained for their application in a lactate colorimetric sensor. The crystalline [...] Read more.
This work reports on Fe2O3 and ZnO materials for lactate quantification. In the synthesis, the bi-phase γ-/α-Fe2O3 and γ-/α-Fe2O3/ZnO nanoparticles (NPs) were obtained for their application in a lactate colorimetric sensor. The crystalline phases of the NPs were analyzed by XRD and XPS techniques. S/TEM images showed spheres with an 18 nm average and a needle length from 125 to 330 nm and 18 nm in diameter. The γ-/α-Fe2O3 and γ-/α-Fe2O3/ZnO were used to evaluate the catalytic activity of peroxidase with the substrate 3,3,5,5-tetramethylbenzidine (TMB), obtaining a linear range of 50 to 1000 μM for both NPs, and a 4.3 μM and 9.4 μM limit of detection (LOD), respectively. Moreover, γ-/α-Fe2O3 and γ-/α-Fe2O3/ZnO/lactate oxidase with TMB assays in the presence of lactate showed a linear range of 50 to 1000 µM, and both NPs proved to be highly selective in the presence of interferents. Finally, a sample of human serum was also tested, and the results were compared with a commercial lactometer. The use of ZnO with Fe2O3 achieved a greater response toward lactate oxidation reaction, and has implementation in a lactate colorimetric sensor using materials that are economically accessible and easy to synthesize. Full article
(This article belongs to the Special Issue Nanocatalysts for Biosensing Application)
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Review

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24 pages, 2619 KiB  
Review
Nanozymes towards Personalized Diagnostics: A Recent Progress in Biosensing
by Chitra Padmakumari Kurup and Minhaz Uddin Ahmed
Biosensors 2023, 13(4), 461; https://doi.org/10.3390/bios13040461 - 5 Apr 2023
Cited by 17 | Viewed by 2810
Abstract
This review highlights the recent advancements in the field of nanozymes and their applications in the development of point-of-care biosensors. The use of nanozymes as enzyme-mimicking components in biosensing systems has led to improved performance and miniaturization of these sensors. The unique properties [...] Read more.
This review highlights the recent advancements in the field of nanozymes and their applications in the development of point-of-care biosensors. The use of nanozymes as enzyme-mimicking components in biosensing systems has led to improved performance and miniaturization of these sensors. The unique properties of nanozymes, such as high stability, robustness, and surface tunability, make them an attractive alternative to traditional enzymes in biosensing applications. Researchers have explored a wide range of nanomaterials, including metals, metal oxides, and metal–organic frameworks, for the development of nanozyme-based biosensors. Different sensing strategies, such as colorimetric, fluorescent, electrochemical and SERS, have been implemented using nanozymes as signal-producing components. Despite the numerous advantages, there are also challenges associated with nanozyme-based biosensors, including stability and specificity, which need to be addressed for their wider applications. The future of nanozyme-based biosensors looks promising, with the potential to bring a paradigm shift in biomolecular sensing. The development of highly specific, multi-enzyme mimicking nanozymes could lead to the creation of highly sensitive and low-biofouling biosensors. Integration of nanozymes into point-of-care diagnostics promises to revolutionize healthcare by improving patient outcomes and reducing costs while enhancing the accuracy and sensitivity of diagnostic tools. Full article
(This article belongs to the Special Issue Nanocatalysts for Biosensing Application)
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