Electrical Field Guided Electrospray Deposition for Production of Gradient Particle Patterns

Wei Cheng Yan, Jingwei Xie, Chi Hwa Wang

Research output: Contribution to journalArticle

4 Scopus citations

Abstract

Our previous work demonstrated the uniform particle pattern formation on the substrates using electrical field guided electrospray deposition. In this work, we reported for the first time the fabrication of gradient particle patterns on glass slides using an additional point, line, or bar electrode based on our previous electrospray deposition configuration. We also demonstrated that the polydimethylsiloxane (PDMS) coating could result in the formation of uniform particle patterns instead of gradient particle patterns on glass slides using the same experimental setup. Meanwhile, we investigated the effect of experimental configurations on the gradient particle pattern formation by computational simulation. The simulation results are in line with experimental observations. The formation of gradient particle patterns was ascribed to the gradient of electric field and the corresponding focusing effect. Cell patterns can be formed on the particle patterns deposited on PDMS-coated glass slides. The formed particle patterns hold great promise for high-throughput screening of biomaterial-cell interactions and sensing.

Original languageEnglish (US)
Pages (from-to)18499-18506
Number of pages8
JournalACS Applied Materials and Interfaces
Volume10
Issue number22
DOIs
StatePublished - Jun 6 2018

Keywords

  • cell pattern
  • cell-material interaction
  • electrical field
  • electrospray deposition
  • gradient particle pattern

ASJC Scopus subject areas

  • Materials Science(all)

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