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Biosensors
Special Issues
Flexible Electronics for Biosensing
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Flexible Electronics for Biosensing

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

Deadline for manuscript submissions: 25 May 2024 | Viewed by 652

Special Issue Editor

Dr. Yuanjing Lin

E-Mail Website
Guest Editor
School of Microelectronics, Southern University of Science and Technology, Shenzhen 518055, China
Interests: flexible electronics; biosensors; electrochemical devices; integrated systems

Special Issue Information

Dear Colleagues,

Intensive studies and significant research efforts have been devoted to flexible devices used in biosensing applications. Innovations in materials and structural engineering to achieve high-performance biosensing devices on flexible platforms and the system-level integration of functional devices are required for practical and advanced applications in fields of healthcare, diagnostic, environmental monitoring, and Internet of Things, among others. To realize reliable biomarkers analysis with flexible electronics, novel techniques with the merits of high compatibility with flexible and functional materials offer promising strategies for the enhancement of biosensing performance, especially on the key factors of sensitivity, selectivity, and stability.

This Special Issue in Biosensors welcomes novel perspectives and research advances on the progress of flexible engineering technologies to revolutionize the fabrication of biosensing devices and integrated systems. Both review articles and original research articles will be considered.

This Special Issue focuses on, but is not limited to, the following topics:

  1. Materials and structural engineering to realize flexible biosensors;
  2. Novel techniques for integrated sensing platforms;
  3. The development of flexible biosensing devices and systems;
  4. Wearable electronics towards reliable body computing;
  5. Biosensing electronics for artificial intelligent applications.

Dr. Yuanjing Lin
Guest Editor

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

  • biosensing
  • flexible electronics
  • wearables
  • integrated systems
  • biomarkers analysis
  • healthcare
  • environmental monitoring
  • internet of things

Published Papers (1 paper)

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Research

12 pages, 22801 KiB  
Article
Wireless Flexible System for Highly Sensitive Ammonia Detection Based on Polyaniline/Carbon Nanotubes
by Yi Zhuang, Xue Wang, Pengfei Lai, Jin Li, Le Chen, Yuanjing Lin and Fei Wang
Biosensors 2024, 14(4), 191; https://doi.org/10.3390/bios14040191 - 13 Apr 2024
Viewed by 370
Abstract
Ammonia (NH3) is a harmful atmospheric pollutant and an important indicator of environment, health, and food safety conditions. Wearable devices with flexible gas sensors offer convenient real-time NH3 monitoring capabilities. A flexible ammonia gas sensing system to support the internet [...] Read more.
Ammonia (NH3) is a harmful atmospheric pollutant and an important indicator of environment, health, and food safety conditions. Wearable devices with flexible gas sensors offer convenient real-time NH3 monitoring capabilities. A flexible ammonia gas sensing system to support the internet of things (IoT) is proposed. The flexible gas sensor in this system utilizes polyaniline (PANI) with multiwall carbon nanotubes (MWCNTs) decoration as a sensitive material, coated on a silver interdigital electrode on a polyethylene terephthalate (PET) substrate. Gas sensors are combined with other electronic components to form a flexible electronic system. The IoT functionality of the system comes from a microcontroller with Wi-Fi capability. The flexible gas sensor demonstrates commendable sensitivity, selectivity, humidity resistance, and long lifespan. The experimental data procured from the sensor reveal a remarkably low detection threshold of 0.3 ppm, aligning well with the required specifications for monitoring ammonia concentrations in exhaled breath gas, which typically range from 0.425 to 1.8 ppm. Furthermore, the sensor demonstrates a negligible reaction to the presence of interfering gases, such as ethanol, acetone, and methanol, thereby ensuring high selectivity for ammonia detection. In addition to these attributes, the sensor maintains consistent stability across a range of environmental conditions, including varying humidity levels, repeated bending cycles, and diverse angles of orientation. A portable, stable, and effective flexible IoT system solution for real-time ammonia sensing is demonstrated by collecting data at the edge end, processing the data in the cloud, and displaying the data at the user end. Full article
(This article belongs to the Special Issue Flexible Electronics for Biosensing)
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