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Formation of self-actuating lipid tubes using microfabricated picoliter nozzle array

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4 Author(s)
Masubuchi, M. ; Dept. of Appl. Chem. & Biotechnol., Chiba Univ., Chiba, Japan ; Toyota, T. ; Yamada, M. ; Seki, M.

Microfabricated nozzle-array devices have been newly developed to form multilamellar lipid tubes (MLTs), in which the dried films of phospholipids are swelled through the micronozzles and the fluidic shear-stress is utilized not only to control the morphology of MLTs but also to store deformation energy producing self-actuating MLTs. MLTs were successfully formed with high reproducibility and the diameter was precisely controlled from 2 to 4 μm. In addition, we were able to control the transformation of MLTs from straight tubular shape into different two patterns (yarn ball and helix), and further obtained the unprecedented self-actuating molecular assembly. The self-actuating MLTs would be utilized as models of automatically moving cell membranes, dynamic sensors, and biomimetic machines.

Published in:

Micro Electro Mechanical Systems (MEMS), 2011 IEEE 24th International Conference on

Date of Conference:

23-27 Jan. 2011