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Biosensors
Special Issues
Electrochemical (Bio)Sensors and Energy Autonomous Sensing System
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Electrochemical (Bio)Sensors and Energy Autonomous Sensing System

A special issue of Biosensors (ISSN 2079-6374). This special issue belongs to the section "Biosensor and Bioelectronic Devices".

Deadline for manuscript submissions: closed (31 August 2022) | Viewed by 8594

Special Issue Editors

Dr. Libu Manjakkal

E-Mail Website
Guest Editor
Electronics and Nanoscale Engineering, James Watt School of Engineering, University of Glasgow, G12 8LT, UK
Interests: electrochemcial sensors; energy storage; wearable energy storage; flexible electronics; energy autonomus sensing system
Prof. Dr. Fabiana Arduini

E-Mail Website
Guest Editor
Department of Chemical Sciences and Technologies, Università degli Studi di Roma Tor Vergata, Rome, Italy
Interests: electrochemical sensors; screen-printed electrodes; paper-based devices; biosensors based on enzyme inhibition; nanomaterial-based (bio)sensors; carbon black as electrode modifiers; (bio)sensors for environmental and security applications
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

This Special Issue focuses on advanced electrochemical biosensing technologies for environmental pollution (soil, water, and air), food quality, and wearable health monitoring. From an operational point of view, board energy storage/generator devices to power sensors and their related components are a fundamental component of the effective performances of electrochemical (bio)sensors. Indeed, the integration of energy systems with electrochemical (bio)sensors and energy systems will lead to advanced energy-autonomous sensing platforms for the online monitoring of various target analytes.

This Special Issue covers various types of sensors (amperometric, potentiometric, chemi-resistive, and capacitive) developed for applications in several relevant fields. For the continuous monitoring of target analytes, the integration of sensors with related data analysis and acquisition circuits and communication components is necessary. The overriding goal of this issue is the collection of research and review articles that highlight the current trends using a multi-disciplinary approach involving energy-autonomous sensing systems, smart electrochemical (bio)sensors, and multi-sensors combined with smart data analysis and communication for environmental, agrifood, and biomedical sectors.

Dr. Libu Manjakkal
Prof. Dr. Fabiana Arduini
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

  • electrochemical sensors
  • solid state sensors
  • ion sensitive field effect transistors
  • flexible/non-flexible/stretchable sensors
  • energy generators (mechanical, chemical, and light)
  • energy storage (batteries and supercapacitors)
  • self-powered electrochemical sensors
  • textile-based electrochemical/bio sensors
  • textile-based energy system
  • wearable energy system
  • electronic-skin for electrochemical/bio sensing

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Published Papers (2 papers)

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15 pages, 10934 KiB  
Article
Detection of Oxytetracycline Using an Electrochemical Label-Free Aptamer-Based Biosensor
by Sanaz Akbarzadeh, Habibollah Khajehsharifi and Saeedeh Hajihosseini
Biosensors 2022, 12(7), 468; https://doi.org/10.3390/bios12070468 - 28 Jun 2022
Cited by 23 | Viewed by 3384
Abstract
One of the most effective ways to detect and measure antibiotics is to detect their biomarkers. The best biomarker for the control and detection of oxytetracycline (OTC) is the OTC-specific aptamer. In this study, a novel, rapid, and label-free aptamer-based electrochemical biosensor (electrochemical [...] Read more.
One of the most effective ways to detect and measure antibiotics is to detect their biomarkers. The best biomarker for the control and detection of oxytetracycline (OTC) is the OTC-specific aptamer. In this study, a novel, rapid, and label-free aptamer-based electrochemical biosensor (electrochemical aptasensor) was designed for OTC determination based on a newly synthesized nanocomposite including multi-walled carbon nanotubes (MWCNTs), gold nanoparticles (AuNPs), reduced graphene oxide (rGO), and chitosan (CS), as well as nanosheets to modify a glassy carbon electrode, which extremely enhanced electrical conductivity and increased the electrode surface to bind well with the amine-terminated OTC-specific aptamer through self-assembly. The (MWCNTs-AuNPs/CS-AuNPs/rGO-AuNPs) nanocomposite modified electrode was synthesized using a layer- by-layer modification method which had the highest efficiency for better aptamer stabilization. Differential pulse voltammetry (DPV), cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), and scanning electron microscopy (SEM) techniques were used to investigate and evaluate the electrochemical properties and importance of the synthesized nanocomposite in different steps. The designed aptasensor was very sensitive for measuring the OTC content of milk samples, and the results were compared with those of our previously published paper. Based on the calibration curve, the detection limit was 30.0 pM, and the linear range was 1.00–540 nM for OTC. The repeatability and reproducibility of the aptasensor were obtained for 10.0 nM of OTC with a relative standard deviation (RSD%) of 2.39% and 4.01%, respectively, which were not affected by the coexistence of similar derivatives. The measurement in real samples with the recovery range of 93.5% to 98.76% shows that this aptasensor with a low detection limit and wide linear range can be a good tool for detecting OTC. Full article
(This article belongs to the Special Issue Electrochemical (Bio)Sensors and Energy Autonomous Sensing System)
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23 pages, 6629 KiB  
Article
Portable Respiration Monitoring System with an Embroidered Capacitive Facemask Sensor
by Mitar Simić, Adrian K. Stavrakis, Ankita Sinha, Velibor Premčevski, Branko Markoski and Goran M. Stojanović
Biosensors 2022, 12(5), 339; https://doi.org/10.3390/bios12050339 - 15 May 2022
Cited by 21 | Viewed by 4391
Abstract
Respiration monitoring is a very important indicator of health status. It can be used as a marker in the recognition of a variety of diseases, such as sleep apnea, asthma or cardiac arrest. The purpose of the present study is to overcome limitations [...] Read more.
Respiration monitoring is a very important indicator of health status. It can be used as a marker in the recognition of a variety of diseases, such as sleep apnea, asthma or cardiac arrest. The purpose of the present study is to overcome limitations of the current state of the art in the field of respiration monitoring systems. Our goal was the development of a lightweight handheld device with portable operation and low power consumption. The proposed approach includes a textile capacitive sensor with interdigitated electrodes embroidered into the facemask, integrated with readout electronics. Readout electronics is based on the direct interface of the capacitive sensor and a microcontroller through just one analog and one digital pin. The microcontroller board and sensor are powered by a smartphone or PC through a USB cable. The developed mobile application for the Android™ operating system offers reliable data acquisition and acts as a bridge for data transfer to the remote server. The embroidered sensor was initially tested in a humidity-controlled chamber connected to a commercial impedance analyzer. Finally, in situ testing with 10 volunteering subjects confirmed stable operation with reliable respiration monitoring. Full article
(This article belongs to the Special Issue Electrochemical (Bio)Sensors and Energy Autonomous Sensing System)
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