TY - JOUR
T1 - Micropatterning of Silica Nanoparticles by Electrospray Deposition through a Stencil Mask
AU - Higashi, Kazuhiko
AU - Uchida, Kazuhiro
AU - Hotta, Atsushi
AU - Hishida, Koichi
AU - Miki, Norihisa
PY - 2014/2
Y1 - 2014/2
N2 - 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.
AB - 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.
KW - electrospray
KW - patterning
KW - shadow mask
KW - silica nanoparticles
KW - surface-enhanced Raman
UR - http://www.scopus.com/inward/record.url?scp=84887539861&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84887539861&partnerID=8YFLogxK
U2 - 10.1177/2211068213495205
DO - 10.1177/2211068213495205
M3 - Article
C2 - 23821680
AN - SCOPUS:84887539861
VL - 19
SP - 75
EP - 81
JO - JALA - Journal of the Association for Laboratory Automation
JF - JALA - Journal of the Association for Laboratory Automation
SN - 1535-5535
IS - 1
ER -