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dc.contributor.authorKottapalli, Ajay
dc.contributor.authorBora, Meghali
dc.contributor.authorKanhere, Elgar
dc.contributor.authorAsadnia, Mohsen
dc.contributor.authorMiao, Jianmin
dc.contributor.authorTriantafyllou, Michael S
dc.date.accessioned2018-04-20T23:10:34Z
dc.date.available2018-04-20T23:10:34Z
dc.date.issued2017-07
dc.date.submitted2017-07
dc.identifier.issn1424-8220
dc.identifier.urihttp://hdl.handle.net/1721.1/114848
dc.description.abstractBlind cavefishes are known to detect objects through hydrodynamic vision enabled by arrays of biological flow sensors called neuromasts. This work demonstrates the development of a MEMS artificial neuromast sensor that features a 3D polymer hair cell that extends into the ambient flow. The hair cell is monolithically fabricated at the center of a 2 µm thick silicon membrane that is photo-patterned with a full-bridge bias circuit. Ambient flow variations exert a drag force on the hair cell, which causes a displacement of the sensing membrane. This in turn leads to the resistance imbalance in the bridge circuit generating a voltage output. Inspired by the biological neuromast, a biomimetic synthetic hydrogel cupula is incorporated on the hair cell. The morphology, swelling behavior, porosity and mechanical properties of the hyaluronic acid hydrogel are characterized through rheology and nanoindentation techniques. The sensitivity enhancement in the sensor output due to the material and mechanical contributions of the micro-porous hydrogel cupula is investigated through experiments.en_US
dc.description.sponsorshipSingapore. National Research Foundation (Campus for Research Excellence and Technological Enterprise programme)en_US
dc.publisherMDPI AGen_US
dc.relation.isversionofhttp://dx.doi.org/10.3390/S17081728en_US
dc.rightsAttribution 4.0 International (CC BY 4.0)en_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en_US
dc.sourceDiversityen_US
dc.titleCupula-Inspired Hyaluronic Acid-Based Hydrogel Encapsulation to Form Biomimetic MEMS Flow Sensorsen_US
dc.typeArticleen_US
dc.identifier.citationKottapalli, Ajay, Meghali Bora, Elgar Kanhere, Mohsen Asadnia, Jianmin Miao, and Michael Triantafyllou. “Cupula-Inspired Hyaluronic Acid-Based Hydrogel Encapsulation to Form Biomimetic MEMS Flow Sensors.” Sensors, vol. 17, no. 8, July 2017, p. 1728. © 2017 by the authors.en_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Mechanical Engineeringen_US
dc.contributor.mitauthorTriantafyllou, Michael S
dc.relation.journalSensorsen_US
dc.eprint.versionFinal published versionen_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dc.date.updated2018-03-02T16:13:33Z
dspace.orderedauthorsKottapalli, Ajay; Bora, Meghali; Kanhere, Elgar; Asadnia, Mohsen; Miao, Jianmin; Triantafyllou, Michaelen_US
dspace.embargo.termsNen_US
dc.identifier.orcidhttps://orcid.org/0000-0002-4960-7060
mit.licensePUBLISHER_CCen_US


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