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Single nanowire on a film as an efficient SERS-active platform.
J Am Chem Soc. 2009 Jan 21; 131(2):758-62.JA

Abstract

Fabricating well-defined and highly reproducible platforms for surface-enhanced Raman scattering (SERS) is very important in developing practical SERS sensors. We report a novel SERS platform composed of a single metallic nanowire (NW) on a metallic film. Optical excitation of this novel sandwich nanostructure provides a line of SERS hot spots (a SERS hot line) at the gap between the NW and the film. This single nanowire on a film (SNOF) architecture can be easily fabricated, and the position of hot spots can be conveniently located in situ by using an optical microscope during the SERS measurement. We show that high-quality SERS spectra from benzenethiol, brilliant cresyl blue, and single-stranded DNA can be obtained on a SNOF with reliable reproducibility, good time stability, and excellent sensitivity, and thus, SNOFs can potentially be employed as effective SERS sensors for label-free biomolecule detection. We also report detailed studies of polarization- and material-dependent SERS enhancement of the SNOF structure.

Authors+Show Affiliations

Department of Chemistry, KAIST, Daejeon 305-701, Korea.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

19099471

Citation

Yoon, Ilsun, et al. "Single Nanowire On a Film as an Efficient SERS-active Platform." Journal of the American Chemical Society, vol. 131, no. 2, 2009, pp. 758-62.
Yoon I, Kang T, Choi W, et al. Single nanowire on a film as an efficient SERS-active platform. J Am Chem Soc. 2009;131(2):758-62.
Yoon, I., Kang, T., Choi, W., Kim, J., Yoo, Y., Joo, S. W., Park, Q. H., Ihee, H., & Kim, B. (2009). Single nanowire on a film as an efficient SERS-active platform. Journal of the American Chemical Society, 131(2), 758-62. https://doi.org/10.1021/ja807455s
Yoon I, et al. Single Nanowire On a Film as an Efficient SERS-active Platform. J Am Chem Soc. 2009 Jan 21;131(2):758-62. PubMed PMID: 19099471.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Single nanowire on a film as an efficient SERS-active platform. AU - Yoon,Ilsun, AU - Kang,Taejoon, AU - Choi,Wonjun, AU - Kim,Jangbae, AU - Yoo,Youngdong, AU - Joo,Sang-Woo, AU - Park,Q-Han, AU - Ihee,Hyotcherl, AU - Kim,Bongsoo, PY - 2008/12/23/entrez PY - 2008/12/23/pubmed PY - 2009/3/26/medline SP - 758 EP - 62 JF - Journal of the American Chemical Society JO - J Am Chem Soc VL - 131 IS - 2 N2 - Fabricating well-defined and highly reproducible platforms for surface-enhanced Raman scattering (SERS) is very important in developing practical SERS sensors. We report a novel SERS platform composed of a single metallic nanowire (NW) on a metallic film. Optical excitation of this novel sandwich nanostructure provides a line of SERS hot spots (a SERS hot line) at the gap between the NW and the film. This single nanowire on a film (SNOF) architecture can be easily fabricated, and the position of hot spots can be conveniently located in situ by using an optical microscope during the SERS measurement. We show that high-quality SERS spectra from benzenethiol, brilliant cresyl blue, and single-stranded DNA can be obtained on a SNOF with reliable reproducibility, good time stability, and excellent sensitivity, and thus, SNOFs can potentially be employed as effective SERS sensors for label-free biomolecule detection. We also report detailed studies of polarization- and material-dependent SERS enhancement of the SNOF structure. SN - 1520-5126 UR - https://www.unboundmedicine.com/medline/citation/19099471/Single_nanowire_on_a_film_as_an_efficient_SERS_active_platform_ L2 - https://doi.org/10.1021/ja807455s DB - PRIME DP - Unbound Medicine ER -