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SUMMARY:Active Compound Droplets - Annette Zippelius\, Georg-August-Univer
 sität Göttingen
DTSTART:20220510T120000Z
DTEND:20220510T130000Z
UID:TALK170756@talks.cam.ac.uk
CONTACT:Camille Scalliet
DESCRIPTION:Controlled locomotion on micro- or nanometer scales is of grea
 t interest for both\, cell biology and microrobotics. In the former case\,
  one aims to understand the swimming motion of microorganisms and cell mot
 ility. In the latter case\, the goals are control and design of microrobot
 s optimized for a variety of biomedical app- lications. We focus here on t
 he propulsion of a liquid droplet which is driven by an encapsulated activ
 e device. Two driving mechanisms are discussed in detail: a collection of 
 point forces representing an autonomous swimmer and a squirmer. In additio
 n to self-propulsion\, we also consider additional application of external
  forces or torques\, which are necessary for a controlled locomotion of dr
 oplet and encapsulated device. The big advantage of self-propulsion is tha
 t energy can be supplied by the surroundings\; the main disadvantage is la
 ck of control. There- fore a combination of both\, self-propulsion and act
 uation by external fields\, is a promising candidate to achieve optimal co
 ntrol of an otherwise self-propelled composite device.
LOCATION:Center for Mathematical Sciences\, Lecture room MR4\, or https://
 maths-cam-ac-uk.zoom.us/j/98016675669
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