Micro-patterned agarose gel devices for single-cell high-throughput microscopy of E. coli cells
AuthorPriest, DG; Tanaka, N; Tanaka, Y; Taniguchi, Y
Source TitleScientific Reports
PublisherNATURE PUBLISHING GROUP
University of Melbourne Author/sPriest, David
AffiliationSchool of Physics
Document TypeJournal Article
CitationsPriest, D. G., Tanaka, N., Tanaka, Y. & Taniguchi, Y. (2017). Micro-patterned agarose gel devices for single-cell high-throughput microscopy of E. coli cells. SCIENTIFIC REPORTS, 7 (1), https://doi.org/10.1038/s41598-017-17544-2.
Access StatusOpen Access
High-throughput microscopy of bacterial cells elucidated fundamental cellular processes including cellular heterogeneity and cell division homeostasis. Polydimethylsiloxane (PDMS)-based microfluidic devices provide advantages including precise positioning of cells and throughput, however device fabrication is time-consuming and requires specialised skills. Agarose pads are a popular alternative, however cells often clump together, which hinders single cell quantitation. Here, we imprint agarose pads with micro-patterned 'capsules', to trap individual cells and 'lines', to direct cellular growth outwards in a straight line. We implement this micro-patterning into multi-pad devices called CapsuleHotel and LineHotel for high-throughput imaging. CapsuleHotel provides ~65,000 capsule structures per mm2 that isolate individual Escherichia coli cells. In contrast, LineHotel provides ~300 line structures per mm that direct growth of micro-colonies. With CapsuleHotel, a quantitative single cell dataset of ~10,000 cells across 24 samples can be acquired and analysed in under 1 hour. LineHotel allows tracking growth of > 10 micro-colonies across 24 samples simultaneously for up to 4 generations. These easy-to-use devices can be provided in kit format, and will accelerate discoveries in diverse fields ranging from microbiology to systems and synthetic biology.
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