Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Kristen Ramsey (Fed)

Research Microbiologist

Kristen Ramsey, PhD is a National Research Council (NRC) postdoctoral researcher in the Biomaterials Group, working under the mentorship of Kirsten Parratt.

Kristen received her B.S in General Biology from the University of Maryland and earned her PhD in Microbiology at Yale University under Barbara Kazmierczak. Her doctoral work focused on identifying signals influencing phenotypic heterogeneity in Pseudomonas aeruginosa using targeted molecular approaches in combination with advanced analytical measurements including flow cytometry and timelapse microscopy. At NIST, Kristen is building on her previous experience to identify fit-for-purpose test methods to measure and characterize microbial cell viability using fluorescence and impedance flow cytometry in combination with microbial growth-based assays. Her work focuses on improving microbial counting measurement assurance by expanding beyond cell count to also incorporate high-quality viability measurements that are transferrable across use cases. Outcomes from this project will support stakeholders in Biotechnology in the form of improved measurements, documentary standards, and reference datasets.

Awards

  • National Research Council (NRC) Postdoctoral Award, NIST, 2026
  • Robert J. Kadner Award for an Outstanding Poster Presentation by a Graduate Student, BLAST XVIII, 2025
  • Honorable Mention, National Science Foundation Graduate Research Fellowship, 2020
  • Undergraduate Research Fellowship, Howard Hughes Medical Institute, 2017
Created April 22, 2026, Updated August 10, 2026
Was this page helpful?