Department Seminar by Dr. Onur Taşcı

Microwheels: Magnetic Particle Rolling Micro Robots and Their Biomedical Applications

Dr. Onur Taşcı, Colorado School of Mines

Date:
Friday, May 20, 2016
Time: 10:40
Place: EA 409

Microrobots have great potential to revolutionize medicine by navigating through body fluids to achieve targeted therapy and diagnosis. Current microbot technology requires complex microfabrication methods and resulting microbots lack precise directional control and high propulsion speeds.

In this presentation, I will talk about how magnetic micro particles can be assembled into wheel shaped structures (microwheels) that can roll and translate at high speeds (~100µm/s) faster than other similar sized microbot technologies. We can precisely preprogram the rolling paths of the microwheels or control them manually using a joystick.

After explaining the working principles of microwheels, I will talk about various biomedical applications we are working on. Mainly, we are using drug loaded microwheels to attack blood clots to open the clogged blood vessels. With the use of this new method, much faster blood clot removal (fibrinolysis) rates can be achieved compared to the current medical approach.

Another biomedical application is using microwheels as cargo carriers to transport biomaterials. Specifically, I will show three different methods to control and manipulate human cells using microwheel based propulsion.

I will finish my talk by discussing several other potential uses of microwheels in chemistry and biomedicine.

Short bio:

Dr. Onur Tasci received his BSc degree in Electrical and Electronics Engineering and minor degree in Biological Sciences from Middle East Technical University. Following that he made his MSc studies at Bilkent University with Professor Ergin Atalar and developed a focused tumor heating system using magnetic nanoparticles and combination of static and alternating external magnetic fields.

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