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SUMMARY:Neuro-X seminar: Cortex-Wide Opto-Electrophysiological Recordings 
 Using Transparent Inkjet-printed Electrode Arrays
DTSTART:20230508T103000
DTEND:20230508T113000
DTSTAMP:20260427T225301Z
UID:4429cd7d3e1b229c5a7365c73e70ffb56e21543330b43aeb007ac84d
CATEGORIES:Conferences - Seminars
DESCRIPTION:Prof Sarah Swisher\nAbstract\nIn parallel with the continued i
 mprovement of traditional silicon semiconductor devices\, another paradigm
  of electronics has taken shape: flexible electronic systems. Flexible dis
 plays\, electronic textiles\, bio-inspired sensors\, and wearable or impla
 ntable medical devices are just a few applications that benefit from large
 -area form factors and mechanical flexibility\, both of which are challeng
 ing to achieve with conventional wafer-based electronics. Flexible and pri
 nted electronics are ideally suited for sensing applications that require 
 conformable and easily-customizable circuits.\nElectrophysiology and optic
 al imaging provide complementary neural sensing capabilities – electroph
 ysiological recordings have high temporal resolution\, while optical imagi
 ng allows recording of genetically-defined populations at high spatial res
 olution. In this talk\, I will focus on our recent work developing “eSee
 -Shells”: chronic multimodal neural interface devices using transparent\
 , inkjet-printed electrocorticography (ECoG) arrays. eSee-Shells combine e
 lectrophysiology and optical calcium (Ca2+) imaging for simultaneous large
 -area\, multimodal sensing of neural activity across multiple brain region
 s. eSee-Shells were implanted on transgenic mice\, providing a robust opto
 -electrophysiological interface for over 100 days. They enable simultaneou
 s mesoscale Ca2+ imaging and ECoG acquisition from multiple brain regions 
 covering 45 mm2 of cortex in anesthetized and awake animals. The accessibl
 e cortical surface area in this study is an order of magnitude larger than
  typical chronic transparent ECoG arrays\, where the field of view is ofte
 n limited to ~2-5 mm2. Finally\, I will highlight other applications from 
 our recent work that leverage flexible bioelectronic sensing arrays\, as w
 ell as our progress combining solution-processed oxide semiconductors with
  novel photonic processing techniques to produce flexible transistors.\n\n
 \nBio\nSarah L. Swisher is currently an Assistant Professor in the Departm
 ent of Electrical & Computer Engineering at the University of Minnesota. S
 he received her B.S. in Electrical Engineering from the University of Nebr
 aska-Lincoln\, and her M.S. and Ph.D. degrees in Electrical Engineering an
 d Computer Sciences from the University of California\, Berkeley. Her curr
 ent research sits at the intersection of semiconductor device physics\, ma
 terials science\, and bioengineering. She leverages the beneficial propert
 ies of flexible electronics to enable new technologies and advancements in
  biological sensors and medical devices. Her research approach is collabor
 ative and multidisciplinary\, with ties to the Center for Neuroengineering
  (CNE)\, the Institute for Engineering in Medicine (IEM)\, and the Transla
 tional Center for Resuscitative Trauma Care (TCRTC).\n 
LOCATION:H4-2-A https://plan.epfl.ch//?room==H4%202%20232.080 https://epfl
 .zoom.us/j/63082800114?pwd=VnViWU85bVdtSmxNeUF0NktwR3J2Zz09
STATUS:CONFIRMED
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