scholarly journals Toxicological Profile of Plasmonic Nanoparticles in Zebrafish Model

2021 ◽  
Vol 22 (12) ◽  
pp. 6372
Author(s):  
Marta d’Amora ◽  
Vittoria Raffa ◽  
Francesco De Angelis ◽  
Francesco Tantussi
Keyword(s):  
Surface Plasmon Resonance ◽  
Adverse Effects ◽  
Physicochemical Properties ◽  
Surface Plasmon ◽  
Danio Rerio ◽  
Plasmonic Nanoparticles ◽  
Comprehensive Understanding ◽  
Zebrafish Model ◽  
Toxicological Profile ◽  
Materials Used

Plasmonic nanoparticles are increasingly employed in several fields, thanks to their unique, promising properties. In particular, these particles exhibit a surface plasmon resonance combined with outstanding absorption and scattering properties. They are also easy to synthesize and functionalize, making them ideal for nanotechnology applications. However, the physicochemical properties of these nanoparticles can make them potentially toxic, even if their bulk metallic forms are almost inert. In this review, we aim to provide a more comprehensive understanding of the potential adverse effects of plasmonic nanoparticles in zebrafish (Danio rerio) during both development and adulthood, focusing our attention on the most common materials used, i.e., gold and silver.

scholarly journals Recent Advances of Plasmonic Nanoparticles and their Applications

Materials ◽  
2018 ◽  
Vol 11 (10) ◽  
pp. 1833 ◽  
Author(s):  
Jianxun Liu ◽  
Huilin He ◽  
Dong Xiao ◽  
Shengtao Yin ◽  
Wei Ji ◽  
...  
Keyword(s):  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Metallic Nanoparticles ◽  
Upconversion Luminescence ◽  
Plasmonic Nanoparticles ◽  
Metal Nanostructures ◽  
Recent Advances ◽  
Past Half Century ◽  
Past Half

In the past half-century, surface plasmon resonance in noble metallic nanoparticles has been an important research subject. Recent advances in the synthesis, assembly, characterization, and theories of traditional and non-traditional metal nanostructures open a new pathway to the kaleidoscopic applications of plasmonics. However, accurate and precise models of plasmon resonance are still challenging, as its characteristics can be affected by multiple factors. We herein summarize the recent advances of plasmonic nanoparticles and their applications, particularly regarding the fundamentals and applications of surface plasmon resonance (SPR) in Au nanoparticles, plasmon-enhanced upconversion luminescence, and plasmonic chiral metasurfaces.

scholarly journals Improved Photoresponse of UV Photodetectors by the Incorporation of Plasmonic Nanoparticles on GaN Through the Resonant Coupling of Localized Surface Plasmon Resonance

2020 ◽  
Vol 12 (1) ◽  
Author(s):  
Sundar Kunwar ◽  
Sanchaya Pandit ◽  
Jae-Hun Jeong ◽  
Jihoon Lee
Keyword(s):  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Localized Surface Plasmon Resonance ◽  
Plasmonic Nanoparticles ◽  
Localized Surface Plasmon ◽  
Strong Light ◽  
Resonant Coupling ◽  
Uv Photodetectors ◽  
Bimetallic Alloy

AbstractVery small metallic nanostructures, i.e., plasmonic nanoparticles (NPs), can demonstrate the localized surface plasmon resonance (LSPR) effect, a characteristic of the strong light absorption, scattering and localized electromagnetic field via the collective oscillation of surface electrons upon on the excitation by the incident photons. The LSPR of plasmonic NPs can significantly improve the photoresponse of the photodetectors. In this work, significantly enhanced photoresponse of UV photodetectors is demonstrated by the incorporation of various plasmonic NPs in the detector architecture. Various size and elemental composition of monometallic Ag and Au NPs, as well as bimetallic alloy AgAu NPs, are fabricated on GaN (0001) by the solid-state dewetting approach. The photoresponse of various NPs are tailored based on the geometric and elemental evolution of NPs, resulting in the highly enhanced photoresponsivity of 112 A W−1, detectivity of 2.4 × 1012 Jones and external quantum efficiency of 3.6 × 104% with the high Ag percentage of AgAu alloy NPs at a low bias of 0.1 V. The AgAu alloy NP detector also demonstrates a fast photoresponse with the relatively short rise and fall time of less than 160 and 630 ms, respectively. The improved photoresponse with the AgAu alloy NPs is correlated with the simultaneous effect of strong plasmon absorption and scattering, increased injection of hot electrons into the GaN conduction band and reduced barrier height at the alloy NPs/GaN interface.

Thermal degradation of optical resonances in plasmonic nanoparticles

Nanoscale ◽  
2021 ◽  
Author(s):  
Lasse K. Sørensen ◽  
Daniil E. Khrennikov ◽  
Valeriy S. Gerasimov ◽  
Alexander E. Ershov ◽  
Maxim A. Vysotin ◽  
...  
Keyword(s):  
Surface Plasmon Resonance ◽  
Thermal Degradation ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Phonon Scattering ◽  
Plasmonic Nanoparticles ◽  
Radial Dependence ◽  
Temperature Growth ◽  
Optical Resonances ◽  
Electron Phonon Scattering

We have shown that suppression of the surface plasmon resonance in nanoparticle is associated with increase of the atom mobility in crystal lattice with strong radial dependence accompanied by electron-phonon scattering upon the temperature growth.

Thermoresponsive plasmonic core–satellite nanostructures with reversible, temperature sensitive optical properties

Nanoscale ◽  
2018 ◽  
Vol 10 (9) ◽  
pp. 4284-4290 ◽  
Author(s):  
Fei Han ◽  
S. R. C. Vivekchand ◽  
Alexander H. Soeriyadi ◽  
Yuanhui Zheng ◽  
J. Justin Gooding
Keyword(s):  
Optical Properties ◽  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Plasmonic Nanoparticles ◽  
Temperature Sensitive

Herein is described plasmonic nanoparticles assembled into core–satellite nanostructures that exhibit dynamic and reversible tuning of the surface plasmon resonance.

Comparison of sensitivity of the refractometric methods of frustrated total internal reflection and surface plasmon resonance

2020 ◽  
pp. 44-49
Author(s):  
I. N. Pavlov
Keyword(s):  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Total Internal Reflection ◽  
Resonance Method ◽  
Internal Reflection ◽  
Optical Methods ◽  
Thin Boundary Layer ◽  
Experimental Conditions ◽  
Frustrated Total Internal Reflection

Two optical methods, namely surface plasmon resonance imaging and frustrated total internal reflection, are described in the paper in terms of comparing their sensitivity to change of refractive index of a thin boundary layer of an investigated medium. It is shown that, despite the fact that the theoretically calculated sensitivity is higher for the frustrated total internal reflection method, and the fact that usually in practice the surface plasmon resonance method, on the contrary, is considered more sensitive, under the same experimental conditions both methods show a similar result.

Surface Plasmon Resonance Based Sensitive Immunosensor for Benzaldehyde Detection

2010 ◽  
Vol 130 (7) ◽  
pp. 269-274 ◽  
Author(s):  
Takeshi Onodera ◽  
Takuzo Shimizu ◽  
Norio Miura ◽  
Kiyoshi Matsumoto ◽  
Kiyoshi Toko
Keyword(s):  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance
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