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Journal articles on the topic 'Surface Enhanced Resonance Raman Spectroscopy'

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Author: Grafiati

Published: 10 December 2022

Last updated: 6 September 2023

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1

Raser, Lydia N., Stephen V. Kolaczkowski, and Therese M. Cotton. "RESONANCE RAMAN AND SURFACE-ENHANCED RESONANCE RAMAN SPECTROSCOPY OF HYPERICIN." Photochemistry and Photobiology 56, no. 2 (August 1992): 157–62. http://dx.doi.org/10.1111/j.1751-1097.1992.tb02142.x.

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2

Zhao, Jing, Jon A. Dieringer, Xiaoyu Zhang, George C. Schatz, and Richard P. Van Duyne. "Wavelength-Scanned Surface-Enhanced Resonance Raman Excitation Spectroscopy." Journal of Physical Chemistry C 112, no. 49 (November 14, 2008): 19302–10. http://dx.doi.org/10.1021/jp807837t.

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3

Virdee, H. R., and R. E. Hester. "Surface-Enhanced Raman Spectroscopy of Thionine-modified Gold Electrodes." Laser Chemistry 9, no. 4-6 (January 1, 1988): 401–16. http://dx.doi.org/10.1155/lc.9.401.

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Surface enhanced Raman (SER) and resonance Raman (SERR) techniques have been used in situ to investigate thionine-modified gold electrodes. New surface roughening procedures for gold electrodes have resulted in an order of magnitude increase in the Raman signals. As a result of this, Raman spectra from leucothionine have been observed for the first time. The surface Raman spectra of both thionine and leucothionine are essentially unchanged over the pH range from 1.3 to 7 but both show major changes at pH 10. This behaviour has been rèlated to changes in the absorption spectrum of thionine at pH 1.0 where the compound is believed to exist as thionine hydroxide. At pH 1.3 and 7 the Raman signals from thionine arise from a combination of surface enhancement and resonance enhancement processes, whereas signals from leucothionine arise solely from surface enhancement. At pH 10 surface enhancement processes give rise to Raman intensity for both thionine and leucothionine.

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4

Thuy, Pham Thi, Vo Cao Minh, Vo Quang Mai, Nguyen Tri Tuan, Pham Van Tuan, Hoang Ba Cuong, and Nguyen Xuan Sang. "Local Surface Plasmonic Resonance, Surface-Enhanced Raman Scattering, Photoluminescence, and Photocatalytic Activity of Hydrothermal Titanate Nanotubes Coated with Ag Nanoparticles." Journal of Nanomaterials 2021 (December 30, 2021): 1–9. http://dx.doi.org/10.1155/2021/3806691.

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In this work, we successfully fabricated homogeneous hydrothermal titanate nanotubes (TNTs) coated with Ag nanoparticles (NPs) and elucidated the role of Ag NPs on local surface plasmonic resonance, surface-enhanced Raman scattering, and the enhanced photocatalytic activity of TNT/Ag nanocomposite. The results showed that the photodegradation process reached equilibrium in just ~5 min for the TNT/Ag nanocomposite, which was much shorter than that of the TNT sample (~90 min). TEM micrographs showed that Ag NPs were well dispersed on the walls of the nanotubes. XRD patterns and Raman spectra indicated that the TNTs were in the monoclinic structure of H2Ti3O7. Furthermore, Raman active modes of the TNTs were significantly enhanced in the TNT/Ag sample, which was attributed to surface-enhanced Raman spectroscopy. The enhanced photocatalytic activity of the TNT/Ag sample was explained by UV-vis diffuse reflectance spectroscopy and photoluminescence emission spectroscopy, which showed local surface plasmonic resonance-induced visible light absorption enhancement and effective charge separation, respectively.

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5

McCabe, Ailie, W. Ewen Smith, Grant Thomson, David Batchelder, Richard Lacey, Geoffrey Ashcroft, and Brian F. Foulger. "Remote Detection Using Surface-Enhanced Resonance Raman Scattering." Applied Spectroscopy 56, no. 7 (July 2002): 820–26. http://dx.doi.org/10.1366/000370202760171473.

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Surface-enhanced resonance Raman scattering (SERRS) provides intense Raman signals that are shown here to be stable in a target and to be detectable at least 10 meters from the spectrometer. The results indicate that SERRS labeling of objects and their detection at a distance with a low-power laser is feasible. Rhodamine and a dye specifically designed to give good surface adhesion, [4(5′-azobenzotriazyl)-3,5-dimethoxyphenylamine] (ABT DMOPA), were adsorbed onto silver particles and the particles dispersed in poly(vinyl acetate) (PVA) and varnish. SERRS from rhodamine was not detected from colloid dispersed either in PVA or varnish, presumably due to displacement of the dye from the silver surface. ABT DMOPA gave good SERRS. Maps of the SERRS intensity of films indicated variability of 10–20% if ultrasound was applied to improve dispersion during mixing. Scattering performance was evaluated using a system with the sample held up to one meter from the probe head. The intensity of the scattering from samples kept in the dark showed little change over a period of up to one year. However, when the samples were left in direct sunlight, the scattering intensity dropped significantly over the same period but could still be determined after eight months. An optical system was designed and constructed to detect scattering at longer distances. It consisted of a probe head based on a telephoto or CCTV lens that was fiber-optically coupled to the spectrometer. Effective detection of SERRS was obtained 10 m from the spectrometer using 3.6 mW of power and a 20 s accumulation time.

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6

Bizzarri, Anna Rita, and Salvatore Cannistraro. "Surface-Enhanced Resonance Raman Spectroscopy Signals from Single Myoglobin Molecules." Applied Spectroscopy 56, no. 12 (December 2002): 1531–37. http://dx.doi.org/10.1366/000370202321115977.

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The extremely large cross-section available from metallic surface enhancement has been exploited to investigate the Raman spectrum of heme myoglobin adsorbed on silver colloidal nanoparticles at very low concentrations. The study has been performed on particles both in solution and immobilized onto a polymer-coated glass surface. In both the cases, we have observed striking temporal fluctuations in the surface-enhanced resonance Raman spectroscopy (SERRS) spectra collected at short times. A statistical analysis of the temporal intensity fluctuations and of the associated correlations of the Raman signals has allowed us to verify that the single molecule limit is approached. The possible connections of these fluctuations with the entanglement of the biomolecule within the local minima of its rough energy landscape is discussed.

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7

Kowalchyk, Will K., Kevin L. Davis, and Michael D. Morris. "Surface-enhanced resonance Raman spectroscopy of iron-dopamine complexes." Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 51, no. 1 (January 1995): 145–51. http://dx.doi.org/10.1016/0584-8539(94)00153-3.

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8

Francioso, O., S. Sánchez-Cortés, V. Tugnoli, C. Ciavatta, and C. Gessa. "Characterization of Peat Fulvic Acid Fractions by Means of FT-IR, SERS, and 1H, 13C NMR Spectroscopy." Applied Spectroscopy 52, no. 2 (February 1998): 270–77. http://dx.doi.org/10.1366/0003702981943347.

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Fourier transform infrared (FT-IR), surface-enhanced Raman spectroscopy (SERS), and nuclear magnetic resonance (NMR) (1H and 13C) have been applied to the characterization of un fractionated and fractionated fulvic acids extracted from an Irish peat. Raman study of these compounds is possible on rough metallic surfaces, which enhance the Raman signal and quench the high fluorescence. The application of these spectroscopic techniques has provided important structural information concerning the aromaticity and the carboxylate and carbohydrate group contents in each fraction. In addition, a SERS study at different pH levels has revealed interesting interfacial behavior of these components based on electric charge and conformational changes.

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9

Xue, Gi, Jian Dong, and Mingsheng Zhang. "Surface-Enhanced Raman Scattering (SERS) and Surface-Enhanced Resonance Raman Scattering (SERRS) on HNO3-Roughened Copper Foil." Applied Spectroscopy 45, no. 5 (June 1991): 756–59. http://dx.doi.org/10.1366/0003702914336570.

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10

Yu, Xuechao, Jin Tao, Youde Shen, Guozhen Liang, Tao Liu, Yongzhe Zhang, and Qi Jie Wang. "A metal–dielectric–graphene sandwich for surface enhanced Raman spectroscopy." Nanoscale 6, no. 17 (2014): 9925–29. http://dx.doi.org/10.1039/c4nr02301c.

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The Raman intensity of Rhodamine B (RhB) is enhanced by inserting a thin high κ dielectric layer which reduces the surface plasmon damping at the gold–graphene interface. The results indicate that the Raman intensity increases sharply by plasmonic resonance enhancement while maintaining efficient fluorescence quenching with optimized dielectric layer thickness.

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11

Hildebrandt, Peter, and Manfred Stockburger. "Surface enhanced resonance Raman study on fluorescein dyes." Journal of Raman Spectroscopy 17, no. 1 (February 1986): 55–58. http://dx.doi.org/10.1002/jrs.1250170112.

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12

Wang, Jingang, Wenhua Qiao, and Xijiao Mu. "Au Tip-Enhanced Raman Spectroscopy for Catalysis." Applied Sciences 8, no. 11 (October 23, 2018): 2026. http://dx.doi.org/10.3390/app8112026.

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Plasmon-driven chemical reactions have been a prospective field for surface plasmon resonance and tip-enhanced Raman scattering. In this review, the principles of tip-enhanced Raman spectroscopy (TERS) are first introduced. Following this, the use of Au TERS for plasmon-driven synthesis catalysis is introduced. Finally, the use of Au TERS for catalysis of dissociation reactions is discussed. This review can provide a deeper understanding of Au TERS for plasmon-driven catalysis.

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13

Mogilevsky, Gregory, Laura Borland, Mark Brickhouse, and Augustus W. Fountain III. "Raman Spectroscopy for Homeland Security Applications." International Journal of Spectroscopy 2012 (June 6, 2012): 1–12. http://dx.doi.org/10.1155/2012/808079.

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Raman spectroscopy is an analytical technique with vast applications in the homeland security and defense arenas. The Raman effect is defined by the inelastic interaction of the incident laser with the analyte molecule’s vibrational modes, which can be exploited to detect and identify chemicals in various environments and for the detection of hazards in the field, at checkpoints, or in a forensic laboratory with no contact with the substance. A major source of error that overwhelms the Raman signal is fluorescence caused by the background and the sample matrix. Novel methods are being developed to enhance the Raman signal’s sensitivity and to reduce the effects of fluorescence by altering how the hazard material interacts with its environment and the incident laser. Basic Raman techniques applicable to homeland security applications include conventional (off-resonance) Raman spectroscopy, surface-enhanced Raman spectroscopy (SERS), resonance Raman spectroscopy, and spatially or temporally offset Raman spectroscopy (SORS and TORS). Additional emerging Raman techniques, including remote Raman detection, Raman imaging, and Heterodyne imaging, are being developed to further enhance the Raman signal, mitigate fluorescence effects, and monitor hazards at a distance for use in homeland security and defense applications.

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14

Douglas, Phil, Karen M. McCarney, Duncan Graham, and W. Ewen Smith. "Protein–nanoparticle labelling probed by surface enhanced resonance Raman spectroscopy." Analyst 132, no. 9 (2007): 865. http://dx.doi.org/10.1039/b707660f.

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15

Zeng-Hui, Zhou, Liu Li, Wang Gui-Ying, and Xu Zhi-Zhan. "Surface-enhanced resonance Raman scattering spectroscopy of single R6G molecules." Chinese Physics 15, no. 1 (January 2006): 126–31. http://dx.doi.org/10.1088/1009-1963/15/1/020.

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16

Banaee, Mohamad G., and Kenneth B. Crozier. "Mixed Dimer Double-Resonance Substrates for Surface-Enhanced Raman Spectroscopy." ACS Nano 5, no. 1 (December 16, 2010): 307–14. http://dx.doi.org/10.1021/nn102726j.

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17

Ellahi, Saira B., and Ronald E. Hester. "Waveguide Surface-Enhanced Resonance Raman Spectroscopy of Ru(bpy)32+." Analytical Chemistry 67, no. 1 (January 1995): 108–13. http://dx.doi.org/10.1021/ac00097a018.

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18

Syamala Kiran, Manikantan, Tamitake Itoh, Ken-ichi Yoshida, Nagako Kawashima, Vasudevanpillai Biju, and Mitsuru Ishikawa. "Selective Detection of HbA1c Using Surface Enhanced Resonance Raman Spectroscopy." Analytical Chemistry 82, no. 4 (February 15, 2010): 1342–48. http://dx.doi.org/10.1021/ac902364h.

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19

Baranov, A. V., Ya S. Bobovich, and V. I. Petrov. "Surface-enhanced resonance hyper-Raman (SERHR) spectroscopy of photochromatic molecules." Journal of Raman Spectroscopy 24, no. 10 (October 1993): 695–97. http://dx.doi.org/10.1002/jrs.1250241010.

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20

Abu-Hatab, Nahla A., Joshy F. John, Jenny M. Oran, and Michael J. Sepaniak. "Multiplexed Microfluidic Surface-Enhanced Raman Spectroscopy." Applied Spectroscopy 61, no. 10 (October 2007): 1116–22. http://dx.doi.org/10.1366/000370207782217842.

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Over the past few decades, surface-enhanced Raman spectroscopy (SERS) has garnered respect as an analytical technique with significant chemical and biological applications. SERS is important for the life sciences because it can provide trace level detection, a high level of structural information, and enhanced chemical detection. However, creating and successfully implementing a sensitive, reproducible, and robust SERS active substrate continues to be a challenging task. Herein, we report a novel method for SERS that is based upon using multiplexed microfluidics (MMFs) in a polydimethylsiloxane platform to perform parallel, high throughput, and sensitive detection/identification of single or various analytes under easily manipulated conditions. A facile passive pumping method is used to deliver Ag colloids and analytes into the channels where SERS measurements are done under nondestructive flowing conditions. With this approach, SERS signal reproducibility is found to be better than 7%. Utilizing a very high numerical aperture microscope objective with a confocal-based Raman spectrometer, high sensitivity is achieved. Moreover, the long working distance of this objective coupled with an appreciable channel depth obviates normal alignment issues expected with translational multiplexing. Rapid evaluation of the effects of anion activators and the type of colloid employed on SERS performance are used to demonstrate the efficiency and applicability of the MMF approach. SERS spectra of various pesticides were also obtained. Calibration curves of crystal violet (non-resonant enhanced) and Mitoxantrone (resonant enhanced) were generated, and the major SERS bands of these analytes were observable down to concentrations in the low nM and sub-pM ranges, respectively. While conventional random morphology colloids were used in most of these studies, unique cubic nanoparticles of silver were synthesized with different sizes and studied using visible wavelength optical extinction spectrometry, scanning electron microscopy, and the MMF-SERS approach.

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21

Meyer, Stefan A., Eric C. Le Ru, and Pablo G. Etchegoin. "Combining Surface Plasmon Resonance (SPR) Spectroscopy with Surface-Enhanced Raman Scattering (SERS)." Analytical Chemistry 83, no. 6 (March 15, 2011): 2337–44. http://dx.doi.org/10.1021/ac103273r.

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22

Aroca, R. F., C. J. L. Constantino, and James Duff. "Surface-Enhanced Raman Scattering and Imaging of Langmuir—Blodgett Monolayers of Bis(Phenethylimido)perylene on Silver Island Films." Applied Spectroscopy 54, no. 8 (August 2000): 1120–25. http://dx.doi.org/10.1366/0003702001950913.

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The optical spectra of bis(phenethylimido)perylene (PhPTCD) are discussed. Surface-pressure area isotherms of floating Langmuir monomolecular layers have been obtained, and Langmuir-Blodgett (LB) molecular monolayers of the material have been fabricated on silver island substrates for surface-enhanced vibrational studies. The electronic absorption and emission spectra of solutions and thin solid films are described. The vibrational spectra, infrared and Raman for the bulk, and the surface-enhanced Raman (SERS) and resonance Raman scattering (SERRS) spectra of LB monolayers have been obtained. Surface-enhanced fluorescence (SEF) for LB films is also demonstrated. Given the unique properties of the LB coated silver surfaces, the mapping of the SERS/SERRS signal and global Raman images, at a particular vibrational wavenumber, were obtained by using the 780 and 514.5 nm laser lines. The images give a visual picture of the variation of the SERRS and SERS signal intensity on the rough metal surface.

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23

Cunningham, Dale, Rachael E. Littleford, W. Ewen Smith, Duncan Graham, Mike Towrie, and Pavel Matousek. "Surface enhanced resonance Raman scattering detection by fluorimeter." Analyst 130, no. 4 (2005): 472. http://dx.doi.org/10.1039/b418989b.

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24

Yang, Huan, Ben Q. Li, Xinbing Jiang, and Jinyou Shao. "Hybrid nanostructure of SiO2@Si with Au-nanoparticles for surface enhanced Raman spectroscopy." Nanoscale 11, no. 28 (2019): 13484–93. http://dx.doi.org/10.1039/c9nr03813b.

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25

Guo, Iris W., Idah C. Pekcevik, Michael C. P. Wang, Brandy K. Pilapil, and Byron D. Gates. "Colloidal core–shell materials with ‘spiky’ surfaces assembled from gold nanorods." Chem. Commun. 50, no. 60 (2014): 8157–60. http://dx.doi.org/10.1039/c4cc02410a.

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Colloidal particles are prepared with a ‘spiky’ surface topography achieved by the self-assembly of gold nanorods onto the surfaces of spherical polystyrene cores. These core–shell assemblies exhibit surface plasmon resonance properties and serve as a platform for surface-enhanced Raman spectroscopy measurements.

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26

Haes, Amanda J., Christy L. Haynes, Adam D. McFarland, George C. Schatz, Richard P. Van Duyne, and Shengli Zou. "Plasmonic Materials for Surface-Enhanced Sensing and Spectroscopy." MRS Bulletin 30, no. 5 (May 2005): 368–75. http://dx.doi.org/10.1557/mrs2005.100.

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AbstractLocalized surface plasmon resonance (LSPR) excitation in silver and gold nanoparticles produces strong extinction and scattering spectra that in recent years have been used for important sensing and spectroscopy applications. This article describes the fabrication, characterization, and computational electrodynamics of plasmonic materials that take advantage of this concept.Two applications of these plasmonic materials are presented: (1) the development of an ultrasensitive nanoscale optical biosensor based on LSPR wavelength-shift spectroscopy and (2) the use of plasmon-sampled and wavelength-scanned surface-enhanced Raman excitation spectroscopy (SERES) to provide new insight into the electromagnetic-field enhancement mechanism.

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27

Wang, Jingang, Xinxin Wang, and Xijiao Mu. "Plasmonic Photocatalysts Monitored by Tip-Enhanced Raman Spectroscopy." Catalysts 9, no. 2 (January 22, 2019): 109. http://dx.doi.org/10.3390/catal9020109.

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In this review, we first prove the resonance dissociation process by using time-dependent measurements of tip-enhanced resonance Raman spectroscopy (TERRS) under high vacuum conditions. Second, we show how to use thermal electrons to dissociate Malachite Green (MG) and the hot electrons in the nanogap of the high vacuum tip-enhanced Raman spectroscopy (TERS) device that are generated by plasma decay. Malachite Green is excited by resonance and adsorbed on the Ag and Au surfaces. Finally, we describe real-world and real-time observations of plasmon-induced general chemical reactions of individual molecules.

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28

Serebrennikova, Kseniya V., Anna N. Berlina, Dmitriy V. Sotnikov, Anatoly V. Zherdev, and Boris B. Dzantiev. "Raman Scattering-Based Biosensing: New Prospects and Opportunities." Biosensors 11, no. 12 (December 13, 2021): 512. http://dx.doi.org/10.3390/bios11120512.

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The growing interest in the development of new platforms for the application of Raman spectroscopy techniques in biosensor technologies is driven by the potential of these techniques in identifying chemical compounds, as well as structural and functional features of biomolecules. The effect of Raman scattering is a result of inelastic light scattering processes, which lead to the emission of scattered light with a different frequency associated with molecular vibrations of the identified molecule. Spontaneous Raman scattering is usually weak, resulting in complexities with the separation of weak inelastically scattered light and intense Rayleigh scattering. These limitations have led to the development of various techniques for enhancing Raman scattering, including resonance Raman spectroscopy (RRS) and nonlinear Raman spectroscopy (coherent anti-Stokes Raman spectroscopy and stimulated Raman spectroscopy). Furthermore, the discovery of the phenomenon of enhanced Raman scattering near metallic nanostructures gave impetus to the development of the surface-enhanced Raman spectroscopy (SERS) as well as its combination with resonance Raman spectroscopy and nonlinear Raman spectroscopic techniques. The combination of nonlinear and resonant optical effects with metal substrates or nanoparticles can be used to increase speed, spatial resolution, and signal amplification in Raman spectroscopy, making these techniques promising for the analysis and characterization of biological samples. This review provides the main provisions of the listed Raman techniques and the advantages and limitations present when applied to life sciences research. The recent advances in SERS and SERS-combined techniques are summarized, such as SERRS, SE-CARS, and SE-SRS for bioimaging and the biosensing of molecules, which form the basis for potential future applications of these techniques in biosensor technology. In addition, an overview is given of the main tools for success in the development of biosensors based on Raman spectroscopy techniques, which can be achieved by choosing one or a combination of the following approaches: (i) fabrication of a reproducible SERS substrate, (ii) synthesis of the SERS nanotag, and (iii) implementation of new platforms for on-site testing.

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29

Nicolson, Fay, Lauren E. Jamieson, Samuel Mabbott, Konstantinos Plakas, Neil C. Shand, Michael R. Detty, Duncan Graham, and Karen Faulds. "Surface enhanced resonance Raman spectroscopy (SERRS) for probing through plastic and tissue barriers using a handheld spectrometer." Analyst 143, no. 24 (2018): 5965–73. http://dx.doi.org/10.1039/c8an01249k.

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30

Habuchi, Satoshi, Mircea Cotlet, Roel Gronheid, Gunter Dirix, Jan Michiels, Jos Vanderleyden, Frans C. De Schryver, and Johan Hofkens. "Single-Molecule Surface Enhanced Resonance Raman Spectroscopy of the Enhanced Green Fluorescent Protein." Journal of the American Chemical Society 125, no. 28 (July 2003): 8446–47. http://dx.doi.org/10.1021/ja0353311.

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31

Power, Aoife C., Anthony J. Betts, and John F. Cassidy. "Non aggregated colloidal silver nanoparticles for surface enhanced resonance Raman spectroscopy." Analyst 136, no. 13 (2011): 2794. http://dx.doi.org/10.1039/c1an15250e.

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32

De Groot, J., and R. E. Hester. "Surface-enhanced resonance Raman spectroscopy of oxyhemoglobin adsorbed onto colloidal silver." Journal of Physical Chemistry 91, no. 7 (March 1987): 1693–96. http://dx.doi.org/10.1021/j100291a001.

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33

Douglas, Phil, Robert J. Stokes, Duncan Graham, and W. Ewen Smith. "Immunoassay for P38 MAPK using surface enhanced resonance Raman spectroscopy (SERRS)." Analyst 133, no. 6 (2008): 791. http://dx.doi.org/10.1039/b715824f.

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34

Lecomte, Sophie, Hainer Wackerbarth, Peter Hildebrandt, Tewfik Soulimane, and Gerhard Buse. "Potential-dependent surface enhanced resonance Raman spectroscopy of cytochromec552 fromThermus thermophilus." Journal of Raman Spectroscopy 29, no. 8 (August 1998): 687–92. http://dx.doi.org/10.1002/(sici)1097-4555(199808)29:8<687::aid-jrs290>3.0.co;2-l.

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35

Sett, P., N. Paul, S. K. Brahma, and S. Chattopadhyay. "Resonance Raman scattering and surface-enhanced resonance Raman scattering studies of 1-(2-pyridylazo)-2-naphthol." Journal of Raman Spectroscopy 30, no. 7 (July 1999): 611–18. http://dx.doi.org/10.1002/(sici)1097-4555(199907)30:7<611::aid-jrs428>3.0.co;2-f.

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36

Li, Chunchun, Ziwei Ye, Yikai Xu, and Steven E. J. Bell. "An overview of therapeutic anticancer drug monitoring based on surface enhanced (resonance) Raman spectroscopy (SE(R)RS)." Analyst 145, no. 19 (2020): 6211–21. http://dx.doi.org/10.1039/d0an00891e.

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37

Li, Ying-Sing, and Yu Wang. "Chemically Prepared Silver/Alumina Substrate for Surface-Enhanced Raman Scattering." Applied Spectroscopy 46, no. 1 (January 1992): 142–46. http://dx.doi.org/10.1366/0003702924444506.

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A new silver-coated alumina/glass substrate was prepared by a chemical reduction method at room temperature. The substrate was found to exhibit strong surface-enhanced scatterings for crystal violet (CV), p-nitrophenol (PNP), p-nitrobenzoic acid (PNBA), and pyrene. Optimization of silver deposition time was achieved by using CV as an analyte. Lower limits of detection were determined for these compounds to demonstrate the analytical potential of the new substrate. Enhancement factors of ∼106 and ∼107 were determined from comparisons of the surface-enhanced Raman scattering (SERS) intensities of mono-molecular layers with the normal Raman intensities for PNP and PNBS, respectively. Three different methods of sample applications were adapted and tested. The reusability of the substrates was tested by recording the surface-enhanced resonance Raman scattering (SERRS) spectra of CV at different conditions.

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38

Kim, Kwan, Nam Hoon Kim, Hyoung Kun Park, Young Soo Ha, and Hyouk Soo Han. "New Strategy for Ready Application of Surface-Enhanced Resonance Raman Scattering/Surface-Enhanced Raman Scattering to Chemical Analysis of Organic Films on Dielectric Substrates." Applied Spectroscopy 59, no. 10 (October 2005): 1217–21. http://dx.doi.org/10.1366/000370205774430981.

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Dropping of appropriately concentrated AgNO3 and NaBH4 solutions, as well as laser-ablated Ag sols, onto organic molecules results in the formation of aggregated Ag nanoparticles that can induce surface-enhanced Raman scattering (SERS) for the molecules. The addition of flocculating agents such as alkali halides can further increase the Raman signals. We demonstrate in this work that Raman spectra can be obtained even for 0.01 monolayers of R6G on Si simply by spreading silver nanoparticles and/or fabricating Ag nanoparticles and nanoaggregates at the gaps and vacant sites of R6G molecules. The application prospect of the present methodology is extremely high, not only because of its simplicity but also because of the fact that the observation of vibrational spectra is one of the most incisive methods for understanding the chemical and physical phenomena on a variety of surfaces.

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39

Bell, Stephen, Joe A. Crayston, Trevor J. Dines, and Saira B. Ellahi. "Resonance Raman, Surface-Enhanced Resonance Raman, Infrared, andab InitioVibrational Spectroscopic Study of Tetraazaannulenes." Journal of Physical Chemistry 100, no. 13 (January 1996): 5252–60. http://dx.doi.org/10.1021/jp9530459.

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40

Ghopry, Samar Ali, Seyed M. Sadeghi, Cindy L. Berrie, and Judy Z. Wu. "MoS2 Nanodonuts for High-Sensitivity Surface-Enhanced Raman Spectroscopy." Biosensors 11, no. 12 (November 25, 2021): 477. http://dx.doi.org/10.3390/bios11120477.

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Nanohybrids of graphene and two-dimensional (2D) layered transition metal dichalcogenides (TMD) nanostructures can provide a promising substrate for extraordinary surface-enhanced Raman spectroscopy (SERS) due to the combined electromagnetic enhancement on TMD nanostructures via localized surface plasmonic resonance (LSPR) and chemical enhancement on graphene. In these nanohybrid SERS substrates, the LSPR on TMD nanostructures is affected by the TMD morphology. Herein, we report the first successful growth of MoS2 nanodonuts (N-donuts) on graphene using a vapor transport process on graphene. Using Rhodamine 6G (R6G) as a probe, SERS spectra were compared on MoS2 N-donuts/graphene nanohybrids substrates. A remarkably high R6G SERS sensitivity up to 2 × 10−12 M has been obtained, which can be attributed to the more robust LSPR effect than in other TMD nanostructures such as nanodiscs as suggested by the finite-difference time-domain simulation. This result demonstrates that non-metallic TMD/graphene nanohybrids substrates can have SERS sensitivity up to one order of magnitude higher than that reported on the plasmonic metal nanostructures/2D materials SERS substrates, providing a promising scheme for high-sensitivity, low-cost applications for biosensing.

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41

Faulds, Karen, W. Ewen Smith, and Duncan Graham. "DNA detection by surface enhanced resonance Raman scattering (SERRS)." Analyst 130, no. 8 (2005): 1125. http://dx.doi.org/10.1039/b500248f.

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Quaroni, L., J. Reglinski, and W. E. Smith. "Surface enhanced resonance Raman scattering from cyanocobalamin and 5′-deoxyadenosylcobalamin." Journal of Raman Spectroscopy 26, no. 12 (December 1995): 1075–76. http://dx.doi.org/10.1002/jrs.1250261210.

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Perera, Pradeep N., Shirshendu K. Deb, V. Jo Davisson, and Dor Ben-Amotz. "Multiplexed concentration quantification using isotopic surface-enhanced resonance Raman scattering." Journal of Raman Spectroscopy 41, no. 7 (October 13, 2009): 752–57. http://dx.doi.org/10.1002/jrs.2513.

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Lu, Zhang, Jiao, and Guan. "Large-Scale Fabrication of Nanostructure on Bio-Metallic Substrate for Surface Enhanced Raman and Fluorescence Scattering." Nanomaterials 9, no. 7 (June 26, 2019): 916. http://dx.doi.org/10.3390/nano9070916.

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The integration of surface-enhanced Raman scattering (SERS) and surface-enhanced fluorescence (SEF) has attracted increasing interest and is highly probable to improve the sensitivity and reproducibility of spectroscopic investigations in biomedical fields. In this work, dual-mode SERS and SEF hierarchical structures have been developed on a single bio-metallic substrate. The hierarchical structure was composed of micro-grooves, nano-particles, and nano-ripples. The crystal violet was selected as reporter molecule and both the intensity of Raman and fluorescence signals were enhanced because of the dual-mode SERS−SEF phenomena with enhancement factors (EFs) of 7.85 × 105 and 14.32, respectively. The Raman and fluorescence signals also exhibited good uniformity with the relative standard deviation value of 2.46% and 5.15%, respectively. Moreover, the substrate exhibited high sensitivity with the limits of detection (LOD) as low as 1 × 10−11 mol/L using Raman spectroscopy and 1 × 10−10 mol/L by fluorescence spectroscopy. The combined effect of surface plasmon resonance and “hot spots” induced by the hierarchical laser induced periodical surface structures (LIPSS) was mainly contributed to the enhancement of Raman and fluorescence signal. We propose that the integration of SERS and SEF in a single bio-metallic substrate is promising to improve the sensitivity and reproducibility of detection in biomedical investigations.

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D’Acunto, Mario. "In Situ Surface-Enhanced Raman Spectroscopy of Cellular Components: Theory and Experimental Results." Materials 12, no. 9 (May 13, 2019): 1564. http://dx.doi.org/10.3390/ma12091564.

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In the last decade, surface-enhanced Raman spectroscopy (SERS) met increasing interest in the detection of chemical and biological agents due to its rapid performance and ultra-sensitive features. Being SERS a combination of Raman spectroscopy and nanotechnology, it includes the advantages of Raman spectroscopy, providing rapid spectra collection, small sample sizes, characteristic spectral fingerprints for specific analytes. In addition, SERS overcomes low sensitivity or fluorescence interference that represents two major drawbacks of traditional Raman spectroscopy. Nanoscale roughened metal surfaces tremendously enhance the weak Raman signal due to electromagnetic field enhancement generated by localized surface plasmon resonances. In this paper, we detected label-free SERS signals for arbitrarily configurations of dimers, trimers, etc., composed of gold nanoshells (AuNSs) and applied to the mapping of osteosarcoma intracellular components. The experimental results combined to a theoretical model computation of SERS signal of specific AuNSs configurations, based on open cavity plasmonics, give the possibility to quantify SERS enhancement for overcoming spectral fluctuations. The results show that the Raman signal is locally enhanced inside the cell by AuNSs uptake and correspondent geometrical configuration generating dimers are able to enhance locally electromagnetic fields. The SERS signals inside such regions permit the unequivocal identification of cancer-specific biochemical components such as hydroxyapatite, phenylalanine, and protein denaturation due to disulfide bonds breaking between cysteine links or proline.

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Constantino, Carlos J. L., Tibebe Lemma, Patricia A. Antunes, Paul Goulet, and Ricardo Aroca. "Surface-Enhanced Resonance Raman Scattering: Single-Molecule Detection in a Langmuir—Blodgett Monolayer." Applied Spectroscopy 57, no. 6 (June 2003): 649–54. http://dx.doi.org/10.1366/000370203322005337.

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Surface-enhanced resonance Raman scattering (SERRS) is used for single-molecule detection from spatially resolved 1-μm2 sections of a Langmuir–Blodgett (LB) monolayer deposited onto a Ag film. The target molecule, bis (benzimidazo) thioperylene (BZP), is dispersed in an arachidic acid monomolecular layer containing one BZP molecule per μm2, which is also the probing area of the Raman microscope. For concentrated samples (attomole quantities in the field of view), average SERRS, surface-enhanced fluorescence (SEF), and Raman imaging, including line mapping and global images at different temperatures, were recorded. Single-molecule SERRS spectra, obtained using an LB monolayer, present changes in bandwidth and relative intensities, highlighting the properties of single-molecule SERRS that are lost in average SERRS measurements of mixed LB monolayers obtained at the same temperatures. Also, the dilute system phenomenon of blinking is discussed with regard to results obtained from LB monolayers. The dilution process used in the single-molecule LB SERRS work is independently supported by fluorescence results obtained from very dilute solutions with monomer concentrations down to 10−12 M.

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Xu, Yiming, and Li Liang. "Surface-Enhanced Resonance Raman Scattering of R-Phycoerythrin Adsorbed by Silver Hydrosols." Applied Spectroscopy 48, no. 9 (September 1994): 1147–49. http://dx.doi.org/10.1366/0003702944029578.

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Surface-enhanced resonance Raman scattering (SERRS) of R-phycoerythrin adsorbed by silver hydrosols was obtained. There are thirty-five lines in its SERRS spectra. However, there is a “fluorescent packet” in its Raman spectra only. All lines are covered up by the “packet”. The SERRS spectra were enhanced and the fluorescence was quenched rapidly because of the formation of the hydrosol/phycoerythrobilin (PEB) complex and the interaction with the SERS-active surface of the metallic base. The R-phycoerythrin consists of PEB and its surrounding protein matrix, but the lines of PEB appeared in R-phycoerythrin SERRS spectra only. This result indicates again that a competitive binding exists in the binding of protein-bound chromophore (R-phycoerythrin) components with silver hydrosols; thus, the chromophores (PEB) are mainly responsible for the SERRS effect. Therefore, the SERRS technique is very useful for studying protein-bound chromophores.

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Miskovsky, Pavol, Jozef Hritz, Santiago Sanchez-Cortes, Gabriela Fabriciova, Jozef Ulicny, and Laurent Chinsky. "Interaction of Hypericin with Serum Albumins: Surface-enhanced Raman Spectroscopy, Resonance Raman Spectroscopy and Molecular Modeling Study¶." Photochemistry and Photobiology 74, no. 2 (May 1, 2007): 172–83. http://dx.doi.org/10.1562/0031-8655(2001)0740172iohwsa2.0.co2.

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Miskovsky, Pavol, Jozef Hritz, Santiago Sanchez-Cortes, Gabriela Fabriciova, Jozef Ulicny, and Laurent Chinsky. "Interaction of Hypericin with Serum Albumins: Surface-enhanced Raman Spectroscopy, Resonance Raman Spectroscopy and Molecular Modeling Study¶." Photochemistry and Photobiology 74, no. 2 (2001): 172. http://dx.doi.org/10.1562/0031-8655(2001)074<0172:iohwsa>2.0.co;2.

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Ma, Jiaying, and Ying-Sing Li. "Optical-Fiber Raman Probe with Low Background Interference by Spatial Optimization." Applied Spectroscopy 48, no. 12 (December 1994): 1529–31. http://dx.doi.org/10.1366/0003702944027831.

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A Raman probe was set up with optical fibers and a graded refractive index (GRIN) lens. It was found that the Raman background arising from optical fiber was spatially dependent, while normal Raman (NR) scattering, surface-enhanced Raman scattering (SERS), and surface-enhanced resonance Raman scattering (SERRS) were spatially independent. Spatial optimization was carried out to minimize the background interference of the optical fiber Raman probe with the use of benzoic acid as a test sample. The best configuration of the probe could also be applied to both SERS and SERRS. SER spectra of p-nitrophenol (1.0 × 10−3 M) and SERR spectra of methyl red (1.0 × 10−6 M) were obtained with the use of this probe to check its performance.

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