Remote Detection Using Surface-Enhanced Resonance Raman Scattering

McCabe, A.; Smith, W. Ewen; Thomson, Grant; Batchelder, D. N.; Lacey, R. W.; Ashcroft, Geoffrey; Foulger, Brian

doi:10.1366/000370202760171473

Cited by 14 publications

(6 citation statements)

References 37 publications

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“…Many more applications than can be described here have been reported and, if more information is required, there are some very good books of reviews. 74,75 The reasons applications have taken time to develop are clear from the number of points discussed above. However, recent advances and the appearance of commercially viable products mean that much of this is now well understood, making the development of the technique much easier and releasing its potential for practical application.…”

Section: Discussionmentioning

confidence: 99%

Surface-Enhanced Raman Scattering (SERS) and Surface-Enhanced Resonance Raman Scattering (SERRS): A Review of Applications

et al. 2011

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Surface-enhanced Raman scattering (SERS) and surface-enhanced resonance Raman scattering (SERRS) can provide positive identification of an analyte or an analyte mixture with high sensitivity and selectivity. Better understanding of the theory and advances in the understanding of the practice have led to the development of practical applications in which the unique advantages of SERS/SERRS have been used to provide effective solutions to difficult analytical problems. This review presents a basic theory and illustrates the way in which SERS/SERRS has been developed for practical use.

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Section: Discussionmentioning

confidence: 99%

Surface-Enhanced Raman Scattering (SERS) and Surface-Enhanced Resonance Raman Scattering (SERRS): A Review of Applications

et al. 2011

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“…10 -4 M Benzotriazole dye was used as an analyte for SERS experiments remarkable for the chemical stability and high enhancement factor owing to the molecular absorption at ca. 450 nm in water [39].…”

Section: Experimental Hclmentioning

confidence: 99%

Hole–Mask Colloidal Lithography

et al. 2007

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Self-organization of colloidal particles on surfaces to form 2D or 3D nanofabrication templates has been explored actively in the past decade as an effective bottom-up method to produce a plethora of nanoarchitectures with diverse functionalities. Specifically, several elegant approaches to pattern surfaces with large-scale 2D arrays of nanosized structures through lateral self-assembly of colloidal spheres have been developed. These methods are commonly termed colloidal lithography (CL). A frequently used version of CL, nanosphere lithography (NSL) employs organized 2D colloidal crystals with a hexagonal close-packed motif as an evaporation mask, often in combination with reactive ion etching. Evaporation through the holes between close-packed nanospheres defines the resulting pattern, and in many applications material deposition conditions such as evaporation angle or specific deposition technique (e.g., sputtering, thermal deposition) are used to vary the achieved patterns. With this method facile production of vast planar arrays of diverse nanostructures has been accomplished. [1][2][3][4][5][6][7][8] In an alternative approach, referred to here as sparse colloidal lithography (SCL), charged colloidal beads are utilized in a similar manner as in NSL. [9,10] This method, developed in our group, enables facile production of large areas (several cm 2 ) of nanoscopic features like holes in thin films, disc-, ringand crescent-shaped structures with overall sizes currently down to 20 nm and which occupy 10 to 50 % of the total surface area. [11][12][13][14][15][16] The size distribution of SCL-fabricated nanostructures is largely determined by the size dispersions of the masking colloids and is typically less than 5 % for colloids with average diameters > 100 nm and up to 10 % for smaller colloids. In contrast to NSL, a sparse monolayer of colloidal particles defines the evaporation/etch mask in SCL. The convenience of this technique, employing charged polystyrene (PS) nanoparticles as etch and/or evaporation mask, has recently been demonstrated in a variety of applications such as investigation of fibroblast response to nanotopography, [17] model catalysts of Pt/alumina and Pt/ceria [18] and in the study of optical properties of macroscopic arrays of supported metallic nanostructures like discs, crescents, or rings or nanoholes in optically thin films. [11,13,14,16] In spite of the general advantage of facile bottom-up nanofabrication and a large variety of possible nanostructural motifs, SCL has so far been subject to limitations in producing nanostructures composed of materials with unfavourable etching selectivity, that is, where the substrate or polystyrene etch rates compete with the etch rate of the actual materials of the nanostructure. Examples of such systems are Pt on Au or Au-silica hybrid structures on glass. Another disadvantage of the method is the necessity of the reactive oxygen treatment for the PS mask removal so that nanostructures composed of the materials prone to oxidation (like Ag or Ru) rap...

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“…6 -9 SERRS has also been shown to permit the in situ detection of analytes within a matrix. 10,11 Until recently very few specific labels were available, but recently a range of dyes containing the benzotriazole group were synthesized and the dyes shown to be effective labels for SERRS. 12 -15 The benzotriazole group works by forming a polymeric complex with the silver ions present on the silver surface, ensuring very strong chemisorption.…”

Section: Introductionmentioning

confidence: 99%

Benzotriazole rhodamine B: effect of adsorption on surface-enhanced resonance Raman scattering

McCabe

Graham

McKeown

et al. 2005

J. Raman Spectrosc.

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Polymer films developed for distance detection, containing dye-coated silver particles for ultra-sensitive analysis using surf ace-enhanced resonance Raman scattering (SERRS), identified the need for effective SERRS labels that interact strongly with the metal surfaces. Many dyes that are currently used for SERRS can be displaced from the surface owing to the relatively weak surface attachment, and therefore they do not adhere strongly enough to the surface for many practical applications, i.e. to withstand incorporation into environments such as paints, resins and polymers. Rhodamine dyes are very effective in SERRS under ideal laboratory conditions, as shown by the detection of single molecules. The synthesis of 19-[4-(benzotriazole-5-ylsulfamoyl)-2-methylphenyl]-6-diethylaminoxanthen-3-ylidene]diethylammonium (benzotriazole rhodamine B, BTRB), which was designed to give much stronger surface adhesion, was evaluated using SERRS in comparison with two commercially available rhodamine dyes, rhodamine 6G and rhodamine B. The increased strength of interaction with the roughened metal surface was shown to increase the versatility of BTRB in terms of the choice of aggregating agent and also the type of sample prepared. Therefore, the modification of rhodamine dyes to incorporate a benzotriazole group widens the range of practical applications for which they are suitable for detection using SERRS

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Remote Detection Using Surface-Enhanced Resonance Raman Scattering

Cited by 14 publications

References 37 publications

Surface-Enhanced Raman Scattering (SERS) and Surface-Enhanced Resonance Raman Scattering (SERRS): A Review of Applications

Surface-Enhanced Raman Scattering (SERS) and Surface-Enhanced Resonance Raman Scattering (SERRS): A Review of Applications

Hole–Mask Colloidal Lithography

Benzotriazole rhodamine B: effect of adsorption on surface-enhanced resonance Raman scattering

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