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\title{Science AMA Series: I'm Jonathan Sakkos, a graduate student in
mechanical engineering at the University of Minnesota. I trap bacteria
within porous materials for cleaning pollutants from water. AMA!}



\author[1]{Jonathan_Sakkos }%
\author[1]{r/Science AMAs}%
\affil[1]{Affiliation not available}%


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  \date{April 24, 2026}


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\begin{abstract}
Hi Reddit! I'm Jonathan Sakkos, a mechanical engineering PhD candidate.
I'm a member of the Bioencapsulation Laboratory in the Department of
Mechanical Engineering and the BioTechnology Institute at the University
of Minnesota in Minneapolis, Minnesota. I study bioencapsulation
(physical confinement) of bacteria within porous silica gels for
cleaning pollutants from water in collaboration with Professor Wackett
in the Department of Biochemistry, Molecular Biology, and Biophysics.
Bacteria have a wonderful ability to eat many harmful chemicals
(especially hydrocarbons) found in water as a result of millions of
years of evolution. I study the interface between the biology and the
material as well as the diffusion of chemicals within the material in
order to harness the unique abilities of bacteria in an efficient
manner. We recently published a paper in Biotechnology and
Bioengineering entitled ``Engineering of a silica encapsulation platform
for hydrocarbon degradation using Pseudomonas sp. NCIB 9816-4'' in which
we encapsulated a bacterium which is known to biodegrade (eat) over 100
pollutants and optimized the material to be as strong and porous as
possible while keeping our bacteria happy . Our lab has also studied the
biodegradation of atrazine, a very popular herbicide, by encapsulated
bacteria. I'll be here at 1 pm ET (10 am PT, 6 pm UT) to answer your
questions. Ask me anything about bioencapsulation and what bacteria can
do for you! 3 pm CDT: I have some lab work to do, but I'll check back
later this afternoon. Thanks for all of the thoughtful questions. 6 pm
CDT: I'm signing off. This has been fun and thanks for the great
questions!%
\end{abstract}%



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