Chemical Redox-Modulated Etching of Plasmonic Nanoparticles for Nitrite Detection: Comparison Among Gold Nanosphere, Nanorod, and Nanotriangle

Author(s):  
Zhiyu He ◽  
Lan Zhang ◽  
Guanhua Peng ◽  
Guoqing Wang ◽  
Xingguo Liang
2021 ◽  
Vol 22 (12) ◽  
pp. 6372
Author(s):  
Marta d’Amora ◽  
Vittoria Raffa ◽  
Francesco De Angelis ◽  
Francesco Tantussi

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.


2021 ◽  
Vol 141 ◽  
pp. 110726
Author(s):  
Muheeb Ahmad Alkhalayfeh ◽  
Azlan Abdul Aziz ◽  
Mohd Zamir Pakhuruddin

Author(s):  
Muheeb Ahmad Alkhalayfeh ◽  
Azlan Abdul Aziz ◽  
Mohd Zamir Pakhuruddin ◽  
Khadijah Mohammedsaleh M. Katubi

Nanophotonics ◽  
2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Shulei Li ◽  
Mingcheng Panmai ◽  
Shaolong Tie ◽  
Yi Xu ◽  
Jin Xiang ◽  
...  

Abstract Metasurfaces composed of regularly arranged and deliberately oriented metallic nanoparticles can be employed to manipulate the amplitude, phase and polarization of an incident electromagnetic wave. The metasurfaces operating in the visible to near infrared spectral range rely on the modern fabrication technologies which offer a spatial resolution beyond the optical diffraction limit. Although direct laser writing is an alternative to the fabrication of nanostructures, the achievement of regular nanostructures with deep-subwavelength periods by using this method remains a big challenge. Here, we proposed and demonstrated a novel strategy for regulating disordered plasmonic nanoparticles into nanogratings with deep-subwavelength periods and reshaped nanoparticles by using femtosecond laser pulses. The orientations of the nanogratings depend strongly on the polarization of the femtosecond laser light. Such nanogratings exhibit reflection and polarization control over the reflected light, enabling the realization of polarization sensitive optical memory and color display with high spatial resolution and good chromacity.


2021 ◽  
Author(s):  
Fatima Douma ◽  
Louwanda Lakiss ◽  
Oleg I. Lebedev ◽  
Julien Cardin ◽  
Krassimir L. Kostov ◽  
...  

Herein, we report a new strategy for preparing connected silver sub-nanoparticles with unique optical behavior via a selective photo-assisted electrochemical reduction of silver cations in FAU-type zeolite X (FAUX) cages....


Nanoscale ◽  
2021 ◽  
Author(s):  
Matthew Pelton ◽  
S. David Storm ◽  
Haixu Leng

Correction for ‘Strong coupling of emitters to single plasmonic nanoparticles: exciton-induced transparency and Rabi splitting’ by Matthew Pelton et al., Nanoscale, 2019, 11, 14540–14552, DOI: 10.1039/C9NR05044B.


ACS Nano ◽  
2021 ◽  
Vol 15 (4) ◽  
pp. 6276-6288
Author(s):  
Sarah A. Lindley ◽  
Qi An ◽  
William A. Goddard ◽  
Jason K. Cooper

2019 ◽  
Vol 21 (19) ◽  
pp. 10146-10151
Author(s):  
Dániel Péter Szekrényes ◽  
Szilárd Pothorszky ◽  
Dániel Zámbó ◽  
András Deák

Spatial arrangement of self-assembled gold nanosphere/nanorod heterodimers and their reorgaization upon drying detected using polarization-resolved scattering spectroscopy.


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