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

dc.contributor.authorYao, Darren Zi Hian
dc.contributor.authorCai, Catherine Jiayi
dc.contributor.authorChen, Po-Yen
dc.contributor.authorRen, Hongliang
dc.date.accessioned2023-10-17T14:49:24Z
dc.date.available2023-10-17T14:49:24Z
dc.date.issued2022-12-06
dc.description.abstractSoft 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.
dc.description.urihttps://doi.org/10.3390/robotics11060146
dc.identifierhttps://doi.org/10.13016/dspace/4wow-cc6g
dc.identifier.citationYeo, D.Z.H.; Cai, C.J.; Chen, P.-Y.; Ren, H. Stretchable and Compliant Sensing of Strain, Pressure and Vibration of Soft Deformable Structures. Robotics 2022, 11, 146.
dc.identifier.urihttp://hdl.handle.net/1903/31034
dc.language.isoen_US
dc.publisherMDPI
dc.relation.isAvailableAtDigital Repository at the University of Marylanden_us
dc.relation.isAvailableAtUniversity of Maryland (College Park, MD)en_us
dc.relation.isAvailableAtA. James Clark School of Engineeringen_us
dc.relation.isAvailableAtChemical & Biomolecular Engineeringen_us
dc.subjectMXene
dc.subjectvibration frequency response
dc.subjectstrain sensing
dc.subjectpressure sensing
dc.titleStretchable and Compliant Sensing of Strain, Pressure and Vibration of Soft Deformable Structures
dc.typeArticle
local.equitableAccessSubmissionNo

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