TY - JOUR
T1 - How to make microscale pores on a self-assembled Ag nanoparticle monolayer
AU - Takekuma, Haruka
AU - Tagomori, Kyohei
AU - Shinohara, Shuhei
AU - Masuda, Shihomi
AU - Xu, Yang
AU - Chan, Yinthai
AU - Wang, Pangpang
AU - Ryuzaki, Soh
AU - Okamoto, Koichi
AU - Tamada, Kaoru
N1 - Funding Information:
This work was supported by the JSPS KAKENHI grant, number 26246005 , and Singapore-Japan joint research project (JSPS/NUS).
Publisher Copyright:
© 2019 Elsevier B.V.
PY - 2019/5
Y1 - 2019/5
N2 - In this short communication, we report a procedure for the fabrication of microscale pores on a rigid self-assembled Ag nanoparticle monolayer with nanothickness. Here, condensed water droplets on a hydrophobic substrate are used as a pore formation template for Langmuir-Schaefer film deposition. The optical properties of the Ag nanoparticle monolayer were influenced by the porous structure, e.g., the localized surface plasmon resonance (LSPR) peak was weakened and broadened for the porous monolayer compared with the homogeneous monolayer, even though the number of particles on the substrate should be the same between them. The pores obtained by this method were robust and could be used as a mask for metal deposition or local fluorescence imaging. This environmentally friendly technique can provide a micropatterned surface with a minimal cytotoxicity, which has high potential for LSPR mediated biosensing and bioimaging applications.
AB - In this short communication, we report a procedure for the fabrication of microscale pores on a rigid self-assembled Ag nanoparticle monolayer with nanothickness. Here, condensed water droplets on a hydrophobic substrate are used as a pore formation template for Langmuir-Schaefer film deposition. The optical properties of the Ag nanoparticle monolayer were influenced by the porous structure, e.g., the localized surface plasmon resonance (LSPR) peak was weakened and broadened for the porous monolayer compared with the homogeneous monolayer, even though the number of particles on the substrate should be the same between them. The pores obtained by this method were robust and could be used as a mask for metal deposition or local fluorescence imaging. This environmentally friendly technique can provide a micropatterned surface with a minimal cytotoxicity, which has high potential for LSPR mediated biosensing and bioimaging applications.
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U2 - 10.1016/j.colcom.2019.100175
DO - 10.1016/j.colcom.2019.100175
M3 - Article
AN - SCOPUS:85062702075
SN - 2215-0382
VL - 30
JO - Colloids and Interface Science Communications
JF - Colloids and Interface Science Communications
M1 - 100175
ER -