alexa Self-assembly of wires in acrylate monomer via nanoparticle dielectrophoresis
Biomedical Sciences

Biomedical Sciences

Journal of Bioengineering & Biomedical Science

Author(s): Ryan P Slopek, James F Gilchrist

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This study investigates morphology and bulk growth rate of wires using dielectrophoresis in non-aqueous suspensions of carbon black nanoparticles dispersed in a diacrylate monomer. Growing anisotropic structures in adhesives to enhance thermal or electrical conductivity is highly desirable for many applications including semiconductor packing. As in aqueous suspensions, the wire growth threshold and growth rate depend on applied voltage and electrode separation. While assembly rate depends less on applied frequency than other field aspects, the morphology of assembled wires transitions from linear to fractal morphology with increasing frequency. Additionally, the wire growth rate in non-aqueous suspensions is temperature dependent and exhibits an upper threshold temperature for wire assembly.

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This article was published in Journal of Physics D: Applied Physics and referenced in Journal of Bioengineering & Biomedical Science

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