{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,6]],"date-time":"2026-03-06T22:23:04Z","timestamp":1772835784010,"version":"3.50.1"},"reference-count":27,"publisher":"MDPI AG","issue":"4","license":[{"start":{"date-parts":[[2018,3,26]],"date-time":"2018-03-26T00:00:00Z","timestamp":1522022400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>In this paper, we report the development, evaluation, and application of ultra-small low-power wireless sensor nodes for advancing animal husbandry, as well as for innovation of medical technologies. A radio frequency identification (RFID) chip with hybrid interface and neglectable power consumption was introduced to enable switching of ON\/OFF and measurement mode after implantation. A wireless power transmission system with a maximum efficiency of 70% and an access distance of up to 5 cm was developed to allow the sensor node to survive for a duration of several weeks from a few minutes\u2019 remote charge. The results of field tests using laboratory mice and a cow indicated the high accuracy of the collected biological data and bio-compatibility of the package. As a result of extensive application of the above technologies, a fully solid wireless pH sensor and a surgical navigation system using artificial magnetic field and a 3D MEMS magnetic sensor are introduced in this paper, and the preliminary experimental results are presented and discussed.<\/jats:p>","DOI":"10.3390\/s18040979","type":"journal-article","created":{"date-parts":[[2018,3,26]],"date-time":"2018-03-26T12:08:25Z","timestamp":1522066105000},"page":"979","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":12,"title":["Development of Implantable Wireless Sensor Nodes for Animal Husbandry and MedTech Innovation"],"prefix":"10.3390","volume":"18","author":[{"given":"Jian","family":"Lu","sequence":"first","affiliation":[{"name":"Research Center for Ubiquitous MEMS and Micro Engineering (UMEMSME), National Institute of Advanced Industrial Science and Technology (AIST), Namiki 1-2-1, Tsukuba 305-8564, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Lan","family":"Zhang","sequence":"additional","affiliation":[{"name":"Research Center for Ubiquitous MEMS and Micro Engineering (UMEMSME), National Institute of Advanced Industrial Science and Technology (AIST), Namiki 1-2-1, Tsukuba 305-8564, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Dapeng","family":"Zhang","sequence":"additional","affiliation":[{"name":"Research Center for Ubiquitous MEMS and Micro Engineering (UMEMSME), National Institute of Advanced Industrial Science and Technology (AIST), Namiki 1-2-1, Tsukuba 305-8564, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sohei","family":"Matsumoto","sequence":"additional","affiliation":[{"name":"Research Center for Ubiquitous MEMS and Micro Engineering (UMEMSME), National Institute of Advanced Industrial Science and Technology (AIST), Namiki 1-2-1, Tsukuba 305-8564, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hiroshi","family":"Hiroshima","sequence":"additional","affiliation":[{"name":"Research Center for Ubiquitous MEMS and Micro Engineering (UMEMSME), National Institute of Advanced Industrial Science and Technology (AIST), Namiki 1-2-1, Tsukuba 305-8564, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ryutaro","family":"Maeda","sequence":"additional","affiliation":[{"name":"Research Center for Ubiquitous MEMS and Micro Engineering (UMEMSME), National Institute of Advanced Industrial Science and Technology (AIST), Namiki 1-2-1, Tsukuba 305-8564, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mizuho","family":"Sato","sequence":"additional","affiliation":[{"name":"College of Agriculture Ibaraki University, Chuo Ami Inashiki 3-21-1, Mito 300-0393, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Atsushi","family":"Toyoda","sequence":"additional","affiliation":[{"name":"College of Agriculture Ibaraki University, Chuo Ami Inashiki 3-21-1, Mito 300-0393, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Takafumi","family":"Gotoh","sequence":"additional","affiliation":[{"name":"Kuju Agricultural Research Center, Graduate School of Agriculture, Kyushu University, Fukuoka 878-0201, Japan"},{"name":"Department of Agricultural Sciences and Natural Resources, Kagoshima University, Korimoto 1-21-24, Kagoshima 890-0065, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Nobuhiro","family":"Ohkohchi","sequence":"additional","affiliation":[{"name":"Faculty of Medicine, University of Tsukuba, Tennoudai 1-1-1, Tsukuba 305-8577, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2018,3,26]]},"reference":[{"key":"ref_1","unstructured":"Fryer, T.B. 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