A PEGDA hydrogel nanocomposite to improve gold nanoparticles stability for novel plasmonic sensing platforms

2021 ◽  
Vol 129 (3) ◽  
pp. 033101
Author(s):  
B. Miranda ◽  
R. Moretta ◽  
S. De Martino ◽  
P. Dardano ◽  
I. Rea ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Plasmonic Sensing ◽  
Sensing Platforms ◽  
Nanoparticles Stability ◽  
Hydrogel Nanocomposite

PEGylated gold nanoparticles: Stability, cytotoxicity and antibacterial activity

2019 ◽  
Vol 560 ◽  
pp. 26-34 ◽  
Author(s):  
A. Reznickova ◽  
N. Slavikova ◽  
Z. Kolska ◽  
K. Kolarova ◽  
T. Belinova ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Antibacterial Activity ◽  
Nanoparticles Stability

Gold nanoparticles by soft UV nanoimprint lithography coupled to a lift-off process for plasmonic sensing of antibodies

2010 ◽  
Vol 87 (5-8) ◽  
pp. 1001-1004 ◽  
Author(s):  
G. Barbillon ◽  
F. Hamouda ◽  
S. Held ◽  
P. Gogol ◽  
B. Bartenlian
Keyword(s):  
Gold Nanoparticles ◽  
Nanoimprint Lithography ◽  
Plasmonic Sensing ◽  
Lift Off

scholarly journals A Hybrid Nanoplatform of Graphene Oxide/Nanogold for Plasmonic Sensing and Cellular Applications at the Nanobiointerface

2019 ◽  
Vol 9 (4) ◽  
pp. 676 ◽  
Author(s):  
Lorena Cucci ◽  
Irina Naletova ◽  
Giuseppe Consiglio ◽  
Cristina Satriano
Keyword(s):  
Gold Nanoparticles ◽  
Graphene Oxide ◽  
Microscopy Imaging ◽  
Human Neuroblastoma ◽  
Force Microscopy ◽  
Atomic Force ◽  
Plasmonic Sensing ◽  
One Step ◽  
Spherical Gold Nanoparticles ◽  
Species Production

In this study, nanocomposites of spherical gold nanoparticles (AuNPs) and graphene oxide (GO) nanosheets were fabricated by a simple one-step reduction method. The characterisation by UV-visible spectroscopy of the plasmonic sensing properties pointed out to a strong interaction between graphene and metal nanoparticles in the hybrid GO-AuNP, as confirmed by nuclear magnetic resonance. Moreover, atomic force microscopy analyses demonstrated that the gold nanoparticles were mostly confined to the basal planes of the GO sheets. The response of the nanoassemblies at the biointerface with human neuroblastoma SH-SY5Y cell line was investigated in terms of nanotoxicity as well as of total and mitochondrial reactive oxygen species production. Confocal microscopy imaging of cellular internalization highlighted the promising potentialities of GO-AuNP nanoplatforms for theranostic (i.e., sensing/imaging + therapy) applications.

scholarly journals Vertical Graphene Nanosheets Coated with Gold Nanoparticle Arrays: Effect of Interparticle Spacing on Optical Response

2015 ◽  
Vol 2015 ◽  
pp. 1-7 ◽  
Author(s):  
Angus Mcleod ◽  
Shailesh Kumar ◽  
Kristy C. Vernon ◽  
Kostya (Ken) Ostrikov
Keyword(s):  
Gold Nanoparticles ◽  
Theoretical Study ◽  
Graphene Nanosheets ◽  
Interparticle Spacing ◽  
Nanoparticle Arrays ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Optical Responses ◽  
Sensing Platforms ◽  
Graphene Structures

Vertical graphene nanosheets have advantages over their horizontal counterparts, primarily due to the larger surface area available in the vertical systems. Vertical sheets can accommodate more functional particles, and, due to the conduction and optical properties of thin graphene, these structures can find niche applications in the development of sensing and energy storage devices. This work is a combined experimental and theoretical study that reports on the synthesis and optical responses of vertical sheets decorated with gold nanoparticles. The findings help in interpreting optical responses of these hybrid graphene structures and are relevant to the development of future sensing platforms.

μ-near-zero metamaterial slabs for a new concept of plasmonic sensing platforms

2018 ◽  
Vol 117 ◽  
pp. 423-428 ◽  
Author(s):  
J.A. Girón-Sedas ◽  
Osvaldo N. Oliveira ◽  
J.R. Mejía-Salazar
Keyword(s):  
Plasmonic Sensing ◽  
Sensing Platforms
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