Near-surface effects on the controlled motion of magnetotactic bacteria

Islam S.M. Khalil; Ahmet Fatih Tabak; Tijmen Hageman; Mohamed Ewis; Marc Pichel; Mohamed E. Mitwally; Nermeen Serag El-Din; Leon Abelmann; Metin Sitti

doi:10.1109/ICRA.2017.7989705

Near-surface effects on the controlled motion of magnetotactic bacteria

Islam S.M. Khalil, Ahmet Fatih Tabak, Tijmen Hageman, Mohamed Ewis, Marc Pichel, Mohamed E. Mitwally, Nermeen Serag El-Din, Leon Abelmann, Metin Sitti

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

9 Citations (Scopus)

Abstract

Magnetotactic bacteria have the potential to controllably reach stagnant fluids inside the human body and achieve targeted drug delivery. In this application, motion of the magnetotactic bacteria is influenced by the near-surface effects such as the background flows and surface interactions. Here, we provide a hydrodynamic model of bipolarly-flagellated magnetotactic bacteria (Magnetospirillum gryphiswaldense strain MSR-1) based on the resistive-force theory to resemble the helical body and the two flagella bundles, and investigate their swimming characteristics in two environments, i.e., free-space and near flat walls. The free-space is studied using capillary tubes with depth of 200 ßm, whereas the effect of the flat walls is investigated using microfluidic chips with depth of 5 μm. We find that the linear speeds of bacteria near- and far-surface are 36±16.4 μm/s (mean±s.d.) and 46±6.8 μm/s, respectively, whereas their respective angular velocities are 12.5±5.7 rad/s and 13.5±5.0 rad/s.

Original language	English
Title of host publication	ICRA 2017 - IEEE International Conference on Robotics and Automation
Publisher	IEEE
Pages	5976-5982
Number of pages	7
ISBN (Electronic)	9781509046331
DOIs	https://doi.org/10.1109/ICRA.2017.7989705
Publication status	Published - 21 Jul 2017
Event	2017 IEEE International Conference on Robotics and Automation, ICRA 2017: Innovation, Entrepreneurship, and Real-world Solutions - Singapore, Singapore Duration: 29 May 2017 → 3 Jun 2017 http://www.icra2017.org/

Conference

Conference	2017 IEEE International Conference on Robotics and Automation, ICRA 2017
Abbreviated title	ICRA 2017
Country/Territory	Singapore
City	Singapore
Period	29/05/17 → 3/06/17
Internet address	http://www.icra2017.org/

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10.1109/ICRA.2017.7989705

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@inproceedings{8727836aeca442589906a743946757c5,

title = "Near-surface effects on the controlled motion of magnetotactic bacteria",

abstract = "Magnetotactic bacteria have the potential to controllably reach stagnant fluids inside the human body and achieve targeted drug delivery. In this application, motion of the magnetotactic bacteria is influenced by the near-surface effects such as the background flows and surface interactions. Here, we provide a hydrodynamic model of bipolarly-flagellated magnetotactic bacteria (Magnetospirillum gryphiswaldense strain MSR-1) based on the resistive-force theory to resemble the helical body and the two flagella bundles, and investigate their swimming characteristics in two environments, i.e., free-space and near flat walls. The free-space is studied using capillary tubes with depth of 200 {\ss}m, whereas the effect of the flat walls is investigated using microfluidic chips with depth of 5 μm. We find that the linear speeds of bacteria near- and far-surface are 36±16.4 μm/s (mean±s.d.) and 46±6.8 μm/s, respectively, whereas their respective angular velocities are 12.5±5.7 rad/s and 13.5±5.0 rad/s.",

author = "Khalil, {Islam S.M.} and Tabak, {Ahmet Fatih} and Tijmen Hageman and Mohamed Ewis and Marc Pichel and Mitwally, {Mohamed E.} and El-Din, {Nermeen Serag} and Leon Abelmann and Metin Sitti",

year = "2017",

month = jul,

day = "21",

doi = "10.1109/ICRA.2017.7989705",

language = "English",

pages = "5976--5982",

booktitle = "ICRA 2017 - IEEE International Conference on Robotics and Automation",

publisher = "IEEE",

address = "United States",

note = "2017 IEEE International Conference on Robotics and Automation, ICRA 2017 : Innovation, Entrepreneurship, and Real-world Solutions, ICRA 2017 ; Conference date: 29-05-2017 Through 03-06-2017",

url = "http://www.icra2017.org/",

}

Khalil, ISM, Tabak, AF, Hageman, T, Ewis, M, Pichel, M, Mitwally, ME, El-Din, NS, Abelmann, L & Sitti, M 2017, Near-surface effects on the controlled motion of magnetotactic bacteria. in ICRA 2017 - IEEE International Conference on Robotics and Automation., 7989705, IEEE, pp. 5976-5982, 2017 IEEE International Conference on Robotics and Automation, ICRA 2017, Singapore, Singapore, 29/05/17. https://doi.org/10.1109/ICRA.2017.7989705

TY - GEN

T1 - Near-surface effects on the controlled motion of magnetotactic bacteria

AU - Khalil, Islam S.M.

AU - Tabak, Ahmet Fatih

AU - Hageman, Tijmen

AU - Ewis, Mohamed

AU - Pichel, Marc

AU - Mitwally, Mohamed E.

AU - El-Din, Nermeen Serag

AU - Abelmann, Leon

AU - Sitti, Metin

PY - 2017/7/21

Y1 - 2017/7/21

N2 - Magnetotactic bacteria have the potential to controllably reach stagnant fluids inside the human body and achieve targeted drug delivery. In this application, motion of the magnetotactic bacteria is influenced by the near-surface effects such as the background flows and surface interactions. Here, we provide a hydrodynamic model of bipolarly-flagellated magnetotactic bacteria (Magnetospirillum gryphiswaldense strain MSR-1) based on the resistive-force theory to resemble the helical body and the two flagella bundles, and investigate their swimming characteristics in two environments, i.e., free-space and near flat walls. The free-space is studied using capillary tubes with depth of 200 ßm, whereas the effect of the flat walls is investigated using microfluidic chips with depth of 5 μm. We find that the linear speeds of bacteria near- and far-surface are 36±16.4 μm/s (mean±s.d.) and 46±6.8 μm/s, respectively, whereas their respective angular velocities are 12.5±5.7 rad/s and 13.5±5.0 rad/s.

AB - Magnetotactic bacteria have the potential to controllably reach stagnant fluids inside the human body and achieve targeted drug delivery. In this application, motion of the magnetotactic bacteria is influenced by the near-surface effects such as the background flows and surface interactions. Here, we provide a hydrodynamic model of bipolarly-flagellated magnetotactic bacteria (Magnetospirillum gryphiswaldense strain MSR-1) based on the resistive-force theory to resemble the helical body and the two flagella bundles, and investigate their swimming characteristics in two environments, i.e., free-space and near flat walls. The free-space is studied using capillary tubes with depth of 200 ßm, whereas the effect of the flat walls is investigated using microfluidic chips with depth of 5 μm. We find that the linear speeds of bacteria near- and far-surface are 36±16.4 μm/s (mean±s.d.) and 46±6.8 μm/s, respectively, whereas their respective angular velocities are 12.5±5.7 rad/s and 13.5±5.0 rad/s.

U2 - 10.1109/ICRA.2017.7989705

DO - 10.1109/ICRA.2017.7989705

M3 - Conference contribution

AN - SCOPUS:85028006052

SP - 5976

EP - 5982

BT - ICRA 2017 - IEEE International Conference on Robotics and Automation

PB - IEEE

T2 - 2017 IEEE International Conference on Robotics and Automation, ICRA 2017

Y2 - 29 May 2017 through 3 June 2017

ER -

Near-surface effects on the controlled motion of magnetotactic bacteria

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