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McKelvey School of Engineering

Brown School

MEMS SEMINAR: Innovating with Time and Space: from Biodegradable Electronics to Implosive Optics

Thursday, February 22 | 2:30 PM - 3:30 PM

Stephen F. & Camilla T. Brauer Hall
6548 Forest Park Pkwy, St. Louis, MO 63112, USA

Quansan Yang, PhD, Postdoctoral Researcher at MIT

The development of electronic and optical systems that harmoniously evolve with dynamic biological and ecological environments is crucial for advancing healthcare and sustainability. In this talk, I will explore the role of dynamic adaptability in materials and manufacturing to advance these systems, and explain how these can address grand societal challenges. First, driven by healthcare concerns, I will introduce a biodegradable electronic device that can serve as ‘medicine’ to eliminate the side effects of drug overdose and enable on-demand therapeutics within clinically relevant timeframes. Second, I will discuss the engineering innovations in device functionalities and manufacturing approaches (e.g., the development of the first biodegradable micro-electromechanical systems (MEMS) and advancements in sustainable, scalable laser manufacturing techniques) to accelerate the deployment of biodegradable electronics into everyday life, with an emphasis on E-waste mitigation. Third, I will present a strategy for the volumetric and simultaneous deposition of diverse functional materials in a 3D, ‘arbitrary’, and nanoprecise manner, and illustrate the utility with examples of 3D optical chips and ultra-compact visible-light optical neural networks to increase computing efficiency and lower energy consumption.

Event Type



McKelvey School of Engineering


Science & Technology



Mechanical Engineering & Materials Science
Event Contact

Kyla Kordell, kkyla@wustl.edu

Speaker Information

Quansan Yang is a postdoctoral researcher at MIT, working in the labs of Prof. Edward S. Boyden and Prof. Peter T.C. So. He received his Ph.D. in Mechanical Engineering from Northwestern University in 2021, working with Prof. John A. Rogers. Previously, he obtained his B.S. degree in Engineering Mechanics from Tsinghua University in 2016. He actively collaborates with industrial companies to emphasize the societal impacts of his research, including Fujikura and Edwards Lifesciences. He has been named on MIT Technology Review’s Global Innovators Under 35 list and on Forbes 30 Under 30 list in Science.

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