Micropatterning of Silica Nanoparticles by Electrospray Deposition through a Stencil Mask

Kazuhiko Higashi, Kazuhiro Uchida, Atsushi Hotta, Koichi Hishida, Norihisa Miki

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

This article describes the local deposition, or micropatterning, of silica nanoparticles (NPs) using an electrospray method with a stencil mask. The proposed technique can be carried out in a single step at room temperature and atmospheric pressure under dry conditions, allowing it to be used with water- or vacuum-sensitive materials, and leading to cost reductions and high throughput. An evaluation of the patterning accuracy using a 20 μm thick mask showed that for patterns with line widths greater than 50 μm, the pattern was reproduced with an accuracy greater than 95%. When silver NPs were preferably deposited on the silica NPs using a modified silver mirror reaction, they were found to exhibit strong surface-enhanced Raman scattering effects. The proposed process is readily applicable to the development of high-performance micro total analysis systems.

Original languageEnglish
Pages (from-to)75-81
Number of pages7
JournalJournal of laboratory automation
Volume19
Issue number1
DOIs
Publication statusPublished - 2014 Feb

Fingerprint

Masks
Silicon Dioxide
Nanoparticles
Silica
Silver
Atmospheric Pressure
Raman Spectrum Analysis
Vacuum
Cost reduction
Linewidth
Atmospheric pressure
Raman scattering
Mirrors
Throughput
Costs and Cost Analysis
Temperature
Water

Keywords

  • electrospray
  • patterning
  • shadow mask
  • silica nanoparticles
  • surface-enhanced Raman

ASJC Scopus subject areas

  • Computer Science Applications
  • Medical Laboratory Technology

Cite this

Micropatterning of Silica Nanoparticles by Electrospray Deposition through a Stencil Mask. / Higashi, Kazuhiko; Uchida, Kazuhiro; Hotta, Atsushi; Hishida, Koichi; Miki, Norihisa.

In: Journal of laboratory automation, Vol. 19, No. 1, 02.2014, p. 75-81.

Research output: Contribution to journalArticle

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