Microfluidic-assisted fabrication of flexible and location traceable organo-motor.
In this paper, we fabricate a flexible and location traceable micromotor, called organo-motor, assisted by microfluidic devices and with high throughput. The organo-motors are composed of organic hydrogel material, poly (ethylene glycol) diacrylate (PEGDA), which can provide the flexibility of their structure. For spatial and temporal traceability of the organo-motors under magnetic resonance imaging (MRI), superparamagnetic iron oxide nanoparticles (SPION; Fe3O4) were incorporated into the PEGDA microhydrogels. Furthermore, a thin layer of platinum (Pt) was deposited onto one side of the SPION-PEGDA microhydrogels providing geometrical asymmetry and catalytic propulsion in aqueous fluids containing hydrogen peroxide solution, H2O2. Furthermore, the motion of the organo-motor was controlled by a small external magnet enabled by the presence of SPION in the motor architecture.
Kyoung Duck
KD
Seo
Byung Kook
BK
Kwak
Samuel
S
Sanchez
Dong Sung
DS
Kim
D020100:Hydrogels / Q000737:chemistry*; D008279:Magnetic Resonance Imaging; D058185:Magnetite Nanoparticles / Q000737:chemistry*; D044085:Microfluidics / Q000379:methods*; D055616:Microtechnology / Q000379:methods*; D011092:Polyethylene Glycols / Q000737:chemistry*
D020100:Hydrogels; D058185:Magnetite Nanoparticles; C437167:poly(ethylene glycol)diacrylate; D011092:Polyethylene Glycols