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Lab Chip. 2012 Oct 7;12(19):3821-6. doi: 10.1039/c2lc40483d.

Hydrogel microrobots actuated by optically generated vapour bubbles.

Author information

1
Dept. of Electrical Engineering, University of Hawaii at Manoa, Holmes Hall 483, 2540 Dole Street, Honolulu, USA.

Abstract

A novel hydrogel microrobot made of poly(ethylene glycol) diacrylate (PEGDA) is reported. This disk-shaped microrobot is optothermally actuated by laser-induced bubbles. A pulsed laser is used to smoothly actuate an 80-μm-diameter bubble microrobot at up to 320 μm s(-1). A single microrobot or a pair of microrobots working in cooperation were used to assemble 20-μm-diameter polystyrene beads into different patterns. The microrobots were also used to assemble patterns made of single yeast cells and cell-laden agarose microgels. The patterned yeast cells and cell-laden microgels were cultured, and the cells successfully multiplied.

PMID:
22899225
DOI:
10.1039/c2lc40483d
[Indexed for MEDLINE]

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