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Title: Type I collagen-templated assembly of silver nanoparticles and their application in surface-enhanced Raman scattering
Authors: Sun, Yujing
Wei, Gang
Song, Yonghai
Wang, L
Sun, Lanlan
Guo, Cunlan
Yang, Tao
Li, Zhuang # ×
Issue Date: Mar-2008
Publisher: Iop publishing ltd
Series Title: Nanotechnology vol:19 issue:11 pages:-
Abstract: Silver nanoparticles (Ag NPs) are one of the active substrates that are employed extensively in surface-enhanced Raman scattering (SERS), and aggregations of Ag NPs play an important role in enhancing the Raman signals. In this paper, we fabricated two kinds of SERS-active substrates utilizing the electrostatic adsorption and superior assembly properties of type I collagen. These were collagen-Ag NP aggregation films and nanoporous Ag films. Two probe molecules, 4-aminothiophenol (4-ATP) and methylene blue (MB), were studied on these substrates. These substrates showed reproducible SERS intensities with relative standard deviations (RSDs) of 8-10% and 11-14%, respectively, while the RSDs of the traditional thick Ag films were 12-28%. Also, the intensities for the 4-ATP spectrum on the collagen-templated nanoporous Ag film were approximately one order higher than those on the DNA-templated Ag film.
ISSN: 0957-4484
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Molecular Imaging and Photonics
× corresponding author
# (joint) last author

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