Woodruff School of Mechanical Engineering

Faculty Candidate Seminar


Flexible and Stretchable Biointegrated Devices


Dr. Roozbeh Ghaffari


MIT Research Laboratory of Electronics, Micromechanics Group


Thursday, January 29, 2015 at 11:00:00 AM


MRDC Building, Room 4211


Dr. Julien Meaud


Advances in the microelectronics and telecommunications industries have driven important breakthroughs in medical technologies and health diagnostics. However, there are fundamental gaps in size, sensing modalities and mechanical properties between standard rigid electronics, employed in medical devices today, and the soft, dynamically deformable cellular structures found in biology. Here, I describe novel materials, mechanics and designs for emerging classes of non-invasive and minimally invasive medical devices, including flexible catheter-based systems and epidermal electronics. These emerging devices incorporate microfabricated arrays of sensors, actuators and silicon nanomembrane semiconductors, configured in ultrathin, flexible formats for continuous monitoring, therapy delivery and energy harvesting. Quantitative analyses of strain distributions and circuit performances under stress illustrate the ability of these systems to mechanically couple with moist soft biological tissues, in a way that is mechanically invisible to the target biological substrate and comfortable for the patient. As demonstrations of this technology, I present representative examples of flexible and stretchable systems for use in both non-invasive and minimally invasive applications, which leverage the same class of microfabricated circuits and stretchable sensor arrays. The fabrication strategies and design concepts described in this talk can be tailored for various biological substrates and geometries of interest, and thus have the potential to broadly bridge the gap that exists between rigid electronics and biology.


Dr. Roozbeh Ghaffari obtained his BS and MEng degrees in electrical engineering from the Massachusetts Institute of Technology in 2001 and 2003, respectively. He received his PhD degree in biomedical engineering from the Harvard-MIT Division of Health Sciences and Technology in 2008. Upon completion of his graduate studies, Dr. Ghaffari co-founded MC10 Inc. MC10 is a venture-funded company commercializing bio-integrated devices for wearable applications. Dr. Ghaffari currently leads advanced technology at MC10 and has shaped the technology development focus around able consumer and medical devices. He also holds a Research Scientist appointment in the MIT Research Laboratory of Electronics. His contributions in bio-integrated devices have been recognized with the Helen Carr Peake PhD Research Prize (2008) and MIT Technology Review magazine’s Top 35 Innovators Under 35 (2013). He has published over 30 research papers and is inventor on over 30 patents applications and awards.


Refreshments will be served.