Beyond Human Touch Perception: An Adaptive Robotic Skin Based on Gallium Microgranules for Pressure Sensory Augmentation

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dc.contributor.authorLee, Simokko
dc.contributor.authorByun, Sang-Hyukko
dc.contributor.authorKim, Choong Yeonko
dc.contributor.authorCho, Sungwooko
dc.contributor.authorPark, Steveko
dc.contributor.authorSim, Joo Yongko
dc.contributor.authorJeong, Jae-Woongko
dc.date.accessioned2022-11-10T03:00:47Z-
dc.date.available2022-11-10T03:00:47Z-
dc.date.created2022-11-01-
dc.date.created2022-11-01-
dc.date.created2022-11-01-
dc.date.created2022-11-01-
dc.date.created2022-11-01-
dc.date.issued2022-11-
dc.identifier.citationADVANCED MATERIALS, v.34, no.44-
dc.identifier.issn0935-9648-
dc.identifier.urihttp://hdl.handle.net/10203/299457-
dc.description.abstractRobotic skin with human-skin-like sensing ability holds immense potential in various fields such as robotics, prosthetics, healthcare, and industries. To catch up with human skin, numerous studies are underway on pressure sensors integrated on robotic skin to improve the sensitivity and detection range. However, due to the trade-off between them, existing pressure sensors have achieved only a single aspect, either high sensitivity or wide bandwidth. Here, an adaptive robotic skin is proposed that has both high sensitivity and broad bandwidth with an augmented pressure sensing ability beyond the human skin. A key for the adaptive robotic skin is a tunable pressure sensor built with uniform gallium microgranules embedded in an elastomer, which provides large tuning of the sensitivity and the bandwidth, excellent sensor-to-sensor uniformity, and high reliability. Through the mode conversion based on the solid-liquid phase transition of gallium microgranules, the sensor provides 97% higher sensitivity (16.97 kPa(-1)) in the soft mode and 262.5% wider bandwidth (approximate to 1.45 MPa) in the rigid mode compared to the human skin. Successful demonstration of the adaptive robotic skin verifies its capabilities in sensing a wide spectrum of pressures ranging from subtle blood pulsation to body weight, suggesting broad use for various applications.-
dc.languageEnglish-
dc.publisherWILEY-V C H VERLAG GMBH-
dc.titleBeyond Human Touch Perception: An Adaptive Robotic Skin Based on Gallium Microgranules for Pressure Sensory Augmentation-
dc.typeArticle-
dc.identifier.wosid000863038700001-
dc.identifier.scopusid2-s2.0-85139214203-
dc.type.rimsART-
dc.citation.volume34-
dc.citation.issue44-
dc.citation.publicationnameADVANCED MATERIALS-
dc.identifier.doi10.1002/adma.202204805-
dc.contributor.localauthorPark, Steve-
dc.contributor.localauthorJeong, Jae-Woong-
dc.contributor.nonIdAuthorCho, Sungwoo-
dc.contributor.nonIdAuthorSim, Joo Yong-
dc.description.isOpenAccessN-
dc.type.journalArticleArticle-
dc.subject.keywordAuthorgallium-
dc.subject.keywordAuthorrobotic skins-
dc.subject.keywordAuthorsensory augmentation-
dc.subject.keywordAuthorstiffness tuning-
dc.subject.keywordAuthortunable pressure sensors-
dc.subject.keywordPlusHIGH-SENSITIVITY-
dc.subject.keywordPlusGRAPHENE OXIDE-
dc.subject.keywordPlusNANOFIBERS-
dc.subject.keywordPlusCOMPOSITE-
dc.subject.keywordPlusDESIGN-
dc.subject.keywordPlusARRAY-
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