Siderophore-inspired nanoparticle-based biosensor for the selective detection of Fe3+

2015 ◽  
Vol 3 (2) ◽  
pp. 270-275 ◽  
Author(s):  
Daniel J. Phillips ◽  
Gemma-Louise Davies ◽  
Matthew I. Gibson
Keyword(s):  
Au Nanoparticles ◽  
Optical Response ◽  
Selective Detection

Au nanoparticles modified with catechol-functionalised polymers provide a strong optical response which is highly specific to Fe3+ ions at physiologically relevant concentrations.

scholarly journals Plasmonic response and SERS modulation in electrochemical applied potentials

2017 ◽  
Vol 205 ◽  
pp. 537-545 ◽  
Author(s):  
G. Di Martino ◽  
V. A. Turek ◽  
C. Tserkezis ◽  
A. Lombardi ◽  
A. Kuhn ◽  
...  
Keyword(s):  
Applied Voltage ◽  
Au Nanoparticles ◽  
Electrochemical Cell ◽  
Optical Response ◽  
Electronic Interaction ◽  
Raman Amplification ◽  
Electrode Surfaces ◽  
Au Film

We study the optical response of individual nm-wide plasmonic nanocavities using a nanoparticle-on-mirror design utilised as an electrode in an electrochemical cell. In this geometry Au nanoparticles are separated from a bulk Au film by an ultrathin molecular spacer, giving intense and stable Raman amplification of 100 molecules. Modulation of the plasmonic spectra and the SERS response is observed with an applied voltage under a variety of electrolytes. Different scenarios are discussed to untangle the various mechanisms that can be involved in the electronic interaction between NPs and electrode surfaces.

Durian-like multi-functional Fe3O4–Au nanoparticles: synthesis, characterization and selective detection of benzidine

2013 ◽  
Vol 1 (34) ◽  
pp. 9746 ◽  
Author(s):  
Zhijiang Wang ◽  
Lina Wu ◽  
Fuping Wang ◽  
Zhaohua Jiang ◽  
Baozhong Shen
Keyword(s):  
Au Nanoparticles ◽  
Selective Detection ◽  
Nanoparticles Synthesis

A label-free electrochemical aptasensor based on leaf-like vanadium disulfide-Au nanoparticles for the sensitive and selective detection of platelet-derived growth factor BB

2015 ◽  
Vol 7 (19) ◽  
pp. 8277-8284 ◽  
Author(s):  
Xue Liu ◽  
Hong-Lei Shuai ◽  
Ke-Jing Huang
Keyword(s):  
Growth Factor ◽  
Hydrothermal Method ◽  
Au Nanoparticles ◽  
Platelet Derived Growth Factor ◽  
Sensitive Detection ◽  
Selective Detection ◽  
Label Free ◽  
Electrochemical Aptasensor ◽  
Facile Hydrothermal Method

In this work, an electrochemical aptasensor for the sensitive detection of platelet-derived growth factor BB (PDGF-BB) is fabricated based on leaf-like VS2 nanosheets which are prepared by a facile hydrothermal method.

scholarly journals Tuning the optical response of cross-linked Fe@Au nanoparticles

2020 ◽  
Vol 514 ◽  
pp. 145921
Author(s):  
Najme Ahmadi ◽  
Reza Poursalehi ◽  
Andrei Kirilyuk ◽  
Mohammad Kazem Moravvej-Farshi
Keyword(s):  
Au Nanoparticles ◽  
Optical Response

Size- and Shape-Dependent Nonlinear Optical Response of Au Nanoparticles Embedded in Sapphire

2013 ◽  
Author(s):  
O. Sánchez-Dena ◽  
P. Mota-Santiago ◽  
L. Tamayo-Rivera ◽  
A. Crespo-Sosa ◽  
A. Oliver ◽  
...  
Keyword(s):  
Nonlinear Optical ◽  
Au Nanoparticles ◽  
Optical Response ◽  
Nonlinear Optical Response ◽  
Size And Shape
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