Kirigami Strain Sensing on Balloon Catheters with Temporary Tattoo Paper

Jia, Li; Yeow, Bok Seng; Ponraj, Godwin; Kumar, Kirthika Senthil; Cai, Catherine Jiayi; Ren, Hongliang

doi:10.1109/bsn51625.2021.9507031

Cited by 2 publications

(2 citation statements)

References 7 publications

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“…In biomedical applications, it is desirable for soft robotic and medical devices to possess self-sensing capabilities for control and task safety [1,2]. These devices will greatly benefit from sensors that can estimate the device's shape as they undergo deformation and the contact locations and forces that the devices experience as they interact with the surrounding tissue [3,4].…”

Section: Introductionmentioning

confidence: 99%

“…However, to our knowledge, the advantages and applications of wrinkles created from 3D buckling have yet to be explored in pressure sensing. Stretchable and sensitive pressure sensors are often desirable in soft medical devices to detect contact forces for control and to reduce potential damage to the surrounding tissue [1,3]. To address this gap in the literature, we aim to fabricate and characterize the performance of stretchable wrinkled pressure sensors fabricated from 3D buckling.…”

Section: Introductionmentioning

confidence: 99%

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Stretchable and Compliant Sensing of Strain, Pressure and Vibration of Soft Deformable Structures

et al. 2022

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Soft robotic and medical devices will greatly benefit from stretchable and compliant pressure sensors that can detect deformation and contact forces for control and task safety. In addition to traditional 2D buckling via planar substrates, 3D buckling via curved substrates has emerged as an alternative approach to generate tunable and highly convoluted hierarchical wrinkle morphologies. Such wrinkles may provide advantages in pressure sensing, such as increased sensitivity, ultra-stretchability, and detecting changing curvatures. In this work, we fabricated stretchable sensors using wrinkled MXene electrodes obtained from 3D buckling. We then characterized the sensors’ performance in detecting strain, pressure, and vibrations. The fabricated wrinkled MXene electrode exhibited high stretchability of up to 250% and has a strain sensitivity of 0.1 between 0 and 80%. The fabricated bilayer MXene pressure sensor exhibited a pressure sensitivity of 0.935 kPa−1 and 0.188 kPa−1 at the lower (<0.25 kPa) and higher-pressure regimes (0.25 kPa–2.0 kPa), respectively. The recovery and response timing of the wrinkled MXene pressure sensor was found to be 250 ms and 400 ms, respectively. The sensor was also capable of detecting changing curvatures upon mounting onto an inflating balloon.

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