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Characteristics of surface-enhanced Raman scattering and surface-enhanced fluorescence using a single and a double layer gold nanostructure.
Phys Chem Chem Phys. 2009 Sep 14; 11(34):7484-90.PC

Abstract

This paper reports the characteristics of surface-enhanced Raman scattering (SERS) and surface-enhanced fluorescence (SEF) using a unique SERS-active substrate comprised of a single layer and a double layer of two-dimensional (2D) gold nanostructure. Colloidal gold nanoparticles were immobilized on a glass substrate and a multi-purpose experimental setup was adopted to obtain surface plasmon resonance (SPR), SERS and SEF on a single platform. Inhomogeneous intensity distribution was observed in correlated images of SPR and SERS. Several laser lines were used as excitation sources for further SERS measurements. Higher SERS intensities were observed with longer wavelength excitations at the same spatial position. Fluorescence measurements were carried out using 514 nm line and SEF images were obtained using the same sample. Fluorescence emissions were found to be enhanced in the presence of 2D gold nanostructure. A series of SERS spectra were recorded by conducting ensemble SERS measurements at a periodic interval of 2 microm, crossing bare substrates, the single layer and the double layer of gold nanostructure. The double layer provides higher enhancement in SERS than that of the single layer. Polarization-selective SERS measurements obtained at the single layer and double layer showed a clear difference in their dispersions. SERS intensities of the analytes adsorbed at the single layer were fitted well with cos(4)theta dependence; however, for the double layer, the relationship was quite uncertain.

Authors+Show Affiliations

Department of Chemistry, School of Science and Technology, Kwansei Gakuin University, Gakuen 2-1, Sanda, Hyogo 669-1337, Japan.No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

19690723

Citation

Hossain, Mohammad Kamal, et al. "Characteristics of Surface-enhanced Raman Scattering and Surface-enhanced Fluorescence Using a Single and a Double Layer Gold Nanostructure." Physical Chemistry Chemical Physics : PCCP, vol. 11, no. 34, 2009, pp. 7484-90.
Hossain MK, Huang GG, Kaneko T, et al. Characteristics of surface-enhanced Raman scattering and surface-enhanced fluorescence using a single and a double layer gold nanostructure. Phys Chem Chem Phys. 2009;11(34):7484-90.
Hossain, M. K., Huang, G. G., Kaneko, T., & Ozaki, Y. (2009). Characteristics of surface-enhanced Raman scattering and surface-enhanced fluorescence using a single and a double layer gold nanostructure. Physical Chemistry Chemical Physics : PCCP, 11(34), 7484-90. https://doi.org/10.1039/b903819c
Hossain MK, et al. Characteristics of Surface-enhanced Raman Scattering and Surface-enhanced Fluorescence Using a Single and a Double Layer Gold Nanostructure. Phys Chem Chem Phys. 2009 Sep 14;11(34):7484-90. PubMed PMID: 19690723.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Characteristics of surface-enhanced Raman scattering and surface-enhanced fluorescence using a single and a double layer gold nanostructure. AU - Hossain,Mohammad Kamal, AU - Huang,Genin Gary, AU - Kaneko,Tadaaki, AU - Ozaki,Yukihiro, Y1 - 2009/07/29/ PY - 2009/8/20/entrez PY - 2009/8/20/pubmed PY - 2009/10/20/medline SP - 7484 EP - 90 JF - Physical chemistry chemical physics : PCCP JO - Phys Chem Chem Phys VL - 11 IS - 34 N2 - This paper reports the characteristics of surface-enhanced Raman scattering (SERS) and surface-enhanced fluorescence (SEF) using a unique SERS-active substrate comprised of a single layer and a double layer of two-dimensional (2D) gold nanostructure. Colloidal gold nanoparticles were immobilized on a glass substrate and a multi-purpose experimental setup was adopted to obtain surface plasmon resonance (SPR), SERS and SEF on a single platform. Inhomogeneous intensity distribution was observed in correlated images of SPR and SERS. Several laser lines were used as excitation sources for further SERS measurements. Higher SERS intensities were observed with longer wavelength excitations at the same spatial position. Fluorescence measurements were carried out using 514 nm line and SEF images were obtained using the same sample. Fluorescence emissions were found to be enhanced in the presence of 2D gold nanostructure. A series of SERS spectra were recorded by conducting ensemble SERS measurements at a periodic interval of 2 microm, crossing bare substrates, the single layer and the double layer of gold nanostructure. The double layer provides higher enhancement in SERS than that of the single layer. Polarization-selective SERS measurements obtained at the single layer and double layer showed a clear difference in their dispersions. SERS intensities of the analytes adsorbed at the single layer were fitted well with cos(4)theta dependence; however, for the double layer, the relationship was quite uncertain. SN - 1463-9076 UR - https://www.unboundmedicine.com/medline/citation/19690723/Characteristics_of_surface_enhanced_Raman_scattering_and_surface_enhanced_fluorescence_using_a_single_and_a_double_layer_gold_nanostructure_ L2 - https://doi.org/10.1039/b903819c DB - PRIME DP - Unbound Medicine ER -