surface plasmon resonance – TechConnect Briefs

Numerical Modelling of a Sinusoidal Grating-Based Surface Plasmon Coupled Emission Biosensor

Sukhotskiy V., Cady N.C., Reddy I.V.A.K., Furlani E.P., University at Buffalo (SUNY), US

We present a full-wave computational model to study the optical behavior of a versatile sinusoidal grating-based surface plasmon-coupled emission (SPCE) biosensor. Surface plasmons (SPs) are coherent oscillations of conduction electrons on a metal surface excited [...]

Fabrication of Aptamer-Functionalized Gold Nanorod Biosensor for Colorimetric Detection of Lysozyme

Tohidi Moghadam T., Ranjbar B., Tarbiat Modares University, IR

Gold nanorods (GNRs) have been nominated as good candidates for biosensing, diagnostics, and imaging technologies. The wavelength dependence of the longitudinal surface plasmon resonance of gold nanorods on minute changes of refractive indexes makes them [...]

Combined utility of dynamic light scattering and surface plasmon resonance characteristics for drug nanocarrier systems

Ashrafpour S., Moghadam T.Tohidi, Ranjbar B., Tarbiat Modares University, IR

Study of plasmonic nanoparticles and their interaction with biomolecules has attracted great deal of attention due to potential utility in a wide variety of areas, such as drug nanocarrier systems. However, to enable full exploitation [...]

Novel Syntheses of Silica-Gold Core-Shell Particles

Cook M.J., Johnston J.H., Victoria University of Wellington, NZ

Methods for the synthesis of silica-gold core-shell particles presented in literature are not considered commercially viable due to various requirements: high reaction temperatures, the use of light-sensitive reagents, the use of ex-situ gold seeding adding [...]

Photocatalytic Performance of Cu/TiO2-xNx Nanotube Arrays Enhanced by Surface Plasmon Resonance and Application in Hydrogen Evolution by Water Splitting

Kang L., Liu E., Hu X., Fan J., Fan X., Wu F., Wu H., Fan J., Fan X., Hou W., Wu F., Wu H., Wang Q., Northwest University, CN

Studies revealed that noble metal (Au, Ag, Pd) nanoparticles can improve the photoresponse property of TiO2 in the visible region based on the surface plasmon resonance (SPR) effect, and enhance the activity of TiO2 photocatalyst. [...]

Photocatalytic Performance of Cu/TiO2-xNx Nanotube Arrays Enhanced by Surface Plasmon Resonance and Application in Hydrogen Evolution by Water Splitting

Kang L., Liu E., Hu X., Fan J., Fan X., Wu F., Wu H., Fan J., Fan X., Hou W., Wu F., Wu H., Wang Q., Northwest University, CN

Studies revealed that noble metal (Au, Ag, Pd) nanoparticles can improve the photoresponse property of TiO2 in the visible region based on the surface plasmon resonance (SPR) effect, and enhance the activity of TiO2 photocatalyst. [...]

Plasmonic nanodome array fabricated on plastic as a dual-mode surface plasmon resonance and surface-enhanced Raman scattering sensor

Choi C-J, Semancik S., National Institute of Standards and Technology, US

Label-free optical sensors have recently emerged as a highly sensitive approach for detecting a broad range of chemical and biological analytes that include illicit drug compounds, explosives, proteins, viruses, and bacteria.To best meet such diverse [...]

Monitoring nanoparticle growth in a microreactor by combined micro-SAXS and micro-Raman techniques

Reynolds M., Di Cola E., Sztucki M., Gourrier A., Montero C., Burghammer M., European Synchrotron Radiation Facility, FR

Noble metal nanoparticles have been extensively exploited in recent decades for their importance in fundamental science and their applications in biomedical therapeutics, catalysis and as a bottom-up approach to the production of ordered nanostructures. Key [...]

Multi-Parametric Surface Plasmon Resonance – A new technique to determine thickness and refractive index of thin and thick layers

Robinson M., Kuncova-Kallio J., Granqvist N., Sadowski J.W., BioNavis, LTD, US

Multi-Parametric(MP)-SPR empowers multidisciplinary research between life sciences and material sciences. Biochemists are moving from molecular-molecular interactions to molecule-material interactions, as seen in drug encapsulation or development of diagnostic kits. On the other hand, material science [...]

Nano-plamsonics Sensing and Integration with Microfluidics for a Lab-on-chip Biosensor

Wei J.J., Rexius M., Kofke M., Wang Y., Singhal S., Waldeck D.H., CFD Research Corporation, US

Ordered arrays of nanostructures in metal films have been studied for practical miniaturization of SPR sensing and microfluidic integration. We report a nanostructure array that is designed to permit significantly enhanced Extraordinary Optical Transmission (EOT) [...]