Seminar & Colloquium
[세미나: 9월 8일(금), 오후 1시] Prof. Jaehong Lee, Daegu Gyeongbuk Institute of Science and Technology (DGIST)
Title
Fiber-based soft electronic sensing system for 1D bioelectronics
Speaker
Prof. Jaehong Lee, Daegu Gyeongbuk Institute of Science and Technology (DGIST)
Education
- 2012. 3. ~ 2017. 2. Ph.D., Joint M.S. & Ph.D, School of Electrical and Electronic Engineering, Yonsei University, South Korea
- 2006. 3. ~ 2011. 8. B.S., Magna cum laude, The early graduation of excellent student, School of Electrical and Electronic Engineering, Yonsei University, South Korea
Experience
- 2020. 4. ~ present Assistant Professor, Department of Robotics and Mechatronics Engineering, DGIST, South Korea
- 2018. 4. ~ 2020. 3. ETH Postdoctoral fellow, Department of Information Technology and Electrical Engineering, ETH Zurich, Switzerland
- 2017. 3. ~ 2018. 2. School of Electrical and Electronic Engineering, Yonsei University, South Korea
| Date | Friday, September 8th, 2023
| Time | 13:00 ~
| Venue | 33동 125호(WCU다목적실)
[Abstract]
Healthcare is important for modern societies because of the rapid increase in aging population
and the strong desire to improve our quality of life. Especially, real-time measurements and preventative
managements of information in the body become more urgent, resulting in the emergence of electronic
sensors that can be integrated in the body. Most of previous implantable sensing devices have mainly
been developed in a planar structure which is not suitable to be applied to complex structure of tissues
and/or organs in the body. In addition, it is challenging to stably fix the planar soft sensing devices onto
moving or pulsatile organs. Typically, the implanted devices are sutured onto a target tissue and/or
organ for the fixation, but suturing of a soft implantable device is not efficient in clinical situations and
could potentially damage the implanted sensor. To overcome such practical limitations of previous twodimensional implantable devices in in-vivo applications, one-dimensional sensing devices can be a
promising solution that meet all the requirements needed for clinical practice.
In this talk, an electronic suture for wireless in-vivo strain sensing, which can overcome the
existing limitations of previous 2D electronic devices, is presented. To develop 1D electronic sensors,
a fully biocompatible fiber electrode is fabricated via an in-situ formation process of Au nanoparticles in
a fiber matrix. Based on the conductive fiber electrodes, a suturable strain sensing system which can
be used for in-vivo applications is developed. The strain sensing system exhibits outstanding sensitivity,
stability, wireless readout, solderless property, and suturability, which overcomes several practical
issues of current 2D implantable devices which have been barely considered so far. Various functional
sutures including sensing, drug-eluting, and biodegradable capabilities can also be developed based
on the conductive fiber-based electronic devices. The sensing and functional sutures are expected to
connect the existing implantable electronics with clinical and practical use.
| Host | 강승균 교수(02-880-5756)