Publication

Single microbe trap and release in sub-microfluidics

Andreas Vasdekis
2013
Journal Articles

Abstract

Life on Earth is comprised mostly of microbes with significant implications in disease and carbon cycling. However, their dimensions and mobility make microbes challenging to analyse on-chip. A sub-micron resolution microfluidic system (sub-microfluidics) capable of trapping and releasing single Escherichia coli bacteria is presented. The fabrication method based on electron-beam and cast molding lithography is described, as well as the trap and release of single E. coli. The release time from the trap is found to depend on cell morphology.

Official source

https://infoscience.epfl.ch/entities/publication/8914ccb6-b687-4a04-a7fa-91766bc161ad

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Andreas Vasdekis
2013
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/8914ccb6-b687-4a04-a7fa-91766bc161ad

About this result

Related concepts (32)

Escherichia coli

Escherichia coli (ˌɛʃəˈrɪkiə_ˈkoʊlaɪ ) is a Gram-negative, facultative anaerobic, rod-shaped, coliform bacterium of the genus Escherichia that is commonly found in the lower intestine of warm-blooded organisms. Most E. coli strains are harmless, but some serotypes such as EPEC, and ETEC are pathogenic and can cause serious food poisoning in their hosts, and are occasionally responsible for food contamination incidents that prompt product recalls.

Droplet-based microfluidics

Droplet-based microfluidics manipulate discrete volumes of fluids in immiscible phases with low Reynolds number and laminar flow regimes. Interest in droplet-based microfluidics systems has been growing substantially in past decades. Microdroplets offer the feasibility of handling miniature volumes (μl to fl) of fluids conveniently, provide better mixing, encapsulation, sorting, sensing and are suitable for high throughput experiments.

Paper-based microfluidics

Paper-based microfluidics are microfluidic devices that consist of a series of hydrophilic cellulose or nitrocellulose fibers that transport fluid from an inlet through the porous medium to a desired outlet or region of the device, by means of capillary action. This technology builds on the conventional lateral flow test which is capable of detecting many infectious agents and chemical contaminants. The main advantage of this is that it is largely a passively controlled device unlike more complex microfluidic devices.

Related publications (32)

Single microbe trap and release in sub-microfluidics

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