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Nanomaterials
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Bioelectronics and Related Applications in Nanoscale
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Bioelectronics and Related Applications in Nanoscale

A special issue of Nanomaterials (ISSN 2079-4991). This special issue belongs to the section "Nanoelectronics, Nanosensors and Devices".

Deadline for manuscript submissions: closed (30 November 2022) | Viewed by 2489

Special Issue Editors

Prof. Dr. Krishna Bisetty

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Guest Editor
Department of Chemistry, Durban University of Technology, Durban, South Africa
Interests: computational chemistry; nanotechnology; electrochemistry; biosensors; separation sciences
Dr. Suvardhan Kanchi

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Co-Guest Editor
Department of Chemistry, Sambhram Institute of Technology, via Jalahalli East, M.S. Palya, Bengaluru 560097, India
Interests: electroanalytical chemistry; nanoelectrochemistry; biosensors; separation sciences; smart materials for device fabrication

Special Issue Information

Dear Colleagues,

The use of nanomaterials as a link between the biological and electronic worlds has revolutionised our understanding of how to develop functioning bioelectronic devices and opened up new possibilities for bioelectronics in the future. The use of nanoparticles as a versatile interface in bioelectronics has recently emerged as a highly promising method to solve technological obstacles in the management and regulation of communication between biological and electronic systems. As a result, the interfacing of nanomaterials is generating a broad platform of functional units for bioelectronic interfaces, and it is starting to have a substantial impact on a variety of sectors within the life sciences.

Parallel to advances in the usual use of nanotechnology to successfully combine the domains of biology and electronics, a new branch of switchable bioelectronics based on signal-responsive materials and related interfaces is developing. Switchable bioelectronics are functional interfaces responding to molecular cues that can mimic and adapt to their natural environment as well as change their physical and chemical properties on demand. These switchable interfaces are crucial for developing a variety of technologies to better understand the function and features of biological systems, such as in biocatalysis, ion transfer control, and molecular recognition in bioelectronics.

This Special Issue will focus on the use of functional nanomaterials to improve electrical interfacing between biological systems and electronics as well as the creation of a dynamic interface that can respond to real-world physical and chemical changes. The creation of such a dynamic interface allows researchers to better understand how living systems explore and respond to changes in their environment as well as control and tune biomolecular interactions in limited spaces utilising external physical and chemical inputs.

Prof. Dr. Krishna Bisetty
Dr. Suvardhan Kanchi
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. Nanomaterials is an international peer-reviewed open access semimonthly 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 2900 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

  • nanomaterials
  • bioelectronic devices
  • functionalization
  • electronic systems
  • Interface
  • biomolecules/biomarkers

Published Papers (2 papers)

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Research

13 pages, 2673 KiB  
Article
Ag-Decorated Vertically Aligned ZnO Nanorods for Non-Enzymatic Glucose Sensor Applications
by Yu-Hsuan Lin, Chandrasekar Sivakumar, Babu Balraj, Gowtham Murugesan, Senthil Kumar Nagarajan and Mon-Shu Ho
Nanomaterials 2023, 13(4), 754; https://doi.org/10.3390/nano13040754 - 17 Feb 2023
Cited by 7 | Viewed by 2058
Abstract
The non-enzymatic glucose sensing response of pure and Ag-decorated vertically aligned ZnO nanorods grown on Si substrates was investigated. The simple low-temperature hydrothermal method was employed to synthesize the ZnO NRs on the Si substrates, and then Ag decoration was achieved by sputtering. [...] Read more.
The non-enzymatic glucose sensing response of pure and Ag-decorated vertically aligned ZnO nanorods grown on Si substrates was investigated. The simple low-temperature hydrothermal method was employed to synthesize the ZnO NRs on the Si substrates, and then Ag decoration was achieved by sputtering. The crystal structure and surface morphologies were characterized by X-ray diffraction, field-emission scanning electron microscopy (FESEM), and transmission electron microscopy (TEM). The Ag incorporation on the ZnO NR surfaces was confirmed using EDS mapping and spectra. Furthermore, the chemical states, the variation in oxygen vacancies, and the surface modifications of Ag@ZnO were investigated by XPS analysis. Both the glucose/ZnO/Si and glucose/Ag@ZnO/Si device structures were investigated for their non-enzymatic glucose sensing performances with different glucose concentrations. Based on EIS measurements and amperometric analysis, the Ag@ZnO-NR-based glucose sensor device exhibited a better sensing ability with excellent stability over time than pure ZnO NRs. The Ag@ZnO NR glucose sensor device recorded 2792 µA/(mM·cm2) sensitivity with a lowest detection limit of 1.29 µM. Full article
(This article belongs to the Special Issue Bioelectronics and Related Applications in Nanoscale)
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12 pages, 3138 KiB  
Article
Boosting the Photocatalytic Ability of TiO2 Nanosheet Arrays for MicroRNA-155 Photoelectrochemical Biosensing by Titanium Carbide MXene Quantum Dots
by Bingdong Yan, Zike Cheng, Caiyan Lai, Bin Qiao, Run Yuan, Chide Zhang, Hua Pei, Jinchun Tu and Qiang Wu
Nanomaterials 2022, 12(20), 3557; https://doi.org/10.3390/nano12203557 - 11 Oct 2022
Cited by 5 | Viewed by 1636
Abstract
The electrodes of two-dimensional (2D) titanium dioxide (TiO2) nanosheet arrays were successfully fabricated for microRNA-155 detection. The (001) highly active crystal face was exposed to catalyze signaling molecules ascorbic acid (AA). Zero-dimensional (0D) titanium carbide quantum dots (Ti3C2 [...] Read more.
The electrodes of two-dimensional (2D) titanium dioxide (TiO2) nanosheet arrays were successfully fabricated for microRNA-155 detection. The (001) highly active crystal face was exposed to catalyze signaling molecules ascorbic acid (AA). Zero-dimensional (0D) titanium carbide quantum dots (Ti3C2Tx QDs) were modified to the electrode as co-catalysts and reduced the recombination rate of the charge carriers. Spectroscopic methods were used to determine the band structure of TiO2 and Ti3C2Tx QDs, showing that a type Ⅱ heterojunction was built between TiO2 and Ti3C2Tx QDs. Benefiting the advantages of materials, the sensing platform achieved excellent detection performance with a wide liner range, from 0.1 pM to 10 nM, and a low limit of detection of 25 fM (S/N = 3). Full article
(This article belongs to the Special Issue Bioelectronics and Related Applications in Nanoscale)
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