Ferric ion immobilized on three-dimensional nanoporous gold films modified with self-assembled monolayers for electrochemical detection of hydrogen peroxide

The Analyst ◽  
2012 ◽  
Vol 137 (5) ◽  
pp. 1182 ◽  
Author(s):  
Min Zheng ◽  
Pan Li ◽  
Chen Yang ◽  
Hui Zhu ◽  
Yu Chen ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Electrochemical Detection ◽  
Three Dimensional ◽  
Nanoporous Gold ◽  
Self Assembled Monolayers ◽  
Gold Films ◽  
Ferric Ion ◽  
Assembled Monolayers ◽  
Self Assembled

scholarly journals Electrochemical Detection of Nanoscale Phase Separation in Binary Self-Assembled Monolayers

Langmuir ◽  
2005 ◽  
Vol 21 (10) ◽  
pp. 4615-4621 ◽  
Author(s):  
R. Carlisle Chambers ◽  
Christina E. Inman ◽  
James E. Hutchison
Keyword(s):  
Phase Separation ◽  
Electrochemical Detection ◽  
Self Assembled Monolayers ◽  
Nanoscale Phase Separation ◽  
Assembled Monolayers ◽  
Self Assembled

scholarly journals Adsorption and desorption of self-assembled L-cysteine monolayers on nanoporous gold monitored by in situ resistometry

2019 ◽  
Vol 10 ◽  
pp. 2275-2279
Author(s):  
Elisabeth Hengge ◽  
Eva-Maria Steyskal ◽  
Rupert Bachler ◽  
Alexander Dennig ◽  
Bernd Nidetzky ◽  
...  
Keyword(s):  
Gold Surface ◽  
Research Field ◽  
Nanoporous Gold ◽  
Self Assembled Monolayers ◽  
Initial Surface ◽  
Resistance Change ◽  
Adsorption And Desorption ◽  
Assembled Monolayers ◽  
Self Assembled

Surface modifications of nanoporous metals have become a highly attractive research field as they exhibit great potential for various applications, especially in biotechnology. Using self-assembled monolayers is one of the most promising approaches to modify a gold surface. However, only few techniques are capable of characterizing the formation of these monolayers on porous substrates. Here, we present a method to in situ monitor the adsorption and desorption of self-assembled monolayers on nanoporous gold by resistometry, using cysteine as example. During the adsorption an overall relative change in resistance of 18% is detected, which occurs in three distinct stages. First, the cysteine molecules are adsorbed on the outer surface. In the second stage, they are adsorbed on the internal surfaces and in the last stage the reordering accompanied by additional adsorption takes place. The successful binding of cysteine on the Au surface was confirmed by cyclic voltammetry, which showed a significant decrease of the double-layer capacitance. Also, the electrochemically controlled desorption of cysteine was monitored by concomitant in situ resistometry. From the desorption peak related to the (111) surface of the structure, which is associated with a resistance change of 4.8%, an initial surface coverage of 0.48 monolayers of cysteine could be estimated.

Electrochemical Detection of Electrochemically Inactive Cations by Self-Assembled Monolayers of Crown Ethers

1998 ◽  
Vol 120 (19) ◽  
pp. 4652-4657 ◽  
Author(s):  
Simon Flink ◽  
Bernard A. Boukamp ◽  
Albert van den Berg ◽  
Frank C. J. M. van Veggel ◽  
David N. Reinhoudt
Keyword(s):  
Electrochemical Detection ◽  
Crown Ethers ◽  
Self Assembled Monolayers ◽  
Assembled Monolayers ◽  
Self Assembled

Chemomechanical effects of self-assembled monolayers on gold films

2014 ◽  
Vol 68 ◽  
pp. 52-60 ◽  
Author(s):  
Milca Aponte-Roman ◽  
Beda Mohanty ◽  
Adrian B. Mann
Keyword(s):  
Self Assembled Monolayers ◽  
Gold Films ◽  
Assembled Monolayers ◽  
Self Assembled

Ordering and defects in self-assembled monolayers on nanoporous gold

2016 ◽  
Vol 387 ◽  
pp. 503-512 ◽  
Author(s):  
Dipna A. Patel ◽  
Andrew M. Weller ◽  
Robert B. Chevalier ◽  
Constantine A. Karos ◽  
Elizabeth C. Landis
Keyword(s):  
Nanoporous Gold ◽  
Self Assembled Monolayers ◽  
Assembled Monolayers ◽  
Self Assembled

Tailoring the Strength of Nanoporous Gold by Self-Assembled Monolayers of Alkanethiols

2018 ◽  
Vol 1 (12) ◽  
pp. 6613-6621 ◽  
Author(s):  
Nadiia Mameka ◽  
Lukas Lührs ◽  
Stefan Heissler ◽  
Hartmut Gliemann ◽  
Christof Wöll
Keyword(s):  
Nanoporous Gold ◽  
Self Assembled Monolayers ◽  
Assembled Monolayers ◽  
Self Assembled
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