Implantation of plasmonic nanoparticles in SiO2 by pulsed laser irradiation of gold films on SiO -coated fused silica and subsequent thermal annealing

Stolzenburg, Hannah; Peretzki, Patrick; Wang, N.; Ihlemann, J.

doi:10.1016/j.apsusc.2015.10.092

Cited by 6 publications

(2 citation statements)

References 22 publications

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“…As seen in Figure 8, the implantation starts at the high intensity positions, but during further pulses the particles seem to be somehow transferred in direction to the non-irradiated area. A similar behavior of lateral displacement is observed when going from low to high fluences [46]. There it is explained by reablation of particles at high irradiation dose and redistribution or displacement of particles to the side areas.…”

Section: Discussionsupporting

confidence: 66%

Excimer Laser Induced Spatially Resolved Formation and Implantation of Plasmonic Particles in Glass

et al. 2018

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Metallic nanoparticles are important building blocks for plasmonic applications. The spatially defined arrangement of these nanoparticles in a stable glass matrix is obtained here by nanosecond excimer laser irradiation at 193 nm. Two approaches are addressed: (1) Laser induced formation of particles from a dopant material pre-incorporated in the glass, (2) Particle formation and implantation by irradiation of material pre-coated on top of the glass. Silver nanoparticles are formed inside Ag+ doped glass (method 1). Gold nanoparticles are implanted by irradiation of gold coated glass (method 2). In the latter case, with a few laser pulses the original gold film disintegrates into particles which are then embedded in the softened glass matrix. A micron sized spatial resolution (periodic arrangements with 2 µm period) is obtained in both cases by irradiating the samples with an interference beam pattern generated by a phase mask. The plasmonic absorption of the nanoparticles leads to a contrast of the optical density between irradiated and non-irradiated lines of up to 0.6.

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Section: Discussionsupporting

confidence: 66%

Excimer Laser Induced Spatially Resolved Formation and Implantation of Plasmonic Particles in Glass

et al. 2018

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“…Besides, MTT is based on colorimetric assay and optical properties attributed to the wavelength performance 26 . Moreover, the optical and plasmonic properties of silica resonance increase in the wavelength range of MTT as increasing light absorption with time increases 27 , 28 . This study aimed to investigate the interference effect of SiO 2 NPs, their concentrations on MTT assay, and its modeling using regression and ANN model.…”

Section: Introductionmentioning

confidence: 99%

The synergistic interference effect of silica nanoparticles concentration and the wavelength of ELISA on the colorimetric assay of cell toxicity

Abbasi

Hashemi

Samaei

et al. 2021

Sci Rep

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The 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay is the most common method for the determination of cell toxicity, but some factors limit the sensitivity of this method, such as pH. Less attention had been paid to the interference effect of optical and plasmonic properties of SiO2 nanoparticles (NPs) in the wavelength range assigned to MTT. This study investigated the synergistic interference effect of SiO2 NPs and wavelength on MTT assay for the first time. The examined variables included the type of SiO2 NPs concentrations (1, 10, and 100 mM) and different wavelengths (470, 490, 520, and 570 nm). The results showed that optical density (OD) increased (p < 0.05) when wavelength and the concentration of crystalline SiO2 NPs increased. So, the maximum OD at 10 and 100 mM were attributed to crystalline SiO2 NPs (p < 0.05) due to the functional group, whereas it was related to amorphous at 1 mM (p > 0.05). According to polynomial regression modeling (PRM), the maximum interference effect was predicted at crystalline SiO2 NPs and wavelength > 550 nm. Besides, the synergistic effects of SiO2 NPs, wavelength, and concentration of NPs had been a good fitting with first-order PRM. Thus, the concentration of SiO2 NPs had a confounder factor in colorimetric for MTT assay. The best artificial neural network (ANN) structure was related to the 3:7:1 network (Rall = 0.936, MSE = 0.0006, MAPE = 0.063). The correlation between the actual and predicted data was 0.88. As SiO2 NPs presence is an interfering factor in MTT assay concerning wavelength, it is suggested wavelength use with minimum confounding effect for MTT assay.

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Photoluminescence enhancement of silicon nanocrystals by excimer laser implanted gold nanoparticles

Richter

Ihlemann²

2022

Appl. Phys. A

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Implantation of plasmonic nanoparticles in SiO2 by pulsed laser irradiation of gold films on SiO -coated fused silica and subsequent thermal annealing

Cited by 6 publications

References 22 publications

Excimer Laser Induced Spatially Resolved Formation and Implantation of Plasmonic Particles in Glass

Excimer Laser Induced Spatially Resolved Formation and Implantation of Plasmonic Particles in Glass

The synergistic interference effect of silica nanoparticles concentration and the wavelength of ELISA on the colorimetric assay of cell toxicity

Photoluminescence enhancement of silicon nanocrystals by excimer laser implanted gold nanoparticles

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