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Stable silver/biopolymer hybrid plasmonic nanostructures for high performance surface enhanced Raman scattering (SERS).

Stable silver/biopolymer hybrid plasmonic nanostructures for high performance surface enhanced Raman scattering (SERS).

Journal of nanoscience and nanotechnology (2013-07-26)

Jaya Sundaram, Bosoon Park, Yongkuk Kwon

ABSTRACT

Silver/biopolymer nanoparticles were prepared by adding 100 mg silver nitrate to 2% polyvinyl alcohol solution and reduced the silver nitrate using 2% trisodium citrate for high performance Surface Enhanced Raman Scattering (SERS) substrates. Optical properties of nanoparticle were measured using UV/VIS spectroscopy and hyperspectral imaging microscopy. Nanoparticle morphology was analyzed using transmission electron microscopy. Substrate reproducibility and repeatability was checked by measuring SERS signals of trans-1,2-bis(4-pyridyl)ethylene (BPE) and Rhodamine 6G.

MATERIALS

Product Number

Brand

Product Description

Sigma-Aldrich

Rhodamine 6G, suitable for fluorescence, BioReagent

Sigma-Aldrich

Silver nanowires, diam. × L 50 nm × 6 μm, 0.5% (isopropyl alcohol suspension)

Sigma-Aldrich

Silver, conductive paste

Sigma-Aldrich

Silver, colloidal, 65-75% Ag basis

Sigma-Aldrich

Silver, wire, diam. 0.1 mm, 99.9% trace metals basis

Sigma-Aldrich

Silver, nanopowder, <150 nm particle size, 99% trace metals basis

Sigma-Aldrich

Rhodamine 6G perchlorate, Dye content 99 %

Sigma-Aldrich

Silver, shot, 1-3 mm, ≥99.99% trace metals basis

Sigma-Aldrich

Silver, wire, diam. 1.0 mm, 99.9% trace metals basis

Sigma-Aldrich

Silver, wire, diam. 0.5 mm, ≥99.99% trace metals basis

Sigma-Aldrich

Silver, wire, diam. 1.0 mm, ≥99.99% trace metals basis

Sigma-Aldrich

Silver, foil, thickness 2.0 mm, 99.9% trace metals basis

Sigma-Aldrich

Silver, powder, <250 μm, 99.99% trace metals basis

Sigma-Aldrich

Silver, wool, diam. 0.05 mm, ≥99.9% trace metals basis

Sigma-Aldrich

Silver, wire, diam. 0.127 mm, 99.99% trace metals basis

Sigma-Aldrich

Silver, foil, thickness 0.1 mm, 99.9% trace metals basis

Sigma-Aldrich

Silver, foil, thickness 1.0 mm, 99.99% trace metals basis

Sigma-Aldrich

Rhodamine 6G, Dye content 99 %

Sigma-Aldrich

Silver nanowires, diam. × L 100 nm × 6 μm, 0.5% (isopropyl alcohol suspension)

Sigma-Aldrich

Rhodamine 6G, Dye content ~95 %

Supelco

Rhodamine 6G, analytical standard

Sigma-Aldrich

Silver, nanopowder, <100 nm particle size, contains PVP as dispersant, 99.5% trace metals basis

Sigma-Aldrich

Silver, wire, diam. 2.0 mm, 99.9% trace metals basis

Sigma-Aldrich

Silver, foil, thickness 0.25 mm, 99.9% trace metals basis

Sigma-Aldrich

Silver, wire, diam. 1.5 mm, ≥99.99% trace metals basis

Sigma-Aldrich

Silver, powder, <45 μm, ≥99.99% trace metals basis

Sigma-Aldrich

Silver, wire, diam. 0.25 mm, ≥99.99% trace metals basis

Sigma-Aldrich

Silver, wire, diam. 0.5 mm, 99.9% trace metals basis

Sigma-Aldrich

Silver, powder, 2-3.5 μm, ≥99.9% trace metals basis

Sigma-Aldrich

Silver, flakes, 10 μm, ≥99.9% trace metals basis