Lydia Sohn in lab

Research Bio

Lydia L. Sohn received her A.B. (Chemistry and Physics, magna cum laude 1988), A. M. (Physics, 1990), and Ph.D. (Physics, 1992) from Harvard University. She was an NSF/NATO postdoctoral fellow at Delft University of Technology (1992-1993) and a postdoctoral fellow at AT&T Bell Laboratories (1993-1995). Sohn was on the Physics faculty at Princeton University (1993-2003) prior to joining the Mechanical Engineering Dept. at UC Berkeley in 2003. In addition to being a Professor of Mechanical Engineering, Sohn is a Core Member of the UCSF-UC Berkeley Joint-Graduate Group in Bioengineering.

Sohn has received numerous awards, including the NSF CAREER, Army Research Office Young Investigator Award, and the DuPont Young Faculty Award. In 2010, Sohn received the prestigious W. M. Keck Foundation Medical Research award to develop a label-free method for screening and sorting rare cells. Sohn was named a Bakar Fellow at UC Berkeley in 2013 for her innovative work in isolating and screening single CTCs from metastatic breast-cancer patients. In 2014, Sohn’s developed label-free method—Node-Pore Sensing (NPS)—was named one of five “Revolutionary Platform Technologies for Advancing Life Sciences Research” in a competition sponsored by 6 major foundations, including the W. M. Keck Foundation, Gordon & Betty Moore Foundation, Kavli Foundation, Burroughs-Wellcome Fund, John Templeton Foundation, and Research Corporation, and Sohn was honored at the White House Office of Science and Technology Policy for this award. At the prestigious 2014 Oakridge Conference, Emerging Clinical & Laboratory Diagnostics: The Portable Lab, the American Association of Clinical Chemistry bestowed NPS with an Outstanding Poster Award for its high clinical value potential.

She previously served on the Executive Committee of the UCSF-UCB Graduate Program in Bioengineering and on the Scientific Advisory Board of the Boulder School for Condensed Matter & Materials Physics. Sohn chaired UC Berkeley’s Institutional Biosafety Committee from 2011-2022 and served as the interim Vice Chair in the Mechanical Engineering Department in 2021. Sohn is a Fellow of the American Institute for Medical and Biological Engineering and is an Associate Member of the Women in Cell Biology Committee of the American Society of Cell Biology.  She is a Core Member, UCSF-UC Berkeley Graduate Group in Bioengineering and an Affiliate Member of the UC Berkeley/UCSF Computational Precision Health.

Research Expertise and Interest

micro-nano engineering, bioengineering, biomedical devices biomedical numerical analysis, microfluidics and nanofluidics, bioanalytical separations and disease diagnostics, stem cells, cancer

In the News

Could Liposomes Be the Unsung Heroes of the Pandemic?

Liposomes may be the unsung heroes of the COVID-19 pandemic. Without the protection of these microscopic vesicles, the delicate strands of messenger RNA (mRNA) that lie at the heart of the Pfizer and Moderna COVID-19 vaccines would be quickly destroyed by enzymes in the body, making it nearly impossible for their genetic instructions to reach the insides of human cells. But vaccine delivery isn’t the only way that these particles can be used in the battle against COVID-19. In a new study, a team of engineers at the University of California, Berkeley, attached SARS-CoV-2 “spike” proteins to the surface of liposomes, creating lab-made mimics of the deadly virus which the researchers call “spike-liposomes.”

New technique ‘prints’ cells to create diverse biological environments

Like humans, cells are easily influenced by peer pressure. Take a neural stem cell in the brain: Whether this cell remains a stem cell or differentiates into a fully formed brain cell is ultimately determined by a complex set of molecular messages the cell receives from countless neighbors. Understanding these messages is key for scientists hoping to harness these stem cells to treat neurological conditions like Alzheimer’s or Parkinson’s.

Pinning down malevolent cancer cells

Lydia Sohn is developing a new technique based on microtechnology to distinguish between different types of circulating tumor cells also known as CTC’s . She hopes this more sensitive approach will help clinicians learn which CTC’s are most prone to lead to metastasis.

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