Ultralight Weight Piezoresistive Spongy Graphene Sensors for Human Gait Monitoring Applications

Sengupta, D. & Kottapalli, A. G. P., 2020, Proceedings of the 15th Annual IEEE InternationalConference on Nano/Micro Engineered and Molecular Systems. IEEE, p. 120-123 4 p.

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This work reports a facile method of fabricating
ultralight weight (density of 0.305 g/cm3) and squeezable
microporous graphene-PDMS piezoresistive sensors for human
gait monitoring applications. The sensor reported in this work
demonstrates piezoresistivity by utilizing the conductive domain
discontinuity mechanism demonstrated by multilayer graphene
nanoflakes populating the inner pore walls of microporous
PDMS sponges. Quasi-static compressive strain characterization
experiments conducted on the sensor revealed a linear response
with a gauge factor of 8.77 for compressive strains up to 9.5%.
Two identical graphene-PDMS sponge sensors embedded into a
pair of soft shoe-soles were used to demonstrate comprehensive
real-time gait monitoring, which includes pressure profiling of
the heels of both the legs.
Original languageEnglish
Title of host publicationProceedings of the 15th Annual IEEE InternationalConference on Nano/Micro Engineered and Molecular Systems
Number of pages4
ISBN (Print)978-1-7281-7230-9
Publication statusPublished - 2020
EventVirtual IEEE NEMS 2020 - Online, San Diego, United States
Duration: 27-Sep-202030-Sep-2020
Conference number: 15


ConferenceVirtual IEEE NEMS 2020
CountryUnited States
CitySan Diego


Virtual IEEE NEMS 2020


San Diego, United States

Event: Conference

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