Surface plasmon contribution to SERS

Dornhaus, Ralf; Benner, Robert E.; Chang, Richard K.; Chabay, Ilan

doi:10.1016/0039-6028(80)90632-9

Cited by 100 publications

(24 citation statements)

References 13 publications

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“…The rest part of the enhancement might arise from the surface plasmon excitation resulting in an additional 10 to 20 times increase as it was found experimentally (see e.g. [14,15])…”

Section: Field In the Cut Of Skin Layermentioning

confidence: 76%

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Edge Condition in Diffraction Theory and Maximum Enhancement of Electromagnetic Field in the Near Zone

Shul’man

1999

phys. stat. sol. (a)

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The equations for electromagnetic fields diffracted by an aperture in a screen are derived containing explicitly charge and current densities as field sources. These sources are shown to be fully defined by the solution of Maxwell equations for the same screen without aperture. The boundary conditions for the diffraction field are reconsidered and the reasons for the violation of Meixner “edge conditions” are pointed out. The results obtained are used to estimate the maximum enhancement of the field in the near‐zone region.

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“…The rest part of the enhancement might arise from the surface plasmon excitation resulting in an additional 10 to 20 times increase as it was found experimentally (see e.g. [14,15])…”

Section: Field In the Cut Of Skin Layermentioning

confidence: 76%

“…(14) and (15) turned out almost to be the same. Assuming l % 100 mmY d s % 50 nm, k 3 ak 2 % 20 we find the field enhancement as high as 4 Â 10 4 and the respective intensity enhancement should be about 1X5 Â 10 9 .…”

mentioning

confidence: 71%

Edge Condition in Diffraction Theory and Maximum Enhancement of Electromagnetic Field in the Near Zone

Shul’man

1999

phys. stat. sol. (a)

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“…According to a normal mode analysis of Raman and IR spectra of vapor pNB radical dianion, 550 cm -1 (b 2 ) and 509 cm -1 (a 1 ) skeletal modes are reported [36]. These modes are also observed at around 530 cm -1 in surface enhanced Raman scattering (SERS) spectra of p-nitrobenzoic acid adsorbed on metal surfaces [37][38][39][40][41][42]. Roth et al [40] indicated that adsorbed p-nitrobenzoic acid on metal surface was coupled to 4,4'-azodibenzoate ( -OOC-Ph-N=N-Ph-COO -) by Ar-ion laser irradiation.…”

Section: Resultsmentioning

confidence: 99%

Fourth-order Raman spectroscopy of adsorbed organic species on TiO2 surface

Nomoto

Ōnishi

2008

Chemical Physics Letters

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We present the fourth-order Raman spectrum of an organic adsorbate on a solid surface. TiO 2 (110) surfaces covered by p-nitrobenzoate (pNB) and trimethyl acetate were observed. In addition to phonon modes of TiO 2 , a weak band at 572 cm-1 was observed for the surface covered by pNB, and assigned as a molecular vibration. The coverage of pNB was estimated to be 13% using XPS. The feasibility of fourth-order Raman spectroscopy is demonstrated in observing organic adsorbates of submonolayer quantity.

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“…3 Although RS has been discovered since the 1930s, it was not widely applied until the breakthrough discovery of surface-enhanced Raman scattering (SERS) in the 1970s, which led to a significant improvement of the signals with an enhancement factor (EF) of up to 10 5-6 when studying pyridine on rough silver electrodes. [4][5][6] The phenomenon of the SERS effect is now widely accepted by the contributions of both physical and chemical mechanisms which are electromagnetic field enhancement (EM) and chemical enhancement (CE), respectively. [7][8][9][10][11] EM field enhancement is due to the formation of localized surface plasma resonance (LSPR) on the nanostructures of metals, such as gold or silver.…”

Section: Introductionmentioning

confidence: 99%

Surface enhanced Raman scattering (SERS) based biomicrofluidics systems for trace protein analysis

Lee

Tseng

2018

Biomicrofluidics

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In recent years, Surface Enhanced Raman Scattering (SERS) has been widely applied to many different areas, including chemical analysis, biomolecule detection, bioagent diagnostics, DNA sequence, and environmental monitor, due to its capabilities of unlabeled fingerprint identification, high sensitivity, and rapid detection. In biomicrofluidic systems, it is also very powerful to integrate SERS based devices with specified micro-fluid flow fields to further focusing/enhancing/multiplexing SERS signals through molecule registration, concentration/accumulation, and allocation. In this review, after a brief introduction of the mechanism of SERS detection on proteins, we will first focus on the effectiveness of different nanostructures for SERS enhancement and light-to-heat conversion in trace protein analysis. Various protein molecule accumulation schemes by either (bio-)chemical or physical ways, such as immuno, electrochemical, Tip-enhanced Raman spectroscopy, and magnetic, will then be reviewed for further SERS signal amplification. The analytical and repeatability/stability issues of SERS detection on proteins will also be brought up for possible solutions. Then, the comparison about various ways employing microfluidic systems to register, concentrate, and enhance the signals of SERS and reduce the background noise by active or passive means to manipulate SERS nanostructures and protein molecules will be elaborated. Finally, we will carry on the discussion on the challenges and opportunities by introducing SERS into biomicrofluidic systems and their potential solutions.

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Surface plasmon contribution to SERS

Cited by 100 publications

References 13 publications

Edge Condition in Diffraction Theory and Maximum Enhancement of Electromagnetic Field in the Near Zone

Edge Condition in Diffraction Theory and Maximum Enhancement of Electromagnetic Field in the Near Zone

Fourth-order Raman spectroscopy of adsorbed organic species on TiO2 surface

Surface enhanced Raman scattering (SERS) based biomicrofluidics systems for trace protein analysis

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