Electric field and charged molecules mediated self-assembly for electronic devices

Sang Woo Lee, Helen A. McNally, Rashid Bashir

Research output: Chapter in Book/Report/Conference proceedingConference contribution


In this paper we present techniques, utilizing dielectrophoresis and electrohydrodynamics, which can possibly be used for assembling devices suspended in a solution onto a binding site on a substrate. We explored the concepts using micro-scale negatively charged polystyrene beads and rectangular silicon blocks. Dielectrophoretic forces on devices in buffer solutions were examined as a function of frequency of the applied AC signal. The observed results can be explained by taking in account electro-thermal and AC electroosmotic effects. The study described in the paper can be used for placing and assembling micro and nano-electronic devices and objects at specific sites on various substrates, in combination with bio-inspired biological binding techniques such as DNA hybridization, antigen-antibody interactions, and ligand-receptor (avidin-biotin) interactions.

Original languageEnglish (US)
Title of host publicationMolecular Electronics
Number of pages5
StatePublished - Dec 1 2002
Externally publishedYes
Event2002 MRS Fall Meeting - Boston, MA, United States
Duration: Dec 2 2002Dec 6 2002

Publication series

NameMaterials Research Society Symposium Proceedings
ISSN (Print)0272-9172


Other2002 MRS Fall Meeting
CountryUnited States
CityBoston, MA

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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