Event Calendar

Mechanical Engineering 2020 Fall Virtual Seminar Series: Class 530.803 @ Join online via Zoom
Oct 29 @ 3:00 pm – 4:00 pm

Meeting ID: 917 5245 0849 | Passcode: 605594

“Soft, shape, sense: Fabricating hierarchically-patterned soft mechanical sensors”

Presented by Professor Kristen Dorsey
Assistant Professor of Engineering, Smith College

Physically-soft mechanical sensors are poised to unlock exciting new applications in wearable devices, robotics, and human-machine interfaces. This interdisciplinary area borrows from materials science, mechanical engineering, and electrical engineering to realize physically soft sensors that can measure deformations such as strain, torsion, and pressure. A promising development in soft mechanical sensors is hierarchically-patterned structures within the sensor, which enables both deformation selectivity and the ability to tune sensing properties.

I will discuss work and challenges related to fabricating hierarchically-patterned sensors. I will also present work in enhancing the selectivity of stretchable sensors, towards tuning a wearable sensor for measuring human body motions and using origami patterns to improve mechanical selectivity between pressure and strain.

Dr. Kris Dorsey is an assistant professor of engineering in the Picker Engineering Program at Smith College. She was a President’s Postdoctoral Fellow at the University of California, Berkeley and University of California, San Diego. Dr. Dorsey graduated from Carnegie Mellon University with a Ph.D. in Electrical and Computer Engineering and earned her Bachelors of Science in Electrical and Computer Engineering from Olin College. She founded The MicroSMITHie Lab at Smith College to investigate micro- and miniature-scale sensor design and to prepare undergraduates for graduate study in engineering. Her current research interests include novel morphology soft sensors, stability concerns for soft-material sensors, and sensors for soft robots and wearable devices. Dr. Dorsey has co-authored several publications on hyperelastic strain sensors, novel soft lithography processes, and the stability of gas chemical sensors. In 2019, she received the NSF CAREER award.

Mechanical Engineering 2020 Fall Virtual Seminar Series: Class 530.803 @ Join online via Zoom
Nov 5 @ 3:00 pm – 4:00 pm

Meeting ID: 917 5245 0849 | Passcode: 605594

“Mechanics of the extracellular matrix and its biophysical consequences”

Presented by Professor Herbert Levine
Professor of Physics and Bioengineering, Northeastern University

In order to metastasize, cancer cells must leave the primary tumor and transit through collagen-rich fibrous material known as the extra-cellular matrix (ECM). This material has interesting mechanical properties, properties which directly affect its reciprocal interaction with cells. This talk will provide an introduction to recent efforts to formulate simple yet informative mathematical models of ECM behavior and compare these to increasing quantitative experimental data.

Dr. Herbert Levine is a Professor of Physics and Bioengineering at Northeastern University and has adjunct faculty positions at Rice University and MD Anderson Cancer Center. For several decades Dr. Levine has been an acknowledged leader in applying methods from physical science to living systems. He has served as chair of the Biological Physics division of the American Physical Society and the Biological Physics interest group of the National Academy of Sciences, to which he was elected in 2011. He is on the editorial board of PNAS, has been an associate editor of Physical Review Letters, and recently finished a term as editor-in-chief of Physical Biology. Currently he is the lead of the Northeastern branch of a National Science Foundation Physics Frontier Center devoted to theoretical biological physics and the coordinator of an international network of graduate students working on the physics of living systems.

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