Prototyping a wearable and stretchable graphene-on-PDMS sensor for strain detection on human body physiological and joint movements

Shukla, Prashant; Saxena, Pooja; Madhwal, Devinder; Singh, Yugal; Bhardwaj, Nitin; Samal, Rajesh; Kumar, Vivek; Jain, V. K.

doi:10.1007/s00604-024-06368-3

Microchim Acta

2024

DOI: 10.1007/s00604-024-06368-3

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Prototyping a wearable and stretchable graphene-on-PDMS sensor for strain detection on human body physiological and joint movements

Prashant Shukla,

Pooja Saxena,

Devinder Madhwal

et al.

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Human Activity Recording Based on Skin-Strain-Actuated Microfluidic Pumping in Asymmetrically Designed Micro-Channels

Askar,

Cmager,

Altay

et al. 2024

Sensors

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The capability to record data in passive, image-based wearable sensors can simplify data readouts and eliminate the requirement for the integration of electronic components on the skin. Here, we developed a skin-strain-actuated microfluidic pump (SAMP) that utilizes asymmetric aspect ratio channels for the recording of human activity in the fluidic domain. An analytical model describing the SAMP’s operation mechanism as a wearable microfluidic device was established. Fabrication of the SAMP was achieved using soft lithography from polydimethylsiloxane (PDMS). Benchtop experimental results and theoretical predictions were shown to be in good agreement. The SAMP was mounted on human skin and experiments conducted on volunteer subjects demonstrated the SAMP’s capability to record human activity for hundreds of cycles in the fluidic domain through the observation of a stable liquid meniscus. Proof-of-concept experiments further revealed that the SAMP could quantify a single wrist activity repetition or distinguish between three different shoulder activities.

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Human Activity Recording Based on Skin-Strain-Actuated Microfluidic Pumping in Asymmetrically Designed Micro-Channels

Askar,

Cmager,

Altay

et al. 2024

Sensors

View full text Add to dashboard Cite

show abstract

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Prototyping a wearable and stretchable graphene-on-PDMS sensor for strain detection on human body physiological and joint movements

Cited by 1 publication

References 55 publications

Human Activity Recording Based on Skin-Strain-Actuated Microfluidic Pumping in Asymmetrically Designed Micro-Channels

Human Activity Recording Based on Skin-Strain-Actuated Microfluidic Pumping in Asymmetrically Designed Micro-Channels

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