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SUMMARY:Sensory Sciences Guest Lecture: Dr. Michael Christiansen\, Mag
 netic Induction for Tracking Microrobots and Biosensing
UID:5d13-02c0-4cf1-20180720@www.fau.de
DESCRIPTION:Sensory Sciences Guest lecture by Dr. Michael Christiansen
  from Medical Microsystems Laboratory at ETH Zurich\, Switzerland on F
 riday\, 22.11.24\, 15:00 in the seminar room (00.020) of the ZMPT/MVC 
 building\, Henkestr. 91\, 91052 Erlangen * * * * * * * * Magnetic Indu
 ction for Tracking Microrobots and Biosensing Dr. Michael Christiansen
  Senior Scientist at the Medical Microsystems Laboratory at ETH Zurich
 \, Switzerland Abstract: Interest has recently grown in biomedical mic
 rorobots\, microscale structures that incorporate magnetic materials t
 o enable noninvasive control and actuation for purposes such as target
 ed drug delivery. One challenge associated with the control of these m
 icrorobots in physiological settings is the need for some form of feed
 back to indicate their position and response to applied fields. Usuall
 y\, this is accomplished with optical methods or ultrasound\, which su
 ffer from limited tissue penetration\, or x-ray fluoroscopy\, which re
 quires ionizing radiation and the addition of contrast agents to the m
 icrorobots. Here\, I will discuss our efforts toward an alternative: u
 sing the time-changing magnetization of microrobots directly for simul
 taneous actuation and sensing via magnetic induction. Typical actuatio
 n frequencies of microrobots are in the range of Hz to 10s of Hz\, tho
 usands of times less than frequencies used in magnetic particle imagin
 g\, a related technique based on inductive sensing. To collect inducti
 ve signals at these unusually low frequencies\, we engineer systems th
 at can suppress background signal from the actuating field by 90 dB\, 
 isolating signals from model micromagnets that reveal information abou
 t their position and torque transfer to their surroundings. As a separ
 ate yet methodologically connected topic\, I will discuss our parallel
  efforts toward low cost biosensing based on inductive coils built int
 o printed circuit boards. That work focuses on the detection of protea
 ses\, enzymes that cleave peptides and proteins\, wh
DTSTART:20241122T150000Z
DTEND:20241122T163000Z
LOCATION:Seminar room (00.020) of the ZMPT/MVC building\, Henkestr. 91
 \, 91052 Erlangen
DTSTAMP:20260503T023853Z
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