Prof. Sang Hyun Lee’s lab (http://websites.umass.edu/leegroup) at the University of Massachusetts (UMass) Amherst in Microbiology Department is looking for a Ph.D. student in the areas of 1) biofilm formation and microbial transport in porous media and 2) fungi-oil interaction. The PhD position is available for Fall 2025 and funded with competitive salary and benefits.
What we do:
In the Biofluids Laboratory, we explore the intricate dynamics of microbe-fluid interactions across diverse systems including subsurface, water treatment filters, and our body. Using cutting-edge tools such as microfluidics (Lab-on-a-chip), molecular biology, and numerical simulations, we aim to enhance our fundamental understanding of microbe-fluid interactions. Moreover, we are dedicated to translating these insights into practical solutions by developing innovative biotechnologies that can control and engineer biofilm processes.
Research Focus Areas:
We specialize in fabricating microfluidic chips that mimic real systems and visualizing microbe-fluid interactions to directly monitor microbial processes at the biofilm and single-cell level. Current research areas include:
Biofilm formation in porous media: Biofilms can significantly impact fluid flow and vice versa, causing issues like clogging water treatment filters and contamination of medical devices. Our research delves into how flow dynamics and channel geometry affect chemotaxis, cell attachment, quorum sensing, and biofilm growth, aiming to advance biofilm control technologies.
Fungi-oil interaction (bioremediation): Remediating oil spills is challenging due to the entrapment of oil contaminants in low permeability regions. Our research investigates how microbes maneuver through multiphase porous media systems, locate, and interact with oil contaminants utilizing microchips. This understanding serves as a foundation for developing innovative technologies (e.g., bioremediation, oil recovery)
Who are we looking for & how to apply:
Successful candidates should have a degree in microbiology, environmental/bio- engineering, or a related field. Strong background in microfluidics and fluid mechanics are preferred and experience in coding and numerical simulation is encouraged. If interested, please email Dr. Lee (sanghyunlee@umass.edu) with cover letter, your CV, transcripts, and contact info of two references. Any questions about the application process or the positions can also be directed to Dr. Lee via email. The application procedures for the PhD position can be found here: https://www.micro.umass.edu/graduate/program-overview
About UMass Amherst Microbiology:
UMass Amherst, the Commonwealth's flagship campus, is a nationally ranked public research university (R1) offering a full range of undergraduate, graduate and professional degrees. The University is part of the Five Colleges (including Amherst College, Hampshire College, Mount Holyoke College, and Smith College), which adds to the intellectual energy of the region. The Department of Microbiology in the College of Natural Sciences (https://www.micro.umass.edu/) has a strong commitment to microbiology research and to graduate and undergraduate education with strengths in pathogenic microbiology, environmental microbiology, and microbial biotechnology. The Department of Microbiology is housed in modern research facilities and also has excellent core facilities (https://www.umass.edu/ials/core-facilities) that include a Nikon Center of Excellence, Nanofabrication Cleanroom, and Massachusetts Green High Performance Computing Center.