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[Lab on a chip] Mobile microrobots for bioengineering applications


Untethered micron-scale mobile robots can navigate and non-invasively perform specific tasks inside unprecedented and hard-to-reach inner human body sites and inside enclosed organ-on-a-chip microfluidic devices with live cells. They are aimed to operate robustly and safely in complex physiological environments where they will have a transforming impact in bioengineering and healthcare. Research along this line has already demonstrated significant progress, increasing attention, and high promise over the past several years. The first-generation microrobots, which could deliver therapeutics and other cargo to targeted specific body sites, have just been started to be tested inside small animals toward clinical use. Here, we review frontline advances in design, fabrication, and testing of untethered mobile microrobots for bioengineering applications. We convey the most impactful and recent strategies in actuation, mobility, sensing, and other functional capabilities of mobile microrobots, and discuss their potential advantages and drawbacks to operate inside complex, enclosed and physiologically relevant environments. We lastly draw an outlook to provide directions in the veins of more sophisticated designs and applications, considering biodegradability, immunogenicity, mobility, sensing, and possible medical interventions in complex microenvironments.

Hakan Ceylan,ab Joshua Giltinan,abc Kristen Kozielskia and Metin Sitti*abc Author affiliations * Corresponding authors a Physical Intelligence Department, Max Planck Institute for Intelligent Systems, 70569 Stuttgart, Germany E-mail: sitti@is.mpg.de b Max Planck ETH Center for Learning Systems, 70569 Stuttgart, Germany c Department of Mechanical Engineering, Carnegie Mellon University, Pittsburgh, USA

Link: http://pubs.rsc.org/en/Content/ArticleLanding/2017/LC/C7LC00064B?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+rss%2FLC+%28RSC+-+Lab+Chip+latest+articles%29&utm_content=Google+Feedfetcher#!divAbstract

#05112017 #organonachip #microrobot #microenvironment #sensing #biosensing

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