Self-Assembled Monolayer Formation from Decaneselenol on Polycrystalline Gold As Characterized by Electrochemical Measurements, Quartz-Crystal Microbalance, XPS, and IR Spectroscopy

Langmuir ◽  
2000 ◽  
Vol 16 (5) ◽  
pp. 2225-2229 ◽  
Author(s):  
Koji Nakano ◽  
Takeshi Sato ◽  
Masato Tazaki ◽  
Makoto Takagi
Keyword(s):  
Ir Spectroscopy ◽  
Quartz Crystal Microbalance ◽  
Quartz Crystal ◽  
Electrochemical Measurements ◽  
Self Assembled Monolayer ◽  
Monolayer Formation ◽  
Polycrystalline Gold ◽  
Self Assembled

Charge Transfer Property of Self-Assembled Viologen Derivative by Electrochemical Quartz Crystal Microbalance Response

2006 ◽  
Vol 6 (11) ◽  
pp. 3657-3660 ◽  
Author(s):  
Dong-Yun Lee ◽  
A. K. M. Kafi ◽  
Sang-Hyun Park ◽  
Young-Soo Kwon
Keyword(s):  
Charge Transfer ◽  
Quartz Crystal Microbalance ◽  
Quartz Crystal ◽  
Modified Electrodes ◽  
Electrochemical Quartz Crystal Microbalance ◽  
Frequency Change ◽  
Self Assembled Monolayer ◽  
Transfer Property ◽  
Redox Peak ◽  
Self Assembled

Viologen modified electrodes have been extensively investigated with quartz crystal microbalance (QCM), which has been known as a nano-gram order mass detector, because of their highly reversible electrochemical properties, especially the first reduction-oxidation cycle of V2+ ↔ V•+. The purpose of this work was to study the charge transfer characteristics of self-assembled monolayer (SAM) by changing electrolyte solutions where the cations and anions are different. The redox peak currents were nearly equal charges during redox processes and showed an excellent linear interrelation between the scan rates and second redox peak currents. The charge transfer of self-assembled viologen monolayer was determined by the mass change during the cyclic voltammetry (CV). The total frequency change was about 17.8 Hz, 19.6 Hz, 9.5 Hz, and 8.4 Hz. From this data, we could know the transferred mass was about 19.0 ng, 20.9 ng, 10.2 ng, and 9.0 ng. Finally, the electrochemical quartz crystal microbalance (EQCM) has been employed to monitor the electrochemically induced adsorption of self-assembled monolayer.

Effect of Geometric Constraints on the Self-Assembled Monolayer Formation of Aromatic Disulfides on Polycrystalline Gold

Langmuir ◽  
1998 ◽  
Vol 14 (14) ◽  
pp. 3808-3814 ◽  
Author(s):  
Krisanu Bandyopadhyay ◽  
Vijaya Patil ◽  
Murali Sastry ◽  
K. Vijayamohanan
Keyword(s):  
Geometric Constraints ◽  
The Self ◽  
Self Assembled Monolayer ◽  
Monolayer Formation ◽  
Polycrystalline Gold ◽  
Self Assembled

scholarly journals Immobilization of DNA on Quartz Crystal Microbalance Sensor Modified with Self-Assembled Monolayer of Thiol Derivative

2020 ◽  
Vol 69 (3) ◽  
pp. 271-276 ◽  
Author(s):  
Hirobumi Shibata ◽  
Junpei Nemoto ◽  
Shota Shiba ◽  
Yusuke Yamane ◽  
Gota Kawai ◽  
...  
Keyword(s):  
Quartz Crystal Microbalance ◽  
Quartz Crystal ◽  
Self Assembled Monolayer ◽  
Quartz Crystal Microbalance Sensor ◽  
Self Assembled

scholarly journals Quartz Crystal Microbalance Detection of Aflatoxin B1 by Self-Assembled Monolayer Technique

2019 ◽  
Vol 13 (1) ◽  
pp. 122-128
Author(s):  
Raya Raykova ◽  
Dessislava A. Marinkova ◽  
Vera A. Semerdzhieva ◽  
Magalie Michiel ◽  
Pascal Griesmar ◽  
...  
Keyword(s):  
Quartz Crystal Microbalance ◽  
Aflatoxin B1 ◽  
Quartz Crystal ◽  
Indirect Elisa ◽  
Gold Surface ◽  
Self Assembled Monolayer ◽  
Toxic Pollutants ◽  
Low Concentrations ◽  
Self Assembled ◽  
Antigen Antibody

Background: New biosensor techniques allowing detection of low concentrated substances show a great variety nowadays. The construction of a system with modified quartz as a part of a Quartz Crystal Microbalance (QCM) techniques helps the detection and confirmation of low toxin concentrations in a sample. Objective: The study aims to allow the application of methods for preparation and modification of the gold surface of piezoelectric crystal for detection of aflatoxin B1(AFB1) in the concentration range 0.2 - 2.0 µg/L by QCM technique (quartz - crystal microbalance). Methods: The procedure for the preparation of quartz crystal sensors for experimental purposes was performed. The quartz surface was activated and covered with self-assembled monolayer to immobilize antibody (rabbit anti-aflatoxin B1) for the detection of antigen - antibody reaction. Results: The G” corresponds to viscous properties of the material, during applied deformation of the material in the presence of different concentrations, which revealed in the sensitivity of the used resonator. Conclusion: Detection of toxic pollutants may be achieved via QCM methods, ultrasound resonator and piezoelectric quartz techniques for measurement. These techniques allow detection of significantly low concentrations of toxic pollutants, in particular, AFB1, compared to analysis with direct and indirect ELISA immunoassays.

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