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medical engineering

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인공 시냅스 https://medicalxpress.com/news/2020-06-artificial-synapse-cells.html In 2017, Stanford University researchers presented a new device that mimics the brain's efficient and low-energy neural learning process. It was an artificial version of a synapse—the gap across which neurotransmitters travel to communicate between neurons—made from organic materials. Now, in a paper published June 15 in Nature..
non-invasive glucose monitoring 일단 이 논문에서 originality는 혈관 모양을 본따서 magnetic antenna를 만들었다는 점이다. 혈관 모양을 본따서 만든 것의 이점은 sensor 감도가 더 올라갔다. 논문에서도 "Matching the antenna to the human body is of utmost importance to our application."라고 하였다. Band-reject filter는 Sender, Slot antenna는 receiver의 역할을 하는 것 같다. 자기장을 감지하는 것인데, antenna의 curvature에도 영향을 받는 듯하다. 그래서 curvature에 따른 변화도를 보여주는 그래프를 넣었다. 실제로 사람에게 적용해서 한 실험이다. 사람의 움직임이나, 습도, surface t..
magnetic powered neural simulator https://medicalxpress.com/news/2020-06-rice-team-tiny-magnetically-powered.html Rice University neuroengineers have created a tiny surgical implant that can electrically stimulate the brain and nervous system without using a battery or wired power supply. The neural stimulator draws its power from magnetic energy and is about the size of a grain of rice. It is the first magnetically powered neur..
non-invasive reconstruction of ear inside the body using 3D printing https://phys.org/news/2020-06-near-infrared-d-ear-body.html In recent years, it has come to be used in medical applications to repair defective tissue. In such applications, ultra violoet light is used to 3-D print tissue-like material through polymerization, in which materials become denser and stick together when exposed to the light. In such efforts, surgery is required to expose the tissue t..