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This paper describes a Si nano-pillars array for measuring traction forces of one singular filopodium (100–300 nm in diameter). We fabricated the Si nano-pillar which was 110 nm in diameter and 1.5 µm in length. Fibroblasts were cultured on the Si nano-pillar array. The filopodium of fibroblast adhered to pillar and dragged it. We calculated the traction force from the deflection of the pillar. When...
We show that, in Parylene films fabricated by Parylene-on-liquid-deposition (POLD), the side in contact with the liquid during deposition develops a porous surface. Because of the liquid nature of such a deposition substrate, the molecules of Parylene monomer can diffuse into and polymerize inside the liquid, which is probably the main cause of this effect. We also found that the dimension of the...
We propose a force sensor based on gold nanoparticles, which enable optical detection of force by measurement of the scattering light spectrum. Gold nanoparticles were dispersed on an elastomer sheet. The scattering spectrum changes due to strain were observed to investigate applicability of the sensor to force measurement. The force deforms the elastomer sensor body, and increases the interparticle...
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