Improvement of bacterial tethering using both physical and chemical surface modification for flagella spin actuators

Hyun Min Choi, Kyo in Koo, Sunkil Park, Myoung Jun Jeong, Gil Sub Kim, Jaehong Park, Jung Min Lim, Woo Jae Chung, Seung Hwan Lee, Songwan Jin, Yoon Sik Lee, Tai Hyun Park, Jung Yul Yoo, Dong il Dan Cho

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

This paper reports a physical and chemical surface modification technique to achieve a high tethering efficiency as well as controllability and coordinating bacterial cells. This technique was used to experimentally show multiple spin actuators, using the flagellar motion of AMB-1 bacteria. For physical surface modification, a polydimethylsiloxane (PDMS) pillar array, using a soft-lithography technique, was used. For chemical surface modification, a UV-crosslinked azido benzoic acid (ABA) modified surface was used. A high rate of tethering and adhesion of AMB-1 bacterial cells was achieved on the modified surface, and multiple spin actuation and motoring were observed.

Original languageEnglish
Pages (from-to)269-276
Number of pages8
JournalSensors and Actuators, B: Chemical
Volume123
Issue number1
DOIs
StatePublished - 10 Apr 2007

Bibliographical note

Funding Information:
This research has been supported by the Intelligent Microsystem Center (IMC; http://www.microsystem.re.kr ), which carries out one of the 21st century's Frontier R&D Projects sponsored by the Korea Ministry Of Commerce, Industry and Energy, by a grant of the Korea Health 21 R&D Project, Ministry of Health & Welfare, Republic of Korea (A05-0251-B20604-05N1-00010A), and by the SRC/ERC program of MOST/KOSEF (grant # R11-2000-075-01001-0).

Keywords

  • Bacterial adhesion
  • Flagellar motor
  • Microfluidics
  • Surface engineering

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