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A surface plasmon resonance study on the optical properties of gold nanoparticles on thin gold films
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In this paper, the optical properties of gold nanoparticles assembled as thin films of different thickness were investigated using surface plasmon resonance (SPR) spectroscopy and atomic force microscopy.Abstract:
We report on an investigation of the optical properties of gold nanoparticles assembled as thin films of different thickness. The nanoparticles were linked to the surface of a gold chip by dithiol reagents and studied by surface plasmon resonance (SPR) spectroscopy and atomic force microscopy. There is good correlation between the experimental findings and theoretical simulation, and the respective data reveal the presence of ordered nanostructures in the assemblies. The shift in the SPR angle is linearly dependent on the particle size and the ratio of the different particles. SPR spectroscopy also reveals important information in terms of the optical constants of such films. This shall be further applied to in-situ quality control in the fabrication of optoelectronic, solar cell and semiconductor devices.read more
Citations
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Engineered gold nanoparticles for photothermal cancer therapy and bacteria killing
TL;DR: Gold nanoparticles with a high light-to-heat conversion capability are among the most important candidates for PTT, and the current status of GNPs in the photothermal treatment of cancer and bacterial conditions is discussed.
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In situ synthesis of gold nanoparticles using fique natural fibers as template
TL;DR: In this article, gold nanoparticles were synthesized on the surface of natural fique fibers extracted from the leaves of Furcraea spp., a plant native to the Andean mountains in Colombia.
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Sensitive immunosensing of squamous cell carcinoma antigen based on a nanocomposite of poly{3-amine-N-[3-(N-pyrrole)propyl]imidazole bromide} ionic liquid and gold nanoroots
TL;DR: It was found that poly(APPIBr)/AuNRs nanointerface can improve the sensing performance of the immunosensor, and was demonstrated its capability in quantitative analysis of squamous cell carcinoma antigen in human serum.
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Signal amplification and dual recognition strategy for small-molecule detection by surface plasmon resonance based on calix[4]arene crown ether-modified gold nanoparticles
TL;DR: In this paper, a signal-enhanced surface plasmon resonance (SPR) platform for the highly sensitive detection of dopamine was designed based on the specific recognition of boronic acid to diol and that of calix[4]arene crown ether-modified gold nanoparticles (CAL[4]-AuNPs).
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Development of multifunctional gold, copper, zinc, niobium containing MCF catalysts – Surface properties and activity in methanol oxidation
TL;DR: In this article, the main focus was on the study of the interactions between elements introduced to the catalysts and their role in the surface and catalytic properties in order to new understanding of catalysts addressed to oxidation of alcohols.
References
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Journal ArticleDOI
Gold nanoparticles: assembly, supramolecular chemistry, quantum-size-related properties, and applications toward biology, catalysis, and nanotechnology.
TL;DR: A review of gold nanoparticles can be found in this article, where the most stable metal nanoparticles, called gold colloids (AuNPs), have been used for catalysis and biology applications.
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Size and temperature dependence of the plasmon absorption of colloidal gold nanoparticles
Stephan Link,Mostafa A. El-Sayed +1 more
TL;DR: In this paper, the size and temperature dependence of the plasmon absorption of 9, 15, 22, 48, and 99 nm gold nanoparticles in aqueous solution were studied.
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Seeding Growth for Size Control of 5−40 nm Diameter Gold Nanoparticles
TL;DR: In this paper, gold nanoparticles of diameters 5−40 nm were prepared with 10−15% standard deviation in diameter from 3.5 ± 0.7 nm gold particle seeds.
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A self-assembled monolayer for the binding and study of histidine-tagged proteins by surface plasmon resonance.
TL;DR: Surface plasmon resonance studies showed that His-tagged proteins adsorbed on the NTA-SAM retained a greater ability to participate in binding interactions with proteins in solution than protein immobilized in a thin dextran gel layer by covalent coupling.
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Ultrasensitive Immunosensor for Cancer Biomarker Proteins using Gold Nanoparticle Film Electrodes and Multienzyme-Particle Amplification
Vigneshwaran Mani,Bhaskara V. Chikkaveeraiah,Vyomesh Patel,J. Silvio Gutkind,James F. Rusling +4 more
TL;DR: These easily fabricated AuNP immunosensors show excellent promise for future fabrication of bioelectronic arrays, and near or below the normal serum levels of most cancer biomarkers.