The development of strategies to reduce the load of unwanted bacteria is a fundamental challenge in industrial processing, environmental sciences and medical applications. Here, we report a new method to sequester motile bacteria from a liquid, based on passive, deployable micro-traps that confine bacteria using micro-funnels that open into trapping chambers. Even in low concentrations, micro-traps afford a 70% reduction in the amount of bacteria in a liquid sample, with a potential to reach >90% as shown by modelling improved geometries. This work introduces a new approach to contain the growth of bacteria without chemical means, an advantage of particular importance given the alarming growth of pan-drug-resistant bacteria.

Deployable micro-traps to sequester motile bacteria / R. Di Giacomo, S. Krodel, B. Maresca, P. Benzoni, R. Rusconi, R. Stocker, C. Daraio. - In: SCIENTIFIC REPORTS. - ISSN 2045-2322. - 7:1(2017), pp. 45897.1-45897.8. [10.1038/srep45897]

Deployable micro-traps to sequester motile bacteria

P. Benzoni;
2017

Abstract

The development of strategies to reduce the load of unwanted bacteria is a fundamental challenge in industrial processing, environmental sciences and medical applications. Here, we report a new method to sequester motile bacteria from a liquid, based on passive, deployable micro-traps that confine bacteria using micro-funnels that open into trapping chambers. Even in low concentrations, micro-traps afford a 70% reduction in the amount of bacteria in a liquid sample, with a potential to reach >90% as shown by modelling improved geometries. This work introduces a new approach to contain the growth of bacteria without chemical means, an advantage of particular importance given the alarming growth of pan-drug-resistant bacteria.
Bacteria; Escherichia coli; Helicobacter pylori; Humans; Pseudomonas aeruginosa; Salmonella enterica; Vibrio cholerae; Cell Movement; Water Microbiology
Settore ING-IND/22 - Scienza e Tecnologia dei Materiali
Settore BIO/13 - Biologia Applicata
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2434/881336
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