Adsorption and Desorption of Stearic Acid Self-Assembled Monolayers on Aluminum Oxide

Langmuir ◽  
2007 ◽  
Vol 23 (5) ◽  
pp. 2444-2452 ◽  
Author(s):  
Min Soo Lim ◽  
Ke Feng ◽  
Xinqi Chen ◽  
Nianqiang Wu ◽  
Aparna Raman ◽  
...  
Keyword(s):  
Aluminum Oxide ◽  
Stearic Acid ◽  
Self Assembled Monolayers ◽  
Adsorption And Desorption ◽  
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.

scholarly journals Formation of Perfluoroalkyl Fullerene Alkylphosphonic Acid Self-Assembled Monolayers on Aluminum Oxide

2017 ◽  
Vol 6 (6) ◽  
pp. M3163-M3167 ◽  
Author(s):  
Tyler T. Clikeman ◽  
Thomas Schmaltz ◽  
Marcus Halik ◽  
Andreas Hirsch ◽  
Steven H. Strauss ◽  
...  
Keyword(s):  
Aluminum Oxide ◽  
Self Assembled Monolayers ◽  
Assembled Monolayers ◽  
Alkylphosphonic Acid ◽  
Self Assembled

scholarly journals The Preparation and Corrosion Performance of Self-Assembled Monolayers of Stearic Acid and MgO Layer on Pure Magnesium

2014 ◽  
Vol 55 (8) ◽  
pp. 1337-1343 ◽  
Author(s):  
Liying Qiao ◽  
Yong Wang ◽  
Weilang Wang ◽  
Marta Mohedano ◽  
Caihua Gong ◽  
...  
Keyword(s):  
Stearic Acid ◽  
Pure Magnesium ◽  
Self Assembled Monolayers ◽  
Corrosion Performance ◽  
Assembled Monolayers ◽  
Self Assembled

Protection of iron corrosion by stearic acid and stearic imidazoline self-assembled monolayers

2006 ◽  
Vol 253 (2) ◽  
pp. 814-820 ◽  
Author(s):  
Xiuyu Liu ◽  
Shenhao Chen ◽  
Houyi Ma ◽  
Guangzeng Liu ◽  
Lixia Shen
Keyword(s):  
Stearic Acid ◽  
Self Assembled Monolayers ◽  
Iron Corrosion ◽  
Assembled Monolayers ◽  
Self Assembled
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