In JoVE (1)
Other Publications (1)
Articles by Rouhollah Dermanaki-Farahani in JoVE
Manufacturing of Three-dimensionally Microstructured Nanocomposites through Microfluidic Infiltration Rouhollah Dermanaki-Farahani1, Louis Laberge Lebel1, Daniel Therriault1 1Center for Applied Research on Polymers and Composites (CREPEC), Mechanical Engineering Department, École Polytechnique de Montréal Three-dimensional (3D) microstructured composite beams are fabricated through the directed and localized infiltration of nanocomposites into 3D porous microfluidic networks. The flexibility of this manufacturing method enables the utilization of different thermosetting materials and nanofillers in order to achieve a variety of functional 3D reinforced nanocomposite macroscopic products.
Other articles by Rouhollah Dermanaki-Farahani on PubMed
Direct-write Fabrication of Freestanding Nanocomposite Strain Sensors Nanotechnology. Mar, 2012 | Pubmed ID: 22293315 This paper deals with the design and microfabrication of two three-dimensional (3D) freestanding patterned strain sensors made of single-walled carbon nanotube (SWCNT) nanocomposites with the ultraviolet-assisted direct-write (UV-DW) technique. The first sensor consisted of three nanocomposite microfibers suspended between two rectangular epoxy pads. The flexibility of the UV-DW technique enables the sensor and its housing to be manufactured in one monolithic structure. The second sensor was composed of a nanocomposite network consisting of four parallel microsprings, which demonstrates the high capability of the technique when compared to conventional photolithographic technologies. The performances of the sensors were assessed under tension and compression, respectively. The sensors' sensitivities were evaluated by correlating their measured resistivities to the applied displacements/strains. Electrical conductivity measurements revealed that the manufactured sensors are highly sensitive to small mechanical disturbances, especially for lower nanotube loadings when compared to traditional metallic or nanocomposite films. The present manufacturing method offers a new perspective for manufacturing highly sensitive 3D freestanding microstructured sensors.