Novel Silicon Dioxide Sol−Gel Films for Potential Sensor Applications:  A Surface Plasmon Resonance Study

Langmuir ◽  
2001 ◽  
Vol 17 (4) ◽  
pp. 1169-1175 ◽  
Author(s):  
Dev K. Kambhampati ◽  
Thomas A. M. Jakob ◽  
Joseph W. Robertson ◽  
Mei Cai ◽  
Jeanne E. Pemberton ◽  
...  
Keyword(s):  
Surface Plasmon Resonance ◽  
Silicon Dioxide ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Sol Gel ◽  
Sensor Applications ◽  
Sol Gel Films

Au and NiO nanoparticles dispersed inside porous SiO2 sol-gel film: correlation between localized surface plasmon resonance and structure upon thermal annealing

2012 ◽  
Vol 1449 ◽  
Author(s):  
Enrico Della Gaspera ◽  
Giovanni Mattei ◽  
Alessandro Martucci
Keyword(s):  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Thermal Evolution ◽  
Sol Gel ◽  
Localized Surface Plasmon ◽  
Surface Plasmon Resonance Peak ◽  
Nio Nanoparticles ◽  
Visible Absorption ◽  
Plasmon Resonance Peak

ABSTRACTThe favorable lattice matching between Au and NiO crystals made possible the growth of unique cookie-like nanoparticles (25 nm mean diameter) inside a porous SiO2 film after annealing at 700 °C. The unusual aggregates result from the coupling of well distinguishable Au and NiO hemispheres, which respectively face each other through the (100) and (200) lattice planes. The thermal evolution of the Au and NiO nanoparticles structure has been studied by high resolution transmission electron microscopy and UV-visible absorption spectroscopy and correlated with the evolution of the Au surface plasmon resonance peak.

Synthesis of Core@Shell Composites with Gold Nanoparticles Trapped inside Ceramic Silica Shells by the Sol-Gel Method

2008 ◽  
Vol 368-372 ◽  
pp. 797-799 ◽  
Author(s):  
Chien Jung Huang ◽  
Pin Hsiang Chiu ◽  
Yeong Her Wang
Keyword(s):  
Gold Nanoparticles ◽  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Amorphous Silica ◽  
Plasmon Resonance ◽  
Sol Gel ◽  
Silica Shell ◽  
Core Shell ◽  
Gold Core ◽  
Spherical Gold Nanoparticles

This paper describes a sol-gel (SG) method for the coating of gold nanoparticles with uniform shells of amorphous silica. The thickness of silica could be conveniently controlled in the range of 10 to 120 nm by increasing the amount of water. Although spherical gold nanoparticles generally have a surface plasmon resonance (SPR) at a wavelength of about 520 nm, a spherical gold core with a silica shell offers a very highly tunable SPR wavelength depending on the thickness of the silica shell.

Fabrication of Mesoporous Silica Thin Film Platforms for Surface Reaction with Surface Plasmon Resonance

2017 ◽  
Vol 758 ◽  
pp. 24-28 ◽  
Author(s):  
Sota Ushijima ◽  
Toshiyuki Ikoma
Keyword(s):  
Thin Films ◽  
Surface Plasmon Resonance ◽  
Mesoporous Silica ◽  
Cationic Surfactant ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Surface Reaction ◽  
Sol Gel ◽  
Silica Thin Films ◽  
Gold Substrates

Mesoporous silica thin films were fabricated on gold substrates with a sol-gel method including a cationic surfactant. The interface of gold and silica thin films was fixed with a mercaptosilane. The surface roughness of the thin films and their grain sizes of silica were both increased with the elimination of the cationic surfactant and polyethylene glycol (PEG) modification on its surface. The surface reaction, adsorption of bovine serum albumin (BSA), was monitored with surface plasmon resonance (SPR). Although the adsorption amount of BSA at 1 mg/mL were 7.9 ng/cm2 on the mesoporous silica, the PEG modification can completely desorb BSA. The mesoporous silica thin films on gold substrates fabricated will be a good platform for analyzing surface reaction.

Phase properties of a surface-plasmon resonance from the viewpoint of sensor applications

1998 ◽  
Vol 28 (5) ◽  
pp. 444-448 ◽  
Author(s):  
V E Kochergin ◽  
A A Beloglazov ◽  
M V Valeiko ◽  
P I Nikitin
Keyword(s):  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Sensor Applications ◽  
Phase Properties

Optical properties of sol–gel fabricated Mn/SiO2 nanocomposites: Observation of surface plasmon resonance in Mn nanoparticles

2008 ◽  
Vol 254 (9) ◽  
pp. 2736-2742 ◽  
Author(s):  
Oleg A. Yeshchenko ◽  
Igor M. Dmitruk ◽  
Alexandr A. Alexeenko ◽  
Andriy M. Dmytruk
Keyword(s):  
Optical Properties ◽  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Sol Gel ◽  
Sio2 Nanocomposites
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