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1

McCabe, Ailie, W. Ewen Smith, Grant Thomson, et al. "Remote Detection Using Surface-Enhanced Resonance Raman Scattering." Applied Spectroscopy 56, no. 7 (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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2

Xu, Yiming, and Li Liang. "Surface-Enhanced Resonance Raman Scattering of R-Phycoerythrin Adsorbed by Silver Hydrosols." Applied Spectroscopy 48, no. 9 (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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3

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 (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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4

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 (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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5

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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6

Nicolson, Fay, Lauren E. Jamieson, Samuel Mabbott, et al. "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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7

Keir, Ruth, Daran Sadler, and W. E. Smith. "Preparation of Stable, Reproducible Silver Colloids for Use as Surface-Enhanced Resonance Raman Scattering Substrates." Applied Spectroscopy 56, no. 5 (2002): 551–59. http://dx.doi.org/10.1366/0003702021955259.

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A flow system for the production of stable, reproducible batches of silver colloid for use as substrates for surface-enhanced resonance Raman spectroscopy (SERRS) is described. The colloids were prepared by borohydride reduction of silver nitrate and subsequent stabilization was achieved by adding trisodium citrate. The batches of colloid produced were analyzed using UV-visible spectroscopy and their suitability for use as SERRS substrates was assessed using 3,5-dimethoxy-4-(5′-azobenzotriazole)phenylamine as the analyte. SERRS analysis was carried out using a flowcell. Using the method described, batches of silver colloid were prepared that were stable for at least five months and when used as SERRS substrates resulted in a relative standard deviation in SERRS intensity of 3,5-dimethoxy-4-(5′-azobenzotriazole)phenylamine of 6.6% between colloid batches. The robustness of the system for production of stable, reproducible colloids was assessed using experimental design. The final method proposed enables reproducible, time-stable colloid to be made in a simple manner, thus eliminating one of the major problems associated with the use of SERRS detection in analytical procedures.
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8

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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9

Bizzarri, Anna Rita, and Salvatore Cannistraro. "Surface-Enhanced Resonance Raman Spectroscopy Signals from Single Myoglobin Molecules." Applied Spectroscopy 56, no. 12 (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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10

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 (1991): 756–59. http://dx.doi.org/10.1366/0003702914336570.

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11

Ma, Jiaying, and Ying-Sing Li. "Optical-Fiber Raman Probe with Low Background Interference by Spatial Optimization." Applied Spectroscopy 48, no. 12 (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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12

Shadi, Iqbal T., Babur Z. Chowdhry, Martin J. Snowden, and Robert Withnall. "Quantitative Detection of Alcian Blue 8GX in the Low Concentration Range Using Surface-Enhanced Resonance Raman Spectroscopy." Applied Spectroscopy 54, no. 3 (2000): 384–89. http://dx.doi.org/10.1366/0003702001949456.

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The viability of the application of surface-enhanced resonance Raman spectroscopy (SERRS) to the quantitative analysis of the dye alcian blue 8GX has been examined with the use of citrate- and borohydride-reduced silver colloids. A good linear correlation is observed for the dependence of the SERRS signal intensities at 1344 and 1536 cm−1 ( R = 0.992 and 0.994, respectively) on dye concentrations in the range of 10−9–10−7 M, when using the citrate-reduced silver sol. Likewise, a good linear correlation is also observed for the dependence of the SERRS signal intensities at 1344 and 1536 cm−1 ( R = 0.978 and 0.959, respectively) on dye concentrations in the range 10−10–10−9 M, when using the borohydride-reduced silver sol. At concentrations of dye above 10−7 M, the concentration dependence of the SERRS signals is nonlinear, almost certainly due to the coverage of the surface of the colloidal silver particles by the dye being in excess of a full monolayer. However, at concentrations of alcian blue greater than 10−7 M, resonance Raman spectroscopy (RRS) can be employed for quantitative analysis of the dye. When performing RRS, using methanol as an internal standard, we observed a good linear correlation for the dependence of the signal intensities at 1344 and 1536 cm−1 ( R = 0.995 for both bands) on the dye concentration in the 10−6–10−3 M range. The limits of detection of alcian blue by SERRS using a citrate-reduced silver sol, SERRS using a borohydride-reduced silver sol, RRS, and visible absorption spectroscopy are found to be 26 ppb, 203 ppt, 2 ppm, and 0.7 ppm, respectively.
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13

Grosserueschkamp, Marc, Christoph Nowak, Wolfgang Knoll, and Renate L. C. Naumann. "Time-resolved surface-enhanced resonance Raman spectro-electrochemistry of heme proteins." Spectroscopy 24, no. 1-2 (2010): 125–29. http://dx.doi.org/10.1155/2010/815817.

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Heme proteins such as cytochrome c (cc) play a fundamental role in many biological processes. Surface-enhanced resonance Raman spectroscopy (SERRS) combined with electrochemical methods is an ideal tool to study the redox processes of heme proteins. In this context we designed a new measuring cell allowing for simultaneous electrochemical manipulation and high sensitive SERRS measurements of heme proteins. The measuring cell is based on an inverted rotating disc electrode for excitation by using a confocal Raman microscope. Furthermore, we developed a SER(R)S-active silver modified silver substrate for spectro-electrochemical applications. For this purpose silver nanoparticles (AgNPs) were adsorbed on top of a planar silver surface. The substrate was optimized for an excitation wavelength of 413 nm corresponding to the resonance frequency of heme structures. An enhancement factor of 105was achieved. The high performance of the new measuring cell in combination with the new silver substrate was demonstrated using cc as a reference system.
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14

Jha, Shankar K., Yasin Ekinci, Mario Agio, and Jörg F. Löffler. "Towards deep-UV surface-enhanced resonance Raman spectroscopy of explosives: ultrasensitive, real-time and reproducible detection of TNT." Analyst 140, no. 16 (2015): 5671–77. http://dx.doi.org/10.1039/c4an01719f.

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15

AROCA, R., N. PIECZONKA, and A. P. KAM. "Surface-enhanced Raman scattering and SERRS imaging of phthalocyanine mixed films." Journal of Porphyrins and Phthalocyanines 05, no. 01 (2001): 25–32. http://dx.doi.org/10.1002/1099-1409(200101)5:1<25::aid-jpp301>3.0.co;2-a.

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The objective of the present work is the study of the surface-enhanced spectroscopy of mixed thin solid films of metallophthalocyanine ( MPc ; M ≡ Cu , Co ) and bis(n-propylimido)perylene ( Bis - PTCDPr ) materials fabricated by vacuum co-evaporation onto silver island films. The surface-enhanced Raman scattering (SERS) and surface-enhanced resonance Raman scattering (SERRS) of neat Bis - PTCDPr , CuPc and CoPc were also recorded using visible 514.5 and 633 nm laser lines and near-infrared excitation at 780 nm. During the investigation it was found that the Raman scattering (RS) and resonance Raman scattering (RRS) spectra of CuPc and CoPc films were sensitive to the irradiance at the sample. To further explore the effect of local heating on the vibrational spectrum, a temperature dependence (between −180 and 200 °C) study was carried out using the 514.5 nm laser line with constant laser power. The overtones and combinations of the CuPc and CoPc molecules were also clearly observed in the RRS and SERRS spectra. The study of the SER(R)S spectra allowed us to conclude that the dyes of the mixed films were physically adsorbed onto the silver islands. It is also shown that, in mixed films, differences in the absorption properties can be used to tune into the spectrum of any one of the components of the mixture with the appropriate laser line. For the first time, SERRS mapping and global imaging of mixed films obtained with the 514.5 nm laser line are reported. Complementary information about the quality of the films, homogeneity and phase separation may be obtained using SERRS imaging.
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16

Johannessen, Christian, and Salim Abdali. "Surface enhanced Raman optical activity as an ultra sensitive tool for ligand binding analysis." Spectroscopy 21, no. 3 (2007): 143–49. http://dx.doi.org/10.1155/2007/454102.

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The Surface Enhanced Resonance Raman Scattering (SERRS) and Surface Enhanced Resonance Raman Optical Activity (SERROA) spectra of myoglobin and the myoglobin-azide complex were measured on very dilute samples (100 nM protein) in order to analyze the sensitivity of SERROA spectroscopy when inducing small structural changes. While the SERRS spectra of the two compounds were virtually identical, comparison of the SERROA spectra revealed several differences, including frequency shifts and changes in signal intensity, consistent with structural change in the porphyrin prosthetic group of the protein upon azide complexation. Application of this method allows for rapid analysis of ligand binding in metalloproteins in dilute aqueous solution and could in the future, when combined with theoretical studies, increase the obtainable structural resolution of proteins beyond that of X-ray analysis.
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17

Juneja, Subhavna, and Jaydeep Bhattacharya. "Biosynthetically grown dendritic silver nanostructures for visible Surface Enhanced Resonance Raman Spectroscopy (v-SERRS)." New Journal of Chemistry 44, no. 37 (2020): 16163–73. http://dx.doi.org/10.1039/d0nj03040f.

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18

Li, Ying-Sing, and Yu Wang. "Chemically Prepared Silver/Alumina Substrate for Surface-Enhanced Raman Scattering." Applied Spectroscopy 46, no. 1 (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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19

Kneipp, Katrin, Yang Wang, Ramachandra R. Dasari, and Michael S. Feld. "Approach to Single Molecule Detection Using Surface-Enhanced Resonance Raman Scattering (SERRS): A Study Using Rhodamine 6G on Colloidal Silver." Applied Spectroscopy 49, no. 6 (1995): 780–84. http://dx.doi.org/10.1366/0003702953964480.

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We have measured surface-enhanced resonance Raman scattering (SERRS) spectra of rhodamine 6G (R6G) at concentrations as low as 8 × 10−16 M in colloidal silver solution activated by NaCl ions. The spectra were measured with a fiber-optic probe using the 514.5-nm argon-ion laser line as excitation source and a charge-coupled-device (CCD) detection system. The correlation of SERRS photo counts and R6G concentration was found to be linear between 8 × 10−11 and 8 × 10−14 M concentrations within our experimental accuracy. Experiments conducted with small scattering volumes show that fewer than 100 R6G molecules are sufficient to give rise to a SERRS spectrum with reasonable signal-to-noise ratio. These results demonstrate that in certain cases SERRS can achieve detection limits comparable to those for fluorescence spectroscopy, and at the same time provides higher structural specificity than fluorescence. The possibilities of using SERRS for single molecule detection are discussed.
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20

Xi, Kang, Shiv K. Sharma, Gordon T. Taylor, and David W. Muenow. "Determination of Low Concentrations of the Azo-Dye Complex of Nitrite in Fresh Water and Seawater Using Surface-Enhanced Resonance Raman Spectroscopy (SERRS)." Applied Spectroscopy 46, no. 5 (1992): 819–26. http://dx.doi.org/10.1366/0003702924124817.

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A highly sensitive and selective method for the determination of low concentrations of nitrite in aqueous solutions using surface-enhanced resonance Raman spectroscopy (SERRS) is presented. The SERRS-active substrate was silver hydrosol. In order to induce the SERRS effect, nitrite was transformed into a colored product (an azo dye) by a standard chemical reaction. The detection limit for nitrite is 0.02 nM in distilled water, and analytical calibration curves yield straight lines in the concentration range below 30 nM. The sensitivity of this method is better than that of colorimetry and other techniques such as chemiluminescence. This improvement indicates that SERRS shows great promise as a useful analytical tool for trace analysis of nitrite and dyes.
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21

Sui, Huimin, Yue Wang, Xiaolei Zhang, et al. "Ultrasensitive detection of thyrotropin-releasing hormone based on azo coupling and surface-enhanced resonance Raman spectroscopy." Analyst 141, no. 17 (2016): 5181–88. http://dx.doi.org/10.1039/c6an00884d.

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22

Littleford, R. E., M. P. Hughes, G. Dent, D. Tackley, and W. E. Smith. "Surface-Enhanced Resonance Raman Scattering of Black Inkjet Dyes in Solution and in Situ Printed onto Paper." Applied Spectroscopy 57, no. 8 (2003): 977–83. http://dx.doi.org/10.1366/000370203322258940.

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Understanding the changes that occur when dyes are absorbed onto paper is crucial for the design of new inkjet dyes. This problem is particularly difficult for black dyes that have complex chromophores, and as a result, spectroscopic information on electronic and structural changes can be of importance. Surface-enhanced resonance Raman scattering (SERRS) and electronic structure calculations were used to probe in situ changes in the chromophore in black di-azo dyes printed onto paper. The data indicate that the low-energy chromophore is due mainly to the hydrazone group and the high-energy chromophore to both the azo and hydrazone groups. A comparison of SERRS from the dyes adsorbed onto silver particles in suspension and from the dyes on paper demonstrated a broadening of the chromophore into the red for both dyes and evidence of a structural change in one dye.
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23

Faulds, Karen, Roger Jarvis, W. Ewen Smith, Duncan Graham, and Royston Goodacre. "Multiplexed detection of six labelled oligonucleotides using surface enhanced resonance Raman scattering (SERRS)." Analyst 133, no. 11 (2008): 1505. http://dx.doi.org/10.1039/b800506k.

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24

Shadi, I. T., B. Z. Chowdhry, M. J. Snowden, and R. Withnall. "Semi-quantitative analysis of indigo by surface enhanced resonance Raman spectroscopy (SERRS) using silver colloids." Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 59, no. 10 (2003): 2213–20. http://dx.doi.org/10.1016/s1386-1425(03)00065-9.

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25

Nicolson, Fay, Lauren E. Jamieson, Samuel Mabbott, et al. "Towards establishing a minimal nanoparticle concentration for applications involving surface enhanced spatially offset resonance Raman spectroscopy (SESORRS) in vivo." Analyst 143, no. 22 (2018): 5358–63. http://dx.doi.org/10.1039/c8an01860j.

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26

Andrýsková, Pavlína, Karolína Machalová Šišková, Ariana Fargašová, and Radek Zbořil. "Effect of Noble Metal Nanoparticles in SERRS Measurements of Water-Soluble Porphyrins." Advanced Materials Research 1088 (February 2015): 43–47. http://dx.doi.org/10.4028/www.scientific.net/amr.1088.43.

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Use of the noble metal nanoparticles in the surface-enhanced resonance Raman spectroscopy (SERRS) is a significant part the measurement. These nanoparticles are often used for SERRS measurements of silver nanoparticles prepared by reduction methods. From the literature it is obvious that the most popular methods of preparation of Ag nanoparticles are procedures which are using the chemical reduction and/or laser ablation. In this paper we discuss the comparison of SERRS spectra of water-soluble porphyrins (TTMAPP and TMPyP) in systems with Ag nanoparticles prepared by chemical reduction with sodium borohydride, sodium citrate and glucose. The comparison of different systems gives insight into the option of suitableility of using of nanoparticles with various surface ions in the production of different spectral forms of chosen porphyrins in dependence on their structures.
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Graham, Duncan, Karen Faulds, David Thompson, Fiona Mackenzie, Robert Stokes, and Alexandra Macaskill. "Functionalized nanoparticles for nucleic acid sequence analysis using optical spectroscopies." Biochemical Society Transactions 37, no. 2 (2009): 441–44. http://dx.doi.org/10.1042/bst0370441.

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SERRS (surface-enhanced resonance Raman scattering) is a vibrational spectroscopy which allows extremely sensitive and selective detection of labelled DNA sequences with detection limits which rival, and in most cases surpass, that of fluorescence. SERRS relies on a visible chromophore adsorbing on to an enhancing surface. DNA itself is not SERRS-active, as it lacks a suitable visible chromophore and has poor adsorption properties on to the surfaces used for enhancement. The surface normally used for enhancement in these sorts of studies are metallic nanoparticles and, through modification of DNA probes by the addition of suitable SERRS labels, signals can be obtained that are highly sensitive and very selective. The aggregation state of the nanoparticles is critical to the sensitivity, and, in the present paper, we show how straightforward detection of labelled DNA probes can be achieved using SERRS in a quantitative manner and with a variety of different commercially available labels. In a second approach, we show how the properties of aggregation to turn on the SERRS effect can be exploited through DNA hybridization to give identification of a particular DNA sequence. This approach lends itself to closed-tube formats and is a promising way forward for molecular diagnostics using SERRS.
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28

Shadi, I. T., B. Z. Chowdhry, M. J. Snowden, and R. Withnall. "Semi-quantitative analysis of indigo carmine, using silver colloids, by surface enhanced resonance Raman spectroscopy (SERRS)." Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 59, no. 10 (2003): 2201–6. http://dx.doi.org/10.1016/s1386-1425(03)00063-5.

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29

Zhang, Lixia, Peng Li, Lan Luo, et al. "Sensitive Detection of Rhodamine B in Condiments Using Surface-Enhanced Resonance Raman Scattering (SERRS) Silver Nanowires as Substrate." Applied Spectroscopy 71, no. 10 (2017): 2395–403. http://dx.doi.org/10.1177/0003702817711700.

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In this paper, a facile large-scale preparation of surface-enhanced resonance Raman scattering (SERRS) substrates for the determination of Rhodamine B (RhB) based on silver nanowires (Ag NWs) has been developed. The morphology, structure, and properties of as-prepared Ag NWs are characterized using ultraviolet–visible (UV-Vis) spectroscopy, field emission scanning electron microscopy (FE-SEM), and X-ray diffraction (XRD), respectively. Ag NWs were assembled onto glass slides through a self-assembly method. Moreover, in our experiment, as-prepared Ag NWs@glass were used as a SERRS substrate to detect RhB at the excitation wavelength of 532 nm. Experimental conditions such as pH value and soaking time on SERRS performance were studied and optimized. Under the optimized conditions, the SERRS intensity at 1648 cm−1 exhibited a linear relationship with the concentration of RhB in the range of 1.0 × 10−9–1.0 × 10−5 mol L−1 and detection limit (signal-to-noise ratio [S/N] = 3) is as low as 0.3 nmol L−1. The corresponding correlation coefficient of the linear equation was 0.996. This method based on Ag NWs@glass for the detection of RhB in three kinds of condiment was investigated. The limits of detection (LODs) for RhB were 0.35 µg/g in chili powder, 0.14 µg/g in chili sauce, and 0.02 µg/g in Chinese prickly ash. The relative standard deviations (RSD) were between 2.18% and 4.56% (n = 3) and recoveries at three levels were in the range of 80.0–98.7% for different spiked food products. Moreover, the results showed that the proposed method was sensitive, convenient, and feasible for the determination of RhB in condiments.
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30

Holt, Randall E., David L. Farrens, Pill Soon Song, and Therese M. Cotton. "Surface-enhanced resonance Raman scattering (SERRS) spectroscopy applied to phytochrome and its model compounds. I. Biliverdin photoisomers." Journal of the American Chemical Society 111, no. 26 (1989): 9156–62. http://dx.doi.org/10.1021/ja00208a003.

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31

Shadi, Iqbal T., Babur Z. Chowdhry, Martin J. Snowden, and Robert Withnall. "Semi-quantitative analysis of alizarin and purpurin by surface-enhanced resonance Raman spectroscopy(SERRS) using silver colloids." Journal of Raman Spectroscopy 35, no. 89 (2004): 800–807. http://dx.doi.org/10.1002/jrs.1199.

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32

Jancura, D., S. Sánchez-cortés, E. Kocisova, A. Tinti, P. Miskovsky, and A. Bertoluzza. "Surface-enhanced resonance raman spectroscopy of hypericin and emodin on silver colloids: SERRS and NIR FTSERS study." Biospectroscopy 1, no. 4 (1995): 265–73. http://dx.doi.org/10.1002/bspy.350010405.

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33

Enright, Alexis, Ljiljana Fruk, Antonio Grondin, Callum J. McHugh, W. Ewen Smith, and Duncan Graham. "SERRS dyes : Part 3. Synthesis of reactive benzotriazole azo dyes for surface enhanced resonance Raman scattering." Analyst 129, no. 10 (2004): 975. http://dx.doi.org/10.1039/b406473a.

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34

Littleford, R. E., G. Dent, and W. E. Smith. "A comparison of electrochemical and colloidal surface enhanced resonance Raman scattering (SERRS) from two analytes designed to chemisorb to silver surfaces." Vibrational Spectroscopy 35, no. 1-2 (2004): 51–57. http://dx.doi.org/10.1016/j.vibspec.2003.11.009.

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35

Liang, E. J., D. Göttges, and W. Kiefer. "Surface-Enhanced Resonance Raman Spectroscopy of Flavins on Silver Nitrate-Modified Cu and Fe as Well as Cu-Zn-Pb and Fe-C-Cr-Ni Surfaces." Applied Spectroscopy 48, no. 9 (1994): 1088–94. http://dx.doi.org/10.1366/0003702944029451.

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Surface-enhanced resonance Raman spectroscopy (SERRS) of riboflavin, flavin adenine dinucleotide (FAD), and flavin mononucleotide (FMN) on Cu, Cu-Zn-Pb, and Fe as well as Fe-C-Cr-Ni has been performed by means of the modification of these substrates with silver nitrate. It is found that the SERR spectrum of a flavin molecule on the alloy Cu-Zn-Pb is different from that on the pure Cu, and this is also the case for a flavin molecule on the alloy Fe-C-Cr-Ni and on pure Fe. This result indicates possibly that Zn, rather than Cu, and Ni or Cr, rather than Fe, in the alloys also interact with the flavin molecules. In addition, the three flavins on the same supporting metal surfaces also exhibit some differences in the SERR spectra. This result implies an involvement of the side chains of the flavin molecules in the enhancement. The SERR spectra of the three flavins are compared with their resonance Raman (RR) spectra. On the basis of our experimental results, a direct interaction of N–5 and possibly also O–4 in the flavins with silver is suggested. The general effectiveness of this method for obtaining SERS is demonstrated, and the enhancement mechanism of these substrates is also briefly discussed.
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36

Chen, Jian, Ji-Ming Hu, Zhi-San Xu та Rong-Sheng Sheng. "Surface-Enhanced Resonance Raman Spectra Study of α,β,γ,δ-Tetra-(4-Trimethyl Ammonium Phenyl) Porphyrin". Applied Spectroscopy 47, № 3 (1993): 292–95. http://dx.doi.org/10.1366/0003702934066659.

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In the present study, surface-enhanced resonance Raman scattering (SERRS) spectra of α,β,γ,δ-tetra-(4-trimethyl ammonium phenyl) porphyrin [T(4-TAP)P] were obtained. With increasing pH, the relative intensities of the bands at 890 and 1244 cm−1 decreased. These bands were attributed to γ(C-H) and δ(Cm-phenyl), respectively. The bands at 420 and 576 cm−1, which were assigned to γ(phenyl-ring), were enhanced. The molecular symmetry of T(4-TAP)P is discussed in terms of group theory. The bands at 1554 and 1496 cm−1 could be attributed to the vibrational modes of the porphyrin macrocycle; the bands at 1460, 1362, and 1330 cm−1 were assigned to ν(C-C) + δ(C-H), ν(C-N) + δ(C-H), and ν(C-N), respectively. All these bands change in band intensities, positions and widths, with the potential changing from +0.2 V to −0.2 V. It was concluded that the adsorbed porphyrins underwent partial incorporation with Ag from the electrode, and the adsorbate assumed a flat orientation on the silver electrode as well as the Ag colloid surface.
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37

Chen, Yuanyuan, Hanwen Cheng, Kha Tram, et al. "A paper-based surface-enhanced resonance Raman spectroscopic (SERRS) immunoassay using magnetic separation and enzyme-catalyzed reaction." Analyst 138, no. 9 (2013): 2624. http://dx.doi.org/10.1039/c3an36647b.

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38

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 (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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39

Rodger, C., V. Rutherford, P. C. White, and W. E. Smith. "Towards quantitative surface enhanced resonance Raman scattering (SERRS): a study of aggregation and concentration for two rhodamine dyes." Journal of Raman Spectroscopy 29, no. 7 (1998): 601–6. http://dx.doi.org/10.1002/(sici)1097-4555(199807)29:7<601::aid-jrs282>3.0.co;2-9.

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40

Dizajghorbani-Aghdam, Hossein, Thomas S. Miller, Rasoul Malekfar, and Paul F. McMillan. "SERS-Active Cu Nanoparticles on Carbon Nitride Support Fabricated Using Pulsed Laser Ablation." Nanomaterials 9, no. 9 (2019): 1223. http://dx.doi.org/10.3390/nano9091223.

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We report a single-step route to co-deposit Cu nanoparticles with a graphitic carbon nitride (gCN) support using nanosecond Ce:Nd:YAG pulsed laser ablation from a Cu metal target coated using acetonitrile (CH3CN). The resulting Cu/gCN hybrids showed strong optical absorption in the visible to near-IR range and exhibited surface-enhanced Raman or resonance Raman scattering (SERS or SERRS) enhancement for crystal violet (CV), methylene blue (MB), and rhodamine 6G (R6G) used as probe analyte molecules adsorbed on the surface. We have characterized the Cu nanoparticles and the nature of the gCN support materials using a range of spectroscopic, structural, and compositional analysis techniques.
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41

White, P. C. "In situ Surface Enhanced Resonance Raman Scattering (SERRS) spectroscopy of biro inks – long term stability of colloid treated samples." Science & Justice 43, no. 3 (2003): 149–52. http://dx.doi.org/10.1016/s1355-0306(03)71762-6.

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42

Farrens, David L., Randall E. Holt, Bernard N. Rospendowski, Pill Soon Song, and Therese M. Cotton. "Surface-enhanced resonance Raman scattering (SERRS) spectroscopy applied to phytochrome and its model compounds. 2. Phytochrome and phycocyanin chromophores." Journal of the American Chemical Society 111, no. 26 (1989): 9162–69. http://dx.doi.org/10.1021/ja00208a004.

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43

Khan, Imran, Dale Cunningham, Sorin Lazar, Duncan Graham, W. Ewen Smith, and David W. McComb. "A TEM and electron energy loss spectroscopy (EELS) investigation of active and inactive silver particles for surface enhanced resonance Raman spectroscopy (SERRS)." Faraday Discuss. 132 (2006): 171–78. http://dx.doi.org/10.1039/b506644a.

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44

Peica, N., and W. Kiefer. "Characterization of indigo carmine with surface-enhanced resonance Raman spectroscopy (SERRS) using silver colloids and island films, and theoretical calculations." Journal of Raman Spectroscopy 39, no. 1 (2007): 47–60. http://dx.doi.org/10.1002/jrs.1813.

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45

Vanhecke, F., K. Heremans, A. Kirsch-De Mesmaeker, L. Jacquet, and A. Masschelein. "Surface-enhanced resonance Raman scattering (SERRS) of ruthenium(II) heteroleptic complexes with 2,2′-bipyridine and 1,4,5,8,9,12-hexaazatriphenylene adsorbed on silver sols." Journal of Raman Spectroscopy 20, no. 9 (1989): 617–23. http://dx.doi.org/10.1002/jrs.1250200912.

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46

Taylor, Gordon T., Shiv K. Sharma, and Kakkala Mohanan. "Optimization of a Flow Injection Sampling System for Quantitative Analysis of Dilute Aqueous Solutions Using Combined Resonance and Surface-Enhanced Raman Spectroscopy (SERRS)." Applied Spectroscopy 44, no. 4 (1990): 635–40. http://dx.doi.org/10.1366/0003702904087217.

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47

Nicolai, Silvia H. A., and Joel C. Rubim. "Surface-Enhanced Resonance Raman (SERR) Spectra of Methylene Blue Adsorbed on a Silver Electrode." Langmuir 19, no. 10 (2003): 4291–94. http://dx.doi.org/10.1021/la034076v.

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48

Sengupta, Kushal, Sudipta Chatterjee, and Abhishek Dey. "In Situ Mechanistic Investigation of O2 Reduction by Iron Porphyrin Electrocatalysts Using Surface-Enhanced Resonance Raman Spectroscopy Coupled to Rotating Disk Electrode (SERRS-RDE) Setup." ACS Catalysis 6, no. 10 (2016): 6838–52. http://dx.doi.org/10.1021/acscatal.6b01122.

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49

Zuccarello, Lidia, Catarina Barbosa, Edilson Galdino, et al. "SERR Spectroelectrochemistry as a Guide for Rational Design of DyP-Based Bioelectronics Devices." International Journal of Molecular Sciences 22, no. 15 (2021): 7998. http://dx.doi.org/10.3390/ijms22157998.

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Immobilised dye-decolorizing peroxidases (DyPs) are promising biocatalysts for the development of biotechnological devices such as biosensors for the detection of H2O2. To this end, these enzymes have to preserve native, solution properties upon immobilisation on the electrode surface. In this work, DyPs from Cellulomonas bogoriensis (CboDyP), Streptomyces coelicolor (ScoDyP) and Thermobifida fusca (TfuDyP) are immobilised on biocompatible silver electrodes functionalized with alkanethiols. Their structural, redox and catalytic properties upon immobilisation are evaluated by surface-enhanced resonance Raman (SERR) spectroelectrochemistry and cyclic voltammetry. Among the studied electrode/DyP constructs, only CboDyP shows preserved native structure upon attachment to the electrode. However, a comparison of the redox potentials of the enzyme in solution and immobilised states reveals a large discrepancy, and the enzyme shows no electrocatalytic activity in the presence of H2O2. While some immobilised DyPs outperform existing peroxidase-based biosensors, others fail to fulfil the essential requirements that guarantee their applicability in the immobilised state. The capacity of SERR spectroelectrochemistry for fast screening of the performance of immobilised heme enzymes places it in the front-line of experimental approaches that can advance the search for promising DyP candidates.
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50

Zhou, Haibo, Shenyu Lin, Yichu Nie, et al. "Surface-enhanced resonance Raman scattering (SERRS) simulates PCR for sensitive DNA detection." Analyst 140, no. 22 (2015): 7518–21. http://dx.doi.org/10.1039/c5an01887k.

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This paper describes a novel double-stranded DNA detection method through resonance between SYBR Green I and DNA with the surface-enhanced resonance Raman scattering (SERRS) assay, which opens an avenue to the quantitative and reliable application of SERRS in DNA detection.
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