9 research outputs found
研究速報 : Nano-structures fabrication technique for biological applications
特集2 日仏マイクロメカトロニクス国際共同研究組織(LIMMS
Two-Dimensionally Arrayed Double-Layer Electrode Device Which Enables Reliable and High-Throughput Electrorotation
International audienc
Detection of Micro-Beads by Impedance Cytometry - Towards a Wholly Integrated Electronic Device for Biological Cells Applications
International audienc
Compressively-Stressed Test Structures for Opaque Micro-Structures Releasing Visualization
International audienc
Self-Deformable Flexible MEMS Tweezer Composed of Poly(Vinylidene Fluoride)/Ionic Liquid Gel for Electrical Measurements and Soft Gripping
International audienceWe present a self-deformable flexible tweezer capable of simultaneous mechanical handling and electrical measurements. The tweezer has a soft cantilever with the dimensions 2 mm ×8 mm × 75- 100 μm , and undergoes self-deformation. The device is shown to be successfully capable of detecting electrical signals by gently touching the surface and grasping a spherical bead. The device demonstrated the lowest working voltage (1.5 VDC), force suitable for soft gripping, and curvature radius of 2 mm, that was one of the smallest values compared to that of similar state-of-the-art devices. The device was fabricated using a unique and highly reliable process that was specifically developed to produce flexible cantilevers with novel ionic polymer-metal composites (IPMCs). The materials used were poly(vinylidene fluoride-co-trifluoroethylene) (PVDF-TrFE) and an ionic liquid (IL). The PVDF-TrFE/IL gel was prepared using acetone as the solvent and the gel was coated with silver nanowires as the electrodes. The actuator with a length of 8 mm and containing 50 wt% IL yielded the largest bending displacement of 7 mm and minimum curvature radius of 2 mm at 1.5 VDC. [2022-0026