Printable carbon nanotube-liquid elastomer-based multifunctional adhesive sensors for monitoring physiological parameters
Printable carbon nanotube-liquid elastomer-based multifunctional adhesive sensors for monitoring physiological parameters
Developing a printed elastomeric wearable sensor with good conformity and proper adhesion to skin, coupled with the capability of monitoring various physiological parameters, is very crucial for the development of point-of-care sensing devices with high precision and sensitivity. While there have been previous reports on the fabrication of elastomeric multifunctional sensors, research on the printable elastomeric multifunctional adhesive sensor is not very well explored. Herein, we report the development of a stencil printable multifunctional adhesive sensor fabricated in a solvent-free condition, which demonstrated the capability of having good contact with skin and its ability to function as a temperature and strain sensor. Functionalized liquid isoprene rubber was selected as the matrix while carboxylated multiwalled carbon nanotubes (c-CNTs) were used as the nanofiller. The selection of the above model compounds facilitated the printability and also helped the same composition to demonstrate stretchability and adhesiveness. A realistic three-dimensional microstructure (representative volume element model) was generated through a computational framework for the current c-CNT-liquid elastomer. Further computational simulations were performed to test and validate the correlation between electrical responses to that of experimental studies. Various physiological parameters like motion sensing, pulse, respiratory rate, and phonetics detection were detected by leveraging the electrically resistive nature of the sensor. This development route can be extended toward developing different innovative adhesives for point-of-care sensing applications.
adhesive, carbon nanotubes, finite element analysis, multifunctional sensor, representative volume element, stencil printing, wearable electronics
45921 - 45933
Selvan, Muthamil T.
da68d407-8d0a-476c-bb91-6fb4884b5997
Sharma, Simran
9214a1a7-22c8-4208-8e56-955daf0facec
Naskar, Susmita
5f787953-b062-4774-a28b-473bd19254b1
Mondal, Soumyadeep
b643e343-6976-4153-9763-f13b529ba995
Kaushal, Manish
42623543-e4d7-4e3d-8ecb-56e5a13ab9f3
Mondal, Titash
39e1681f-837c-48ac-b529-0eebf63697cb
12 October 2022
Selvan, Muthamil T.
da68d407-8d0a-476c-bb91-6fb4884b5997
Sharma, Simran
9214a1a7-22c8-4208-8e56-955daf0facec
Naskar, Susmita
5f787953-b062-4774-a28b-473bd19254b1
Mondal, Soumyadeep
b643e343-6976-4153-9763-f13b529ba995
Kaushal, Manish
42623543-e4d7-4e3d-8ecb-56e5a13ab9f3
Mondal, Titash
39e1681f-837c-48ac-b529-0eebf63697cb
Selvan, Muthamil T., Sharma, Simran, Naskar, Susmita, Mondal, Soumyadeep, Kaushal, Manish and Mondal, Titash
(2022)
Printable carbon nanotube-liquid elastomer-based multifunctional adhesive sensors for monitoring physiological parameters.
ACS Applied Materials and Interfaces, 14 (40), .
(doi:10.1021/acsami.2c13927).
Abstract
Developing a printed elastomeric wearable sensor with good conformity and proper adhesion to skin, coupled with the capability of monitoring various physiological parameters, is very crucial for the development of point-of-care sensing devices with high precision and sensitivity. While there have been previous reports on the fabrication of elastomeric multifunctional sensors, research on the printable elastomeric multifunctional adhesive sensor is not very well explored. Herein, we report the development of a stencil printable multifunctional adhesive sensor fabricated in a solvent-free condition, which demonstrated the capability of having good contact with skin and its ability to function as a temperature and strain sensor. Functionalized liquid isoprene rubber was selected as the matrix while carboxylated multiwalled carbon nanotubes (c-CNTs) were used as the nanofiller. The selection of the above model compounds facilitated the printability and also helped the same composition to demonstrate stretchability and adhesiveness. A realistic three-dimensional microstructure (representative volume element model) was generated through a computational framework for the current c-CNT-liquid elastomer. Further computational simulations were performed to test and validate the correlation between electrical responses to that of experimental studies. Various physiological parameters like motion sensing, pulse, respiratory rate, and phonetics detection were detected by leveraging the electrically resistive nature of the sensor. This development route can be extended toward developing different innovative adhesives for point-of-care sensing applications.
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Manuscript Muthamil 09142022 (1)
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Accepted/In Press date: 16 September 2022
e-pub ahead of print date: 28 September 2022
Published date: 12 October 2022
Additional Information:
Funding Information:
T.M. acknowledges the funding received from the IIT Kharagpur, India, under the ISIRD scheme for the ESA project. M.S.T. acknowledges the institute for funding his scholarship.
Publisher Copyright:
© 2022 American Chemical Society. All rights reserved.
Keywords:
adhesive, carbon nanotubes, finite element analysis, multifunctional sensor, representative volume element, stencil printing, wearable electronics
Identifiers
Local EPrints ID: 470677
URI: http://eprints.soton.ac.uk/id/eprint/470677
ISSN: 1944-8244
PURE UUID: 71558665-c3ea-4085-9c1e-8c1772406e90
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Date deposited: 17 Oct 2022 17:04
Last modified: 17 Mar 2024 07:31
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Contributors
Author:
Muthamil T. Selvan
Author:
Simran Sharma
Author:
Soumyadeep Mondal
Author:
Manish Kaushal
Author:
Titash Mondal
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