Semi-auxetic piezoresistive textronic

Abstract Auxetic textile sensors represent a new generation of wearable sensors, offering advantages such as high sensitivity, enhanced mechanical properties, and greater comfort due to their suitable physical features. Research in this field remains limited and is still in its nascent stages. In th...

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Main Authors: Milad Razbin, Sharhbanou Ehsanpour, Ali Akbar Gharehaghaji, Roohollah Bagherzadeh
Format: Article
Language:English
Published: Nature Portfolio 2025-02-01
Series:Scientific Reports
Subjects:
Online Access:https://doi.org/10.1038/s41598-024-83330-6
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author Milad Razbin
Sharhbanou Ehsanpour
Ali Akbar Gharehaghaji
Roohollah Bagherzadeh
author_facet Milad Razbin
Sharhbanou Ehsanpour
Ali Akbar Gharehaghaji
Roohollah Bagherzadeh
author_sort Milad Razbin
collection DOAJ
description Abstract Auxetic textile sensors represent a new generation of wearable sensors, offering advantages such as high sensitivity, enhanced mechanical properties, and greater comfort due to their suitable physical features. Research in this field remains limited and is still in its nascent stages. In this work, a piezoresistive sensor with a negative Poisson’s ratio was developed using the design concept of semi-auxetic yarn, where a stretchable band replaced the core to serve as a substrate for the piezoresistive sensors. A semi-auxetic piezoresistive textronic structure was created by stitching the sensors onto the substrate in a zig-zag pattern. Electromechanical analysis highlighted a trade-off between auxetic behaviour and sensitivity, with the highest sensitivity (−4.8) observed in a structure with a stitching length of 2 cm, and the highest auxeticity (−14.1) found in a structure with a stitching length of 3 cm. This type of piezoresistive textronic is suitable for applications such as yoga straps, driving safety belts, compression bandages, and breathable belly belts for pregnant women.
format Article
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spelling doaj-art-2c409cfe9cbc41ca928cfddd45672ae02025-08-20T02:48:33ZengNature PortfolioScientific Reports2045-23222025-02-0115111010.1038/s41598-024-83330-6Semi-auxetic piezoresistive textronicMilad Razbin0Sharhbanou Ehsanpour1Ali Akbar Gharehaghaji2Roohollah Bagherzadeh3Department of Textile Engineering, Amirkabir University of TechnologyDepartment of Textile Engineering, Amirkabir University of TechnologyDepartment of Textile Engineering, Amirkabir University of TechnologyAdvanced Firbous Materials Laboratory (AFM-LAB), Institute for Advanced Textile Materials and Technology, Amirkabir University of Technology (Tehran Polytechnic)Abstract Auxetic textile sensors represent a new generation of wearable sensors, offering advantages such as high sensitivity, enhanced mechanical properties, and greater comfort due to their suitable physical features. Research in this field remains limited and is still in its nascent stages. In this work, a piezoresistive sensor with a negative Poisson’s ratio was developed using the design concept of semi-auxetic yarn, where a stretchable band replaced the core to serve as a substrate for the piezoresistive sensors. A semi-auxetic piezoresistive textronic structure was created by stitching the sensors onto the substrate in a zig-zag pattern. Electromechanical analysis highlighted a trade-off between auxetic behaviour and sensitivity, with the highest sensitivity (−4.8) observed in a structure with a stitching length of 2 cm, and the highest auxeticity (−14.1) found in a structure with a stitching length of 3 cm. This type of piezoresistive textronic is suitable for applications such as yoga straps, driving safety belts, compression bandages, and breathable belly belts for pregnant women.https://doi.org/10.1038/s41598-024-83330-6Electromechanical sensorAuxeticTextilePiezoresistiveStretchable and flexible
spellingShingle Milad Razbin
Sharhbanou Ehsanpour
Ali Akbar Gharehaghaji
Roohollah Bagherzadeh
Semi-auxetic piezoresistive textronic
Scientific Reports
Electromechanical sensor
Auxetic
Textile
Piezoresistive
Stretchable and flexible
title Semi-auxetic piezoresistive textronic
title_full Semi-auxetic piezoresistive textronic
title_fullStr Semi-auxetic piezoresistive textronic
title_full_unstemmed Semi-auxetic piezoresistive textronic
title_short Semi-auxetic piezoresistive textronic
title_sort semi auxetic piezoresistive textronic
topic Electromechanical sensor
Auxetic
Textile
Piezoresistive
Stretchable and flexible
url https://doi.org/10.1038/s41598-024-83330-6
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AT sharhbanouehsanpour semiauxeticpiezoresistivetextronic
AT aliakbargharehaghaji semiauxeticpiezoresistivetextronic
AT roohollahbagherzadeh semiauxeticpiezoresistivetextronic