Publication detail

Confined Bubble-Propelled Microswimmers in Capillaries: Wall Effect, Fuel Deprivation, and Exhaust Product Excess

KHEZRI, B. NOVOTNÝ, F. MOO, J. NASIR, M. PUMERA, M.

Original Title

Confined Bubble-Propelled Microswimmers in Capillaries: Wall Effect, Fuel Deprivation, and Exhaust Product Excess

Type

journal article in Web of Science

Language

English

Original Abstract

Self-propelled autonomous nano/microswimmers are at the forefront of materials science. These swimmers are expected to operate in highly confined environments, such as between the grains of soil or in the capillaries of the human organism. To date, little attention is paid to the problem that in such a confined environment the fuel powering catalytic nano/microswimmers can be exhausted quickly and the space can be polluted with the product of the catalytic reaction. In addition, the motion of the nano/microswimmers may be influenced by the confinement. These issues are addressed here, showing the influence of the size of the capillary and length of the micromotor on the motion and the influence of the depletion of the fuel and excess of the exhaust products. Theoretical modeling is provided as well to bring further insight into the observations. This article shows challenges that these systems face and stimulates research to overcome them.

Keywords

confinement; hydrodynamic interactions; microfluidic channels; micromotors; microswimmers

Authors

KHEZRI, B.; NOVOTNÝ, F.; MOO, J.; NASIR, M.; PUMERA, M.

Released

1. 7. 2020

Publisher

WILEY-V C H VERLAG GMBH

Location

WEINHEIM

ISBN

1613-6829

Periodical

Small

Year of study

16

Number

27

State

Federal Republic of Germany

Pages from

2000413-1

Pages to

2000413-8

Pages count

8

URL