TY - GEN
T1 - Ingestible Wireless Capsule Sensor Made from Edible Materials for Gut Bacteria Monitoring
AU - Inami, Ayaka
AU - Kan, Tetsuo
AU - Onoe, Hiroaki
N1 - Funding Information:
This work was partly supported by Translational Research program; Strategic PRomotion for practical application of INnovative medical Technology (TR-SPRINT) from Japan Agency for Medical Research and Development (AMED).
Publisher Copyright:
© 2022 IEEE.
PY - 2022
Y1 - 2022
N2 - This report describes an ingestible capsule sensor that can wirelessly detect the activity of gut bacteria by irradiating microwaves from outside the body. The proposed sensor is composed of only edible materials: the critical sensing material is a dietary fiber, guar gum, that is decomposed by gut bacteria. We confirmed that the guar gum film can be decomposed by gut bacteria, bifidobacteria. For wireless communication, we fabricated an ingestible antenna made from rice paper and gold with a split-ring resonator (SRR), one of the elements of electromagnetic metamaterials. Our sensor fulfills swallowable size and wireless communication requirements for the first time and would be a safety sensor for gastrointestinal (GI) tract monitoring. We believe that our ingestible sensor could be an effective tool for non-invasive biological substances monitoring without retention risk.
AB - This report describes an ingestible capsule sensor that can wirelessly detect the activity of gut bacteria by irradiating microwaves from outside the body. The proposed sensor is composed of only edible materials: the critical sensing material is a dietary fiber, guar gum, that is decomposed by gut bacteria. We confirmed that the guar gum film can be decomposed by gut bacteria, bifidobacteria. For wireless communication, we fabricated an ingestible antenna made from rice paper and gold with a split-ring resonator (SRR), one of the elements of electromagnetic metamaterials. Our sensor fulfills swallowable size and wireless communication requirements for the first time and would be a safety sensor for gastrointestinal (GI) tract monitoring. We believe that our ingestible sensor could be an effective tool for non-invasive biological substances monitoring without retention risk.
KW - Capsule sensor
KW - Edible electronics
KW - Electromagnetic metamaterial
KW - Ingestible sensor
KW - Sprit-ring resonator
KW - Wireless
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U2 - 10.1109/MEMS51670.2022.9699577
DO - 10.1109/MEMS51670.2022.9699577
M3 - Conference contribution
AN - SCOPUS:85126396509
T3 - Proceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS)
SP - 110
EP - 113
BT - 35th IEEE International Conference on Micro Electro Mechanical Systems Conference, MEMS 2022
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 35th IEEE International Conference on Micro Electro Mechanical Systems Conference, MEMS 2022
Y2 - 9 January 2022 through 13 January 2022
ER -