Home > Publications database > dMSCC: a microfluidic platform for microbial single-cell cultivation of Corynebacterium glutamicum under dynamic environmental medium conditions > print

001     888712
005     20210118134514.0
024 7 _ |a 10.1039/D0LC00711K
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037 _ _ |a FZJ-2020-05147
082 _ _ |a 540
100 1 _ |a Täuber, Sarah
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245 _ _ |a dMSCC: a microfluidic platform for microbial single-cell cultivation of Corynebacterium glutamicum under dynamic environmental medium conditions
260 _ _ |a Cambridge
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520 _ _ |a In nature and in technical systems, microbial cells are often exposed to rapidly fluctuating environmental conditions. These conditions can vary in quality, e.g., the existence of a starvation zone, and quantity, e.g., the average residence time in this zone. For strain development and process design, cellular response to such fluctuations needs to be systematically analysed. However, the existing methods for physically imitating rapidly changing environmental conditions are limited in spatio-temporal resolution. Hence, we present a novel microfluidic system for cultivation of single cells and small cell clusters under dynamic environmental conditions (dynamic microfluidic single-cell cultivation (dMSCC)). This system enables the control of nutrient availability and composition between two media with second to minute resolution. We validate our technology using the industrially relevant model organism Corynebacterium glutamicum. The organism was exposed to different oscillation frequencies between nutrient excess (feasts) and scarcity (famine). The resulting changes in cellular physiology, such as the colony growth rate and cell morphology, were analysed and revealed significant differences in the growth rate and cell length between the different conditions. dMSCC also allows the application of defined but randomly changing nutrient conditions, which is important for reproducing more complex conditions from natural habitats and large-scale bioreactors. The presented system lays the foundation for the cultivation of cells under complex changing environmental conditions.
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700 1 _ |a Golze, Corinna
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700 1 _ |a Ho, Phuong
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700 1 _ |a von Lieres, Eric
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700 1 _ |a Grünberger, Alexander
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773 _ _ |a 10.1039/D0LC00711K
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856 4 _ |y Published on 2020-10-23. Available in OpenAccess from 2021-10-23.
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