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Flexible and Stretchable Sensors and Actuators for Engineering Applications

A special issue of Sensors (ISSN 1424-8220). This special issue belongs to the section "Physical Sensors".

Deadline for manuscript submissions: closed (30 November 2024) | Viewed by 7522

Special Issue Editor


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Guest Editor
Department of Textile and Clothing Technology, Hochschule Niederrhein University of Applied Sciences, Webschulstrasse 31, 41065 Moenchengladbach, Germany
Interests: smart textiles; e-textiles; electro-conductive coatings; textile electronic components; functional multilayer systems
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Special Issue Information

Dear Colleagues,

Flexible and stretchable sensors and actuators are a growing and fascinating interdisciplinary research field with enormous potential in the future due to their portability, lightweight and enhanced integration possibilities. The most prominent examples can be found in the area of wearable and consumer electronics: flexible displays, clothing systems with integrated electrodes, smart patches for wound monitoring as well as the smart packaging of consumer goods. The application fields range from healthcare and well-being, personal protective equipment and sports to automotive and structural health monitoring in buildings and construction, among other fields.

One of the most crucial issues to be solved is the identification of reliable materials and processes to develop flexible and stretchable sensors and actuators, and, of course, adequate characterization methods. Research institutes, universities and commercial companies currently meet this challenge and are developing promising materials and production and testing methods.

The purpose of this Special Issue is to publish high-quality research articles as well as reviews on the above challenges by combining experimental and theoretical methods to address recent achievements in the development and characterization of the addressed components, as well as their potential applications.

Prof. Dr. Anne Schwarz-Pfeiffer
Guest Editor

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Keywords

  • smart textiles
  • smart packaging
  • flexible electronics for healthcare
  • stretchable actuators
  • smart patches
  • organic electronics
  • flexible displays
  • sustainable materials and processes for flexible and stretchable electronics

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Published Papers (2 papers)

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Research

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35 pages, 18128 KiB  
Article
Straightforward Production Methods for Diverse Porous PEDOT:PSS Structures and Their Characterization
by Rike Brendgen, Thomas Grethe and Anne Schwarz-Pfeiffer
Sensors 2024, 24(15), 4919; https://doi.org/10.3390/s24154919 - 29 Jul 2024
Cited by 2 | Viewed by 1456
Abstract
Porous conductive polymer structures, in particular Poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) structures, are gaining in importance due to their versatile fields of application as sensors, hydrogels, or supercapacitors, to name just a few. Moreover, (porous) conducting polymers have become of interest for wearable and [...] Read more.
Porous conductive polymer structures, in particular Poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) structures, are gaining in importance due to their versatile fields of application as sensors, hydrogels, or supercapacitors, to name just a few. Moreover, (porous) conducting polymers have become of interest for wearable and smart textile applications due to their biocompatibility, which enables applications with direct skin contact. Therefore, there is a huge need to investigate distinct, straightforward, and textile-compatible production methods for the fabrication of porous PEDOT:PSS structures. Here, we present novel and uncomplicated approaches to producing diverse porous PEDOT:PSS structures and characterize them thoroughly in terms of porosity, electrical resistance, and their overall appearance. Production methods comprise the incorporation of micro cellulose, the usage of a blowing agent, creating a sponge-like structure, and spraying onto a porous base substrate. This results in the fabrication of various porous structures, ranging from thin and slightly porous to thick and highly porous. Depending on the application, these structures can be modified and integrated into electronic components or wearables to serve as porous electrodes, sensors, or other functional devices. Full article
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13 pages, 4476 KiB  
Perspective
Flexible Mechanical Sensors for Plant Growth Monitoring: An Emerging Area for Smart Agriculture
by Thi Thu Hien Phan, Thi Mai Vi Ngo and Hoang-Phuong Phan
Sensors 2024, 24(24), 7995; https://doi.org/10.3390/s24247995 - 14 Dec 2024
Viewed by 5073
Abstract
The last decade has seen significant progress in the development of flexible electronics and sensors, particularly for display technologies and healthcare applications. Advancements in scalable manufacturing, miniaturization, and integration have further extended the use of this new class of devices to smart agriculture, [...] Read more.
The last decade has seen significant progress in the development of flexible electronics and sensors, particularly for display technologies and healthcare applications. Advancements in scalable manufacturing, miniaturization, and integration have further extended the use of this new class of devices to smart agriculture, where multimodal sensors can be seamlessly attached to plants for continuous and remote monitoring. Among the various types of sensing devices for agriculture, flexible mechanical sensors have emerged as promising candidates for monitoring vital parameters, including growth rates and water flow, providing a new avenue for understanding plant health and growth under varied environmental conditions. This perspective provides a snapshot of recent progress in this exciting and unconventional area of research and highlights potential opportunities for the future. Full article
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