Abstract
A soft surface-enhanced Raman scattering (SERS) substrate was fabricated based on a three-dimensional (3D) structure of biocompatible end-tethered poly(L-lysine) ("t-PLL") with a brushlike configuration conjugated with silver nanoparticles (Ag NPs) (Ag NP-t-PLL film). The conjugation procedures were carefully adjusted to generate the films with different interval widths (W) between Ag NPs and diameters (D) of Ag NPs. The resulting film was then characterized by zeta potential, CD spectropolarimeter, and scanning electron microscopy. Furthermore, the studies of SERS enhancements using Ag NP-t-PLL film as a substrate were performed. The significant increases of SERS enhancements have been obtained as W/D was decreased from 0.9 to 0.2. Our results not only afford a facile fabrication of a 3D soft substrate for SERS with high sensitivity and biocompatibility but also offer great potentials for the development of new biosensors.
| Original language | English |
|---|---|
| Pages (from-to) | 13498-13504 |
| Number of pages | 7 |
| Journal | Journal of Physical Chemistry C |
| Volume | 113 |
| Issue number | 31 |
| DOIs | |
| Publication status | Published - 2009 Aug 6 |
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ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Energy(all)
- Physical and Theoretical Chemistry
- Surfaces, Coatings and Films
Cite this
Silver-nanoparticle-conjugated polypeptide brushes for surface-enhanced raman scattering. / Wang, Di Yan; Teng, Tzu Shen; Wu, Yi Chou; Lee, Yi Cheng; Chen, Kuei Hsien; Chen, Chung Hsuan; Chang, Ying Chih; Chen, Chia Chun.
In: Journal of Physical Chemistry C, Vol. 113, No. 31, 06.08.2009, p. 13498-13504.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Silver-nanoparticle-conjugated polypeptide brushes for surface-enhanced raman scattering
AU - Wang, Di Yan
AU - Teng, Tzu Shen
AU - Wu, Yi Chou
AU - Lee, Yi Cheng
AU - Chen, Kuei Hsien
AU - Chen, Chung Hsuan
AU - Chang, Ying Chih
AU - Chen, Chia Chun
PY - 2009/8/6
Y1 - 2009/8/6
N2 - A soft surface-enhanced Raman scattering (SERS) substrate was fabricated based on a three-dimensional (3D) structure of biocompatible end-tethered poly(L-lysine) ("t-PLL") with a brushlike configuration conjugated with silver nanoparticles (Ag NPs) (Ag NP-t-PLL film). The conjugation procedures were carefully adjusted to generate the films with different interval widths (W) between Ag NPs and diameters (D) of Ag NPs. The resulting film was then characterized by zeta potential, CD spectropolarimeter, and scanning electron microscopy. Furthermore, the studies of SERS enhancements using Ag NP-t-PLL film as a substrate were performed. The significant increases of SERS enhancements have been obtained as W/D was decreased from 0.9 to 0.2. Our results not only afford a facile fabrication of a 3D soft substrate for SERS with high sensitivity and biocompatibility but also offer great potentials for the development of new biosensors.
AB - A soft surface-enhanced Raman scattering (SERS) substrate was fabricated based on a three-dimensional (3D) structure of biocompatible end-tethered poly(L-lysine) ("t-PLL") with a brushlike configuration conjugated with silver nanoparticles (Ag NPs) (Ag NP-t-PLL film). The conjugation procedures were carefully adjusted to generate the films with different interval widths (W) between Ag NPs and diameters (D) of Ag NPs. The resulting film was then characterized by zeta potential, CD spectropolarimeter, and scanning electron microscopy. Furthermore, the studies of SERS enhancements using Ag NP-t-PLL film as a substrate were performed. The significant increases of SERS enhancements have been obtained as W/D was decreased from 0.9 to 0.2. Our results not only afford a facile fabrication of a 3D soft substrate for SERS with high sensitivity and biocompatibility but also offer great potentials for the development of new biosensors.
UR - http://www.scopus.com/inward/record.url?scp=68749095278&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=68749095278&partnerID=8YFLogxK
U2 - 10.1021/jp903664u
DO - 10.1021/jp903664u
M3 - Article
AN - SCOPUS:68749095278
VL - 113
SP - 13498
EP - 13504
JO - Journal of Physical Chemistry C
JF - Journal of Physical Chemistry C
SN - 1932-7447
IS - 31
ER -