title: 3D SERS Imaging Using Chemically Synthesized Highly Symmetric Nanoporous Silver Microparticles.
abstract: 3D surface-enhanced Raman scattering (SERS) imaging with highly symmetric 3D silver microparticles as a SERS substrate was developed. Although the synthesis method is purely chemical and does not involve lithography, the synthesized nanoporous silver microparticles possess a regular hexapod shape and octahedral symmetry. By using p-aminothiophenol (PATP) as a probe molecule, the 3D enhancement patterns of the particles were shown to be very regular and predictable, resembling the particle shape and exhibiting symmetry. An application to the detection of 3D inhomogeneity in a polymer blend, which relies on the predictable enhancement pattern of the substrate, is presented. 3D SERS imaging using the substrate also provides an improvement in spatial resolution along the Z axis, which is a challenge for Raman measurement in polymers, especially layered polymeric systems.
authors.affiliation: Department of Chemistry, School of Science and Technology, Kwansei Gakuen University, 2-1 Gakuen, Sanda, Hyogo, 669-1337, Japan.
authors.forename: Sanpon
authors.initials: S
authors.lastname: Vantasin
authors.affiliation: Department of Chemistry, School of Science and Technology, Kwansei Gakuen University, 2-1 Gakuen, Sanda, Hyogo, 669-1337, Japan.
authors.forename: Wei
authors.initials: W
authors.lastname: Ji
authors.affiliation: Department of Chemistry, School of Science and Technology, Kwansei Gakuen University, 2-1 Gakuen, Sanda, Hyogo, 669-1337, Japan.
authors.forename: Yoshito
authors.initials: Y
authors.lastname: Tanaka
authors.affiliation: Department of Chemistry, School of Science and Technology, Kwansei Gakuen University, 2-1 Gakuen, Sanda, Hyogo, 669-1337, Japan.
authors.forename: Yasutaka
authors.initials: Y
authors.lastname: Kitahama
authors.affiliation: Department of Chemistry, School of Science and Technology, Kwansei Gakuen University, 2-1 Gakuen, Sanda, Hyogo, 669-1337, Japan.
authors.forename: Mengfan
authors.initials: M
authors.lastname: Wang
authors.affiliation: Department of Chemistry, Faculty of Science, Chulalongkorn University, 254 Phayathai Rd., Pathumwan, Bangkok, 10330, Thailand.
authors.forename: Kanet
authors.initials: K
authors.lastname: Wongravee
authors.affiliation: Department of Chemistry, Faculty of Science, Chulalongkorn University, 254 Phayathai Rd., Pathumwan, Bangkok, 10330, Thailand.
authors.forename: Harnchana
authors.initials: H
authors.lastname: Gatemala
authors.affiliation: Department of Chemistry, Faculty of Science, Chulalongkorn University, 254 Phayathai Rd., Pathumwan, Bangkok, 10330, Thailand.
authors.forename: Sanong
authors.initials: S
authors.lastname: Ekgasit
authors.affiliation: Department of Chemistry, School of Science and Technology, Kwansei Gakuen University, 2-1 Gakuen, Sanda, Hyogo, 669-1337, Japan. ozaki@kwansei.ac.jp.
authors.forename: Yukihiro
authors.initials: Y
authors.lastname: Ozaki
keywords: Raman spectroscopy; microparticles; polymers; silver; surface-enhanced Raman scattering