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Grant support

A.V. is in receipt of an FPU grant from the Spanish Government (FPU18/03235), funded by MCIN/AEI/10.13039/501100011033 "ESF Investing in your future". A.V., Y.K.R., and J.M. acknowledge the funding under project REGRAP-2D (PID2020-114234RBC22), which was funded by MCIN/AEI/10.13039/501100011033. Funding was also obtained from the Comunidad de Madrid through project NMAT2D-CM (P2018/NMT-4511) and MINCIN y Comunidad de Madrid, "Materiales Disruptivos Bidimensionales (2D)'' (MAD2D-CM)-UPM1. Additional support from the Spanish "Agencia Estatal de Investigacion '' under the call "Proyectos de Generacion de Conocimiento 2022 '' (3DPOSTHERMEC, PID2022-137274NB-C33PID) is also acknowledged. The authors also would like to acknowledge ICTS Micronanofabs.

Analysis of institutional authors

Martinez Barja, AidaAuthorRyu, Yu KyoungAuthorTarancon, SandraAuthorTejado, ElenaAuthorHamada, AssiaAuthorVelasco, AndresAuthorMartinez, JavierCorresponding Author

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Article

Laser-Induced Graphene Strain Sensors for Body Movement Monitoring

Publicated to:Acs Omega. 9 (37): 38359-38370 - 2024-08-30 9(37), DOI: 10.1021/acsomega.3c09067

Authors: Barja, AM; Ryu, YK; Tarancón, S; Tejado, E; Hamada, A; Velasco, A; Martinez, J

Affiliations

Univ Politecn Madrid, Dept Fis Aplicada & Ingn Mat, ETSI Ind, Madrid 28006, Spain - Author
Univ Politecn Madrid, Dept Ingn Elect, ETSI Telecomunicac, ES-28040 Madrid, Spain - Author
Univ Politecn Madrid, ETSI Caminos Canales & Puertos, Dept Ciencia Mat, CIME, E-28040 Madrid, Spain - Author
Univ Politecn Madrid, Inst Sistemas Optoelect & Microtecnol, ES-28040 Madrid, Spain - Author

Abstract

To enable the development of artificial intelligence of things, the improvement of the strain sensing mechanisms and optimization of the interconnections are needed. Direct laser writing to obtain laser-induced graphene (LIG) is being studied as a promising technique for producing wearable, lightweight, highly sensitive, and reliable strain sensors. These devices show a higher degree of flexibility and stretchability when transferred to an elastomeric substrate. In this article, we manufactured polydimethylsiloxane (PDMS)-encapsulated LIG piezoresistive strain sensors with a quasi-linear behavior and a gauge factor of 111. The produced LIG was morphologically characterized via Raman spectroscopy and scanning electron microscopy before and after the electromechanical characterization and before and after the LIG transfer to PDMS. The results from these analyses revealed that the integrity of the material after the test was not affected and that the LIG volume in contact with the substrate increased after transfer and encapsulation in PDMS, leading to the improvement of the sensor performance. The sensors' capability for measuring bend angles accurately was demonstrated experimentally, making them useable in a wide range of applications for human body movement monitoring as well as for structural health monitoring. Regarding body monitoring, a PDMS-encapsulated LIG sensor for knee bending angle detection was proposed. This device showed unaffected performance of 1500 cycles under 8% uniaxial deformation and with response times in the range of 1-2 s

Keywords

GaugeRaman-spectroscopyTemperatureTransition

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal Acs Omega due to its progression and the good impact it has achieved in recent years, according to the agency WoS (JCR), it has become a reference in its field. In the year of publication of the work, 2024 there are still no calculated indicators, but in 2023, it was in position 86/231, thus managing to position itself as a Q2 (Segundo Cuartil), in the category Chemistry, Multidisciplinary. Notably, the journal is positioned en el Cuartil Q2 para la agencia Scopus (SJR) en la categoría Chemical Engineering (Miscellaneous).

Independientemente del impacto esperado determinado por el canal de difusión, es importante destacar el impacto real observado de la propia aportación.

Según las diferentes agencias de indexación, el número de citas acumuladas por esta publicación hasta la fecha 2025-06-20:

  • Google Scholar: 1
  • WoS: 1
  • Scopus: 5

Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2025-06-20:

  • The use, from an academic perspective evidenced by the Altmetric agency indicator referring to aggregations made by the personal bibliographic manager Mendeley, gives us a total of: 14.
  • The use of this contribution in bookmarks, code forks, additions to favorite lists for recurrent reading, as well as general views, indicates that someone is using the publication as a basis for their current work. This may be a notable indicator of future more formal and academic citations. This claim is supported by the result of the "Capture" indicator, which yields a total of: 13 (PlumX).

With a more dissemination-oriented intent and targeting more general audiences, we can observe other more global scores such as:

  • The Total Score from Altmetric: 1.85.
  • The number of mentions on the social network X (formerly Twitter): 2 (Altmetric).

It is essential to present evidence supporting full alignment with institutional principles and guidelines on Open Science and the Conservation and Dissemination of Intellectual Heritage. A clear example of this is:

  • The work has been submitted to a journal whose editorial policy allows open Open Access publication.

Leadership analysis of institutional authors

There is a significant leadership presence as some of the institution’s authors appear as the first or last signer, detailed as follows: First Author (Barja, Aida M) and Last Author (MARTINEZ RODRIGO, JAVIER).

the author responsible for correspondence tasks has been MARTINEZ RODRIGO, JAVIER.