SERS Platforms of Plasmonic Hydrophobic Surfaces for Analyte Concentration: Hierarchically Assembled Gold Nanorods on Anodized Aluminum

2014 ◽  
Vol 31 (11) ◽  
pp. 1134-1140 ◽  
Author(s):  
Moritz Tebbe ◽  
Pavel Cherepanov ◽  
Ekaterina V. Skorb ◽  
Sergey K. Poznyak ◽  
Javier García de Abajo ◽  
...  
Keyword(s):  
Gold Nanorods ◽  
Analyte Concentration ◽  
Hydrophobic Surfaces ◽  
Anodized Aluminum

Computer Simulation of the Response of Amperometric Biosensors in Stirred and non Stirred Solution

2003 ◽  
Vol 8 (1) ◽  
pp. 3-18 ◽  
Author(s):  
R. Baronas ◽  
F. Ivanauskas ◽  
J. Kulys
Keyword(s):  
Mathematical Model ◽  
Computer Simulation ◽  
Finite Difference ◽  
Mass Transport ◽  
Enzyme Reaction ◽  
Analyte Concentration ◽  
Amperometric Biosensors ◽  
Finite Difference Technique ◽  
Enzyme Layer ◽  
Biosensor Response

A mathematical model of amperometric biosensors has been developed to simulate the biosensor response in stirred as well as non stirred solution. The model involves three regions: the enzyme layer where enzyme reaction as well as mass transport by diffusion takes place, a diffusion limiting region where only the diffusion takes place, and a convective region, where the analyte concentration is maintained constant. Using computer simulation the influence of the thickness of the enzyme layer as well the diffusion one on the biosensor response was investigated. The computer simulation was carried out using the finite difference technique.

Synthesis and Characterization of Polydopamine-Coated Gold Nanorods

2017 ◽  
Vol 62 (1-2) ◽  
pp. 23-31
Author(s):  
L.C. Şuşu ◽  
◽  
A.M. Crăciun ◽  
S. Aştilean ◽  
◽  
...  
Keyword(s):  
Gold Nanorods ◽  
Synthesis And Characterization

Time response of anodized aluminum pressure-sensitive paint

AIAA Journal ◽  
2001 ◽  
Vol 39 ◽  
pp. 1944-1949
Author(s):  
Hirotaka Sakaue ◽  
John P. Sullivan
Keyword(s):  
Time Response ◽  
Pressure Sensitive Paint ◽  
Anodized Aluminum ◽  
Pressure Sensitive

Investigation of Polyoxometalate-(Poly)pyrrole Heterogeneous Nanostructures as Cathodes for Rechargeable Magnesium-Ion Batteries

2018 ◽  
Author(s):  
Hakeem K. Henry ◽  
Sang Bok Lee
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Photoelectron Spectroscopy ◽  
Active Material ◽  
Conductive Polymer ◽  
Current Collector ◽  
Constant Current ◽  
Anodized Aluminum ◽  
Transmission Electron ◽  
Pyrrole Monomer

The PMo<sub>12</sub>-PPy heterogeneous cathode was synthesized electrochemically. In doing so, the PMo<sub>12</sub> redox-active material was impregnated throughout the conductive polymer matrix of the poly(pyrrole) nanowires. All chemicals and reagents used were purchased from Sigma-Aldrich. Anodized aluminum oxide (AAO) purchased from Whatman served as the porous hard template for nanowire deposition. A thin layer of gold of approximately 200nm was sputtered onto the disordered side of the AAO membrane to serve as the current collector. Copper tape was connected to the sputtered gold for contact and the device was sealed in parafilm with heat with an exposed area of 0.32 cm<sup>2</sup> to serve as the electroactive area for deposition. All electrochemical synthesis and experiments were conducted using a Bio-Logic MPG2 potentiostat. The deposition was carried out using a 3-electrode beaker cell setup with a solution of acetonitrile containing 5mM and 14mM of the phosphomolybdic acid and pyrrole monomer, respectively. The synthesis was achieved using chronoamperometry to apply a constant voltage of 0.8V vs. Ag/AgCl (BASi) to oxidatively polymerize the pyrrole monomer to poly(pyrrole). To prevent the POM from chemically polymerizing the pyrrole, an injection method was used in which the pyrrole monomer was added to the POM solution only after the deposition voltage had already been applied. The deposition was well controlled by limiting the amount of charge transferred to 300mC. Following deposition, the AAO template was removed by soaking in 3M sodium hydroxide (NaOH) for 20 minutes and rinsed several times with water. After synthesis, all cathodes underwent electrochemical testing to determine their performance using cyclic voltammetry and constant current charge-discharge cycling in 0.1 M Mg(ClO<sub>4</sub>)<sub>2</sub>/PC electrolyte. The cathodes were further characterized using scanning electron microscopy (SEM), transmission electron microscopy (TEM), scanning transmission electron microscopy (STEM), and x-ray photoelectron spectroscopy (XPS).

Optical Properties and Biomedical Application of Gold Nanorods*

2009 ◽  
Vol 36 (11) ◽  
pp. 1402-1407 ◽  
Author(s):  
Mei LIU ◽  
Pei-Hui YANG ◽  
Ji-Ye CAI
Keyword(s):  
Optical Properties ◽  
Gold Nanorods ◽  
Biomedical Application

Plasmon-Enhanced Chemical Reaction at the Hot Spots of End-to-End Assembled Gold Nanorods

2020 ◽  
Vol 124 (5) ◽  
Author(s):  
Srimanta Pal ◽  
Anushree Dutta ◽  
Manideepa Paul ◽  
Arun Chattopadhyay
Keyword(s):  
Chemical Reaction ◽  
Gold Nanorods ◽  
Hot Spots ◽  
End To End
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