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.
Ratanachat (Siam) Racharaks (Fed)
Synthetic Biologist
Siam Racharaks is a research scientist in the Cellular Engineering Group at NIST. His current work focuses on automated, miniaturized workflows to advance measurement assurance for cell-free expression systems. Before joining NIST, Siam engineered cyanobacterial strains for fatty acid biomanufacturing using CRISPR during his graduate research; investigated engineered bacteriophages as a delivery vehicle for a CRISPRi-based therapy during his postdoctoral research; led a high-throughput screening effort for novel antibiotics at the Walter Reed Army Institute of Research; and served as a Science, Engineering, and Technical Assistant supporting the Advanced Research Projects Agency for Health (ARPA-H).
SELECTED PUBLICATIONS
Muletz-Wolz, C.R., Urrutia-Carter, J., Osborne, O., Kutos, S., Meneses Montano, J., Madison, J.D., Gratwicke, B., Racharaks, R., Roncal, N.E., Jimenez, R.R. and Ellison, A. (2025). Novel antimicrobial peptides and peptide-microbiome crosstalk in Appalachian salamander skin. npj Biofilms and Microbiomes, 11(1), 213. https://doi.org/10.1038/s41522-025-00837-0
Ipoutcha, T., Racharaks, R., Huttelmaier, S., Wilson, C. J., Ozer, E. A., & Hartmann, E. M. (2024). A synthetic biology approach to assemble and reboot clinically relevant Pseudomonas aeruginosa tailed phages. Microbiology spectrum, 12(3), e02897-23. https://doi.org/10.1128/spectrum.02897-23
Racharaks, R., Arnold, W., & Peccia, J. (2021). Development of CRISPR-Cas9 knock-in tools for free fatty acid production using the fast-growing cyanobacterial strain Synechococcus elongatus UTEX 2973. Journal of microbiological methods, 189, 106315. https://doi.org/10.1016/j.mimet.2021.106315
Racharaks, R., & Peccia, J. (2019). Cryopreservation of Synechococcus elongatus UTEX 2973. Journal of Applied Phycology, 31(4), 2267-2276. https://doi.org/10.1007/s10811-018-1714-9
Racharaks, R., Ge, X., & Li, Y. (2015). Cultivation of marine microalgae using shale gas flowback water and anaerobic digestion effluent as the cultivation medium. Bioresource technology, 191, 146-156. https://doi.org/10.1016/j.biortech.2015.04.065
Awards
- 2013 NSF Graduate Research Fellowship
- 2020 TL1 Postdoctoral Research Fellowship