{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,29]],"date-time":"2026-10-29T13:06:15Z","timestamp":1793279175770,"version":"4.5.0"},"reference-count":27,"publisher":"IOP Publishing","issue":"1","license":[{"start":{"date-parts":[[2020,2,25]],"date-time":"2020-02-25T00:00:00Z","timestamp":1582588800000},"content-version":"vor","delay-in-days":24,"URL":"http:\/\/creativecommons.org\/licenses\/by\/3.0\/"},{"start":{"date-parts":[[2020,2,25]],"date-time":"2020-02-25T00:00:00Z","timestamp":1582588800000},"content-version":"tdm","delay-in-days":24,"URL":"https:\/\/iopscience.iop.org\/info\/page\/text-and-data-mining"}],"funder":[{"name":"NSF","award":["CAREER Award under Grant ECCS-1454107"],"award-info":[{"award-number":["CAREER Award under Grant ECCS-1454107"]}]},{"DOI":"10.13039\/100000185","name":"Defense Advanced Research Projects Agency","doi-asserted-by":"crossref","award":["ElectRx program"],"award-info":[{"award-number":["ElectRx program"]}],"id":[{"id":"10.13039\/100000185","id-type":"DOI","asserted-by":"crossref"}]}],"content-domain":{"domain":["iopscience.iop.org"],"crossmark-restriction":false},"short-container-title":["J. Neural Eng."],"published-print":{"date-parts":[[2020,2,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:p>\n                  <jats:italic>Objective<\/jats:italic>. Therapeutic applications of implantable active medical devices have improved the quality of patient life. Numerous on-going research in the field of neuromodulation and bioelectronic medicine are exploring the use of these implants for treating diseases and conditions. Miniaturized implantable medical devices that are wirelessly powered by ultrasound (US) can be placed close to the target sites deep inside the body for effective therapy with less invasiveness. In this study, we assessed the long-term <jats:italic>in vivo<\/jats:italic> performance of miniaturized US powered implants (UPI) using a rodent model. <jats:italic>Approach<\/jats:italic>. Prototype UPI devices were implanted in rodents and powered wirelessly using an unfocused US transmitter over 12 weeks, and the corresponding device output was recorded. Structural integrity of UPI before and after implantation was studied using scanning electron microscopy (SEM). We also conducted qualitative histological assessment of skin and muscle surrounding the UPI and compared it to na\u00efve control and US exposed tissues. <jats:italic>Main results<\/jats:italic>. We found that it is feasible to power UPI devices wirelessly with US over long-term. The encapsulation of UPIs did not degrade over time and the tissues surrounding the UPI were comparable to both na\u00efve control and US exposed tissues. <jats:italic>Significance<\/jats:italic>. This study is the first to assess the long-term performance of miniaturized UPI devices using a rodent model over 12-weeks. The set of tests used in this study can be extended to assess other US-powered miniaturized implants.<\/jats:p>","DOI":"10.1088\/1741-2552\/ab6fc2","type":"journal-article","created":{"date-parts":[[2020,1,24]],"date-time":"2020-01-24T22:45:49Z","timestamp":1579905949000},"page":"016072","update-policy":"https:\/\/doi.org\/10.1088\/crossmark-policy","source":"Crossref","is-referenced-by-count":16,"title":["Assessment of miniaturized ultrasound-powered implants: an in vivo study"],"prefix":"10.1088","volume":"17","author":[{"given":"Jesse","family":"Vo","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ting Chia","family":"Chang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Katherine I","family":"Shea","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Matthew","family":"Myers","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Amin","family":"Arbabian","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6314-5328","authenticated-orcid":false,"given":"Srikanth","family":"Vasudevan","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"266","published-online":{"date-parts":[[2020,2,25]]},"reference":[{"key":"jneab6fc2bib001","doi-asserted-by":"publisher","first-page":"1427","DOI":"10.1016\/j.mayocp.2017.05.005","article-title":"Neurostimulation devices for the treatment of neurologic disorders","volume":"92","author":"Edwards","year":"2017","journal-title":"Mayo Clin. 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