Jump to main content
Jump to site search

Issue 36, 2016
Previous Article Next Article

Bio-syncretic tweezers actuated by microorganisms: modeling and analysis

Author affiliations


Advancements in micro-/nano-technology have led to the development of micro-manipulators. However, some challenges remain; for instance, the efficiency, precision and flexibility of micro-manipulators restrain their applications. This paper proposes a bio-tweezer system to flexibly manipulate micro-objects with bio-actuation via local light-induced high-concentration microorganisms in two different manipulation modes: light-spot induced mode and geometric shape-induced mode. Depending on the shape of micro-objects, either 2-dimensional translation or 1-dimensional rotation can be achieved. Based on the Langevin equation, a mathematical model considering both hydrodynamics and mimicked Brownian motion is proposed to analyze the bio-manipulation performance of the microorganisms; the model was validated by experiments to translate micro-particles in a two-dimensional plane and to rotate a micro-gear structure around its axis. This paper will aid in the development of micro-manipulators and the quantitative understanding of micro-/nano-manipulation actuated by microorganisms.

Graphical abstract: Bio-syncretic tweezers actuated by microorganisms: modeling and analysis

Back to tab navigation

Supplementary files

Publication details

The article was received on 06 May 2016, accepted on 11 Jul 2016 and first published on 11 Jul 2016

Article type: Paper
DOI: 10.1039/C6SM01055E
Citation: Soft Matter, 2016,12, 7485-7494

  •   Request permissions

    Bio-syncretic tweezers actuated by microorganisms: modeling and analysis

    C. Zhang, S. X. Xie, W. X. Wang, N. Xi, Y. C. Wang and L. Q. Liu, Soft Matter, 2016, 12, 7485
    DOI: 10.1039/C6SM01055E

Search articles by author