scholarly journals Gold Nanoparticles with Externally Controlled, Reversible Shifts of Local Surface Plasmon Resonance Bands

Langmuir ◽  
2009 ◽  
Vol 25 (22) ◽  
pp. 13120-13124 ◽  
Author(s):  
Mustafa S. Yavuz ◽  
Gary C. Jensen ◽  
David P. Penaloza ◽  
Thomas A. P. Seery ◽  
Samuel A. Pendergraph ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Local Surface ◽  
Local Surface Plasmon Resonance

Ellipsometric Advances for Local Surface Plasmon Resonance to Determine Chitosan Adsorption on Layer-By-Layer Gold Nanoparticles

2007 ◽  
Vol 61 (9) ◽  
pp. 1007-1014 ◽  
Author(s):  
Yen Hsun Su ◽  
Lay Gaik Teoh ◽  
Wei Hao Lai ◽  
Shih-Hui Chang ◽  
Hui-Chia Yang ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Polarized Light ◽  
Layer By Layer ◽  
Local Surface ◽  
Local Surface Plasmon Resonance ◽  
Ellipsometric Measurement ◽  
Au Nps

The ellipsometric measurement of local surface plasmon resonance (LSPR) caused by the adsorption of chitosan on layer-by-layer gold nanoparticles (Au NPs) was investigated. Six nanometer (6 nm) Au NPs were prepared and layer-by-layer Au NPs were fabricated to shift the LSPR to 520, 540, and 560 nm, respectively, due to the Mie theory. The thicknesses and the fractions of the layer-by-layer Au NPs were measured accurately using a combination of the Fresnel equation and the Maxwell–Garnett equations for ellipsometry. Furthermore, the position of the LSPR was shifted by chitosan. Using trajectory to record the trace of polarized light for ellipsometry resulting from LSPR, it was found that LSPR is predominantly induced when the LSPR position is close to the wavelength of the ellipsometric measurement. The trajectory circle of LSPR is very large for an increase of chitosan adsorption on Au NPs when the LSPR position is close to the detected wavelength. The linear approximation aspect quantifying the trajectory corresponds with the change of LSPR for the adsorption of chitosan, except for cases with low incidence and Brewster angles. The aspects and technologies of ellipsometry will benefit from the findings in this study, with potential applications in the fields of determination of molecular adsorption.

scholarly journals Vapour sensing properties of graphene-covered gold nanoparticles

2019 ◽  
Vol 1 (6) ◽  
pp. 2408-2415 ◽  
Author(s):  
Gábor Piszter ◽  
Krisztián Kertész ◽  
György Molnár ◽  
András Pálinkás ◽  
András Deák ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Local Surface ◽  
Local Surface Plasmon Resonance ◽  
Sensing Properties ◽  
Sensitivity And Selectivity

A corrugated graphene overlayer can increase the sensitivity and selectivity of local surface plasmon resonance-based vapour sensing with gold nanoparticles.

Propitious Immobilization of Gold Nanoparticles on Poly(dimethylsiloxane) Substrate for Local Surface Plasmon Resonance Based Biosensor

2012 ◽  
Vol 51 (3R) ◽  
pp. 037001 ◽  
Author(s):  
Nguyen Ba Trung ◽  
Hiroyuki Yoshikawa ◽  
Eiichi Tamiya ◽  
Pham Hung Viet ◽  
Yuzuru Takamura ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Local Surface ◽  
Local Surface Plasmon Resonance
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